/** * Copyright (c) 2021 OceanBase * OceanBase CE is licensed under Mulan PubL v2. * You can use this software according to the terms and conditions of the Mulan PubL v2. * You may obtain a copy of Mulan PubL v2 at: * http://license.coscl.org.cn/MulanPubL-2.0 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. * See the Mulan PubL v2 for more details. */ #define USING_LOG_PREFIX SQL_SESSION #include "sql/session/ob_basic_session_info.h" #include "lib/string/ob_sql_string.h" #include "lib/timezone/ob_oracle_format_models.h" #include "common/sql_mode/ob_sql_mode_utils.h" #include "common/ob_smart_call.h" #include "share/config/ob_server_config.h" #include "share/schema/ob_schema_getter_guard.h" #include "share/schema/ob_sys_variable_mgr.h" #include "sql/engine/ob_exec_context.h" #include "sql/plan_cache/ob_plan_cache_util.h" #include "sql/plan_cache/ob_prepare_stmt_struct.h" #include "sql/ob_sql_trans_util.h" #include "observer/ob_server_struct.h" #include "sql/engine/ob_physical_plan.h" #include "storage/transaction/ob_weak_read_util.h" //ObWeakReadUtil #include "observer/omt/ob_tenant_timezone_mgr.h" #include "observer/omt/ob_tenant_config_mgr.h" using namespace oceanbase::common; using namespace oceanbase::share; using namespace oceanbase::share::schema; using namespace oceanbase::transaction; namespace oceanbase { namespace sql { ObBasicSessionInfo::ObBasicSessionInfo() : query_mutex_(), thread_data_mutex_(), is_valid_(true), is_deserialized_(false), tenant_id_(OB_INVALID_ID), effective_tenant_id_(OB_INVALID_ID), rpc_tenant_id_(0), is_changed_to_temp_tenant_(false), user_id_(OB_INVALID_ID), client_version_(), driver_version_(), sessid_(0), master_sessid_(INVALID_SESSID), version_(0), proxy_sessid_(VALID_PROXY_SESSID), // in_transaction_(false), variables_last_modify_time_(0), global_vars_version_(0), sys_var_base_version_(OB_INVALID_VERSION), des_sys_var_base_version_(OB_INVALID_VERSION), trans_desc_(), trans_consistency_type_(transaction::ObTransConsistencyType::UNKNOWN), // minus 32 is used for alignment of ObMalloc, preventing memory allocation more than 8K. block_allocator_( SMALL_BLOCK_SIZE, common::OB_MALLOC_NORMAL_BLOCK_SIZE - 32, ObMalloc(ObModIds::OB_SQL_SESSION_SBLOCK)), ps_session_info_allocator_( sizeof(ObPsSessionInfo), common::OB_MALLOC_NORMAL_BLOCK_SIZE - 32, ObMalloc("PsSessionInfo")), name_pool_(ObModIds::OB_SQL_SESSION, OB_MALLOC_NORMAL_BLOCK_SIZE), base_sys_var_alloc_(ObModIds::OB_SQL_SESSION, OB_MALLOC_NORMAL_BLOCK_SIZE), trans_flags_(), bucket_allocator_wrapper_(&block_allocator_), user_var_val_map_(SMALL_BLOCK_SIZE, ObWrapperAllocator(&block_allocator_)), influence_plan_var_indexs_(), is_first_gen_(true), sys_var_fac_(), consistency_level_(INVALID_CONSISTENCY), tz_info_wrap_(), next_tx_read_only_(-1), next_tx_isolation_(transaction::ObTransIsolation::UNKNOWN), log_id_level_map_valid_(false), cur_phy_plan_(NULL), capability_(), proxy_capability_(), client_mode_(OB_MIN_CLIENT_MODE), changed_sys_vars_(), changed_user_vars_(), changed_var_pool_(ObModIds::OB_SQL_SESSION, OB_MALLOC_NORMAL_BLOCK_SIZE), is_database_changed_(false), feedback_manager_(), trans_spec_status_(TRANS_SPEC_NOT_SET), debug_sync_actions_(), partition_hit_(), magic_num_(0x13572468), current_execution_id_(-1), database_id_(OB_INVALID_ID), retry_info_(), last_query_trace_id_(), nested_count_(-1), safe_weak_read_snapshot_(0), weak_read_snapshot_source_(0), curr_trans_last_stmt_end_time_(0), read_snapshot_version_(OB_INVALID_VERSION), check_sys_variable_(true), is_foreign_key_cascade_(false), is_foreign_key_check_exist_(false), acquire_from_pool_(false), release_to_pool_(true), is_tenant_killed_(0), reused_count_(0), first_stmt_type_(stmt::T_NONE), exec_min_cluster_version_(GET_MIN_CLUSTER_VERSION()), stmt_type_(stmt::T_NONE), thread_id_(0), is_password_expired_(false) { MEMSET(sys_vars_, 0, sizeof(sys_vars_)); log_id_level_map_.reset_level(); CHAR_CARRAY_INIT(tenant_); CHAR_CARRAY_INIT(effective_tenant_); CHAR_CARRAY_INIT(trace_id_buff_); ssl_cipher_buff_[0] = '\0'; } ObBasicSessionInfo::~ObBasicSessionInfo() { destroy(); } bool ObBasicSessionInfo::is_server_status_in_transaction() const { /*! * readonly sql not in transaction, for compatible, we also need send in trans flag to proxy. * for now, * we use ob_proxy_readonly_transaction_routing_policy parameter decide to send in trans or not. */ bool result = get_in_transaction(); if (!result && !get_local_autocommit() && trans_desc_.get_standalone_stmt_desc().is_snapshot_version_valid()) { omt::ObTenantConfigGuard tenant_config(TENANT_CONF(get_effective_tenant_id())); result = is_isolation_serializable() || tenant_config->ob_proxy_readonly_transaction_routing_policy; } return result; } // for test int ObBasicSessionInfo::test_init( uint32_t version, uint32_t sessid, uint64_t proxy_sessid, common::ObIAllocator* bucket_allocator) { int ret = OB_SUCCESS; if (NULL != bucket_allocator) { bucket_allocator_wrapper_.set_alloc(bucket_allocator); } ret = user_var_val_map_.init(1024 * 1024 * 2, 256, // # of user variables (NULL == bucket_allocator ? NULL : &bucket_allocator_wrapper_)); if (OB_FAIL(ret)) { LOG_WARN("fail to init user_var_val_map", K(ret)); } else if (OB_FAIL(debug_sync_actions_.init(SMALL_BLOCK_SIZE, bucket_allocator_wrapper_))) { LOG_WARN("fail to init debug sync actions", K(ret)); } else if (OB_FAIL(set_session_state(SESSION_INIT))) { LOG_WARN("fail to set session stat", K(ret)); } else if (OB_FAIL(trans_desc_.test_init())) { LOG_WARN("transaction desc init error", K(ret)); } else if (OB_FAIL(set_time_zone(ObString("+8:00"), is_oracle_compatible(), true /* check_timezone_valid */))) { LOG_WARN("fail to set time zone", K(ret)); } else { // tz_info_wrap_.set_tz_info_map(GCTX.tz_info_mgr_->get_tz_info_map()); version_ = version; sessid_ = sessid; proxy_sessid_ = proxy_sessid; } return ret; } bool ObBasicSessionInfo::is_use_inner_allocator() const { return bucket_allocator_wrapper_.get_alloc() == &block_allocator_; } int ObBasicSessionInfo::init(uint32_t version, uint32_t sessid, uint64_t proxy_sessid, common::ObIAllocator* bucket_allocator, const ObTZInfoMap* tz_info) { int ret = OB_SUCCESS; ObWrapperAllocator* user_var_allocator_wrapper = NULL; if (is_acquire_from_pool()) { reused_count_++; if (OB_NOT_NULL(bucket_allocator) || !is_use_inner_allocator()) { ret = OB_ERR_UNEXPECTED; LOG_WARN("session from pool must use inner allocator", K(ret)); } } else { if (NULL != bucket_allocator) { bucket_allocator_wrapper_.set_alloc(bucket_allocator); user_var_allocator_wrapper = &bucket_allocator_wrapper_; } } if (OB_FAIL(ret)) { } else if (!is_acquire_from_pool() && OB_FAIL(user_var_val_map_.init(1024 * 1024 * 2, 256, user_var_allocator_wrapper))) { LOG_WARN("fail to init user_var_val_map", K(ret)); } else if (!is_acquire_from_pool() && OB_FAIL(debug_sync_actions_.init(SMALL_BLOCK_SIZE, bucket_allocator_wrapper_))) { LOG_WARN("fail to init debug sync actions", K(ret)); } else if (OB_FAIL(set_session_state(SESSION_INIT))) { LOG_WARN("fail to set session stat", K(ret)); } else if (OB_FAIL(trans_desc_.init(this))) { LOG_WARN("transaction desc init error", K(ret)); } else if (FALSE_IT(trans_result_.set_trans_desc(&trans_desc_))) { } else { version_ = version; sessid_ = sessid; proxy_sessid_ = proxy_sessid; uint64_t tenant_id = tenant_id_; if (OB_ISNULL(tz_info)) { ObTZMapWrap tz_map_wrap; if (OB_FAIL(OTTZ_MGR.get_tenant_tz(tenant_id, tz_map_wrap))) { LOG_WARN("get tenant timezone map failed", K(ret)); } else { tz_info_wrap_.set_tz_info_map(tz_map_wrap.get_tz_map()); } } else { tz_info_wrap_.set_tz_info_map(tz_info); } } return ret; } int ObBasicSessionInfo::update_safe_weak_read_snapshot( const uint64_t tenant_id, const int64_t& safe_weak_read_snapshot, const int64_t& safe_weak_read_snapshot_source) { int ret = OB_SUCCESS; if (!ObWeakReadUtil::enable_monotonic_weak_read(tenant_id)) { LOG_WARN("observer not support causal order slave read", K(safe_weak_read_snapshot)); } else if (safe_weak_read_snapshot < 0) { TRANS_LOG(WARN, "invalid argument", K(safe_weak_read_snapshot)); ret = OB_INVALID_ARGUMENT; } else { if (safe_weak_read_snapshot_ < safe_weak_read_snapshot) { safe_weak_read_snapshot_ = safe_weak_read_snapshot; weak_read_snapshot_source_ = safe_weak_read_snapshot_source; } } return ret; } void ObBasicSessionInfo::destroy() { if (magic_num_ != 0x13572468) { LOG_ERROR("ObBasicSessionInfo may be double free!!!", K(magic_num_)); } trans_desc_.destroy(); trans_result_.reset(); trans_consistency_type_ = transaction::ObTransConsistencyType::UNKNOWN; magic_num_ = 0x86427531; if (thread_data_.cur_query_ != nullptr) { ob_free(thread_data_.cur_query_); thread_data_.cur_query_ = nullptr; thread_data_.cur_query_buf_len_ = 0; } total_stmt_tables_.reset(); cur_stmt_tables_.reset(); } void ObBasicSessionInfo::clean_status() { // in_transaction_ = false; trans_flags_.reset(); trans_spec_status_ = TRANS_SPEC_NOT_SET; // trans_desc_.reset(); trans_consistency_type_ = transaction::ObTransConsistencyType::UNKNOWN; set_valid(true); thread_data_.cur_query_start_time_ = 0; thread_data_.cur_query_len_ = 0; thread_data_.last_active_time_ = 0; reset_session_changed_info(); } void ObBasicSessionInfo::reset(bool skip_sys_var) { set_valid(false); is_deserialized_ = false; CHAR_CARRAY_INIT(tenant_); tenant_id_ = OB_INVALID_ID; CHAR_CARRAY_INIT(effective_tenant_); effective_tenant_id_ = OB_INVALID_ID; is_changed_to_temp_tenant_ = false; user_id_ = OB_INVALID_ID; client_version_.reset(); driver_version_.reset(); sessid_ = 0; master_sessid_ = INVALID_SESSID; version_ = 0; proxy_sessid_ = VALID_PROXY_SESSID; variables_last_modify_time_ = 0; global_vars_version_ = 0; des_sys_var_base_version_ = OB_INVALID_VERSION; trans_desc_.reset(); trans_consistency_type_ = transaction::ObTransConsistencyType::UNKNOWN; trans_result_.reset(); total_stmt_tables_.reset(); cur_stmt_tables_.reset(); // reset() of user_var_val_map_ and debug_sync_actions_ will keep some memory // allocated from block_allocator_ / bucket_allocator_wrapper_, so we skip // reset() of block_allocator_ and bucket_allocator_wrapper_. // block_allocator_.reset(); ps_session_info_allocator_.reset(); trans_flags_.reset(); // bucket_allocator_wrapper_.reset(); user_var_val_map_.reuse(); if (!skip_sys_var) { memset(sys_vars_, 0, sizeof(sys_vars_)); influence_plan_var_indexs_.reset(); } else { const SysVarIds& all_sys_var_ids = sys_var_inc_info_.get_all_sys_var_ids(); for (int i = 0; i < all_sys_var_ids.count(); i++) { int ret = OB_SUCCESS; int64_t store_idx = -1; ObSysVarClassType sys_var_id = all_sys_var_ids.at(i); OZ(ObSysVarFactory::calc_sys_var_store_idx(sys_var_id, store_idx)); OV(0 <= store_idx && store_idx < ObSysVarFactory::ALL_SYS_VARS_COUNT); OV(OB_NOT_NULL(sys_vars_[store_idx])); OX(sys_vars_[store_idx]->clean_inc_value()); } sys_var_inc_info_.reset(); reset_timezone(); } sys_var_in_pc_str_.reset(); is_first_gen_ = true; CHAR_CARRAY_INIT(trace_id_buff_); // consistency_level_ = INVALID_CONSISTENCY; next_tx_read_only_ = -1; next_tx_isolation_ = transaction::ObTransIsolation::UNKNOWN; log_id_level_map_valid_ = false; log_id_level_map_.reset_level(); cur_phy_plan_ = NULL; capability_.capability_ = 0; proxy_capability_.capability_ = 0; client_mode_ = OB_MIN_CLIENT_MODE; reset_session_changed_info(); trans_spec_status_ = TRANS_SPEC_NOT_SET; debug_sync_actions_.reset(); partition_hit_.reset(); // magic_num_ = 0x86427531; current_execution_id_ = -1; last_trace_id_.reset(); app_trace_id_.reset(); database_id_ = OB_INVALID_ID; retry_info_.reset(); last_query_trace_id_.reset(); thread_data_.reset(); nested_count_ = -1; if (!skip_sys_var) { sys_vars_cache_.reset(); } else { sys_vars_cache_.clean_inc(); } safe_weak_read_snapshot_ = 0; weak_read_snapshot_source_ = 0; curr_trans_last_stmt_end_time_ = 0; read_snapshot_version_ = OB_INVALID_VERSION; check_sys_variable_ = true; is_foreign_key_cascade_ = false; is_foreign_key_check_exist_ = false; acquire_from_pool_ = false; // skip release_to_pool_, see comments in .h file. is_tenant_killed_ = 0; first_stmt_type_ = stmt::T_NONE; exec_min_cluster_version_ = GET_MIN_CLUSTER_VERSION(); thread_id_ = 0; is_password_expired_ = false; // release all allocators at last, otherwise some members may keep invalid pointers, // and for_each_session() of session mgr may core if access these invalid pointers. name_pool_.reset(); if (!skip_sys_var) { base_sys_var_alloc_.reset(); sys_var_fac_.destroy(); } } void ObBasicSessionInfo::reset_timezone() { int ret = OB_SUCCESS; ObObj tmp_obj1; if (OB_FAIL(get_sys_variable(SYS_VAR_TIME_ZONE, tmp_obj1))) { LOG_WARN("get sys var failed", K(ret)); } else if (OB_FAIL(process_session_time_zone_value(tmp_obj1, false))) { LOG_WARN("set time zone failed", K(ret)); } ObObj tmp_obj2; if (OB_FAIL(get_sys_variable(SYS_VAR_ERROR_ON_OVERLAP_TIME, tmp_obj2))) { LOG_WARN("get sys var failed", K(ret)); } else if (OB_FAIL(process_session_overlap_time_value(tmp_obj2))) { LOG_WARN("process session overlap time value failed", K(ret), K(tmp_obj2)); } } int ObBasicSessionInfo::init_tenant(const ObString& tenant_name, const uint64_t tenant_id) { int ret = OB_SUCCESS; if (OB_UNLIKELY(!is_valid_tenant_id(tenant_id))) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid tenant id", K(tenant_id), K(ret)); } else if (tenant_name.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("tenant name is empty", K(tenant_name), K(ret)); } else if (tenant_name.length() > OB_MAX_TENANT_NAME_LENGTH) { ret = OB_INVALID_ARGUMENT; LOG_WARN("tenant name too long", K(tenant_name), K(ret)); } else if (OB_FAIL(ob_cstrcopy(tenant_, sizeof(tenant_), tenant_name))) { LOG_WARN("failed to copy tenant name", K(tenant_name), K(ret)); } else if (OB_FAIL(ob_cstrcopy(effective_tenant_, sizeof(effective_tenant_), tenant_name))) { LOG_WARN("failed to copy effective tenant name", K(tenant_name), K(ret)); } else { ObTZMapWrap tz_map_wrap; if (OB_FAIL(OTTZ_MGR.get_tenant_tz(tenant_id, tz_map_wrap))) { LOG_WARN("get tenant timezone map failed", K(ret)); } else { tz_info_wrap_.set_tz_info_map(tz_map_wrap.get_tz_map()); tenant_id_ = tenant_id; effective_tenant_id_ = tenant_id; LOG_DEBUG("init session tenant", K(tenant_name), K(tenant_id)); } } return ret; } int ObBasicSessionInfo::set_tenant(const common::ObString& tenant_name, const uint64_t tenant_id) { int ret = OB_SUCCESS; if (!is_valid_tenant_id(tenant_id)) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid tenant id", K(tenant_id), K(ret)); } else if (tenant_name.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("tenant name is empty", K(tenant_name), K(ret)); } else if (tenant_name.length() > OB_MAX_TENANT_NAME_LENGTH) { ret = OB_INVALID_ARGUMENT; LOG_WARN("tenant name too long", K(tenant_name), K(ret)); } else if (OB_FAIL(ob_cstrcopy(tenant_, sizeof(tenant_), tenant_name))) { LOG_WARN("tenant name too long", K(tenant_name)); } else { tenant_id_ = tenant_id; LOG_TRACE("set tenant", K(tenant_name), K(tenant_id)); } return ret; } int ObBasicSessionInfo::set_tenant(const common::ObString& tenant_name, const uint64_t tenant_id, char* ori_tenant_name, const uint64_t length, uint64_t& ori_tenant_id) { int ret = OB_SUCCESS; if (!is_valid_tenant_id(tenant_id)) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid tenant id", K(tenant_id), K(ret)); } else if (OB_ISNULL(ori_tenant_name)) { ret = OB_INVALID_ARGUMENT; LOG_WARN("ori_tenant_name is NULL", K(ret)); } else if (length < OB_MAX_TENANT_NAME_LENGTH + 1) { ret = OB_INVALID_ARGUMENT_FOR_LENGTH; LOG_WARN("tenant_name length is not enough "); } else if (tenant_name.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("tenant name is empty", K(tenant_name), K(ret)); } else if (tenant_name.length() > OB_MAX_TENANT_NAME_LENGTH) { ret = OB_INVALID_ARGUMENT; LOG_WARN("tenant name too long", K(tenant_name), K(ret)); } else if (OB_FAIL(ob_cstrcopy(ori_tenant_name, length, tenant_, strlen(tenant_)))) { LOG_ERROR("tenant_name is longer than ori_tenant_name", K(length), K(strlen(tenant_))); } else if (OB_FAIL(ob_cstrcopy(tenant_, sizeof(tenant_), tenant_name))) { LOG_ERROR("tenant name too long", K(tenant_name)); } else { ori_tenant_id = tenant_id_; tenant_id_ = tenant_id; } return ret; } int ObBasicSessionInfo::switch_tenant(uint64_t effective_tenant_id) { int ret = OB_SUCCESS; if (OB_SYS_TENANT_ID != tenant_id_) { ret = OB_NOT_SUPPORTED; LOG_WARN("only support sys tenant switch tenant", K(ret), K(tenant_id_), K(effective_tenant_id_)); } else if (effective_tenant_id <= 0) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid tenant_id", K(ret), K(effective_tenant_id)); } else { #ifndef NDEBUG if (effective_tenant_id_ != effective_tenant_id) { LOG_INFO( "switch tenant", K(effective_tenant_id), K(effective_tenant_id_), "priv_tenant_id", tenant_id_, K(lbt())); } #endif effective_tenant_id_ = effective_tenant_id; } return ret; } const common::ObString ObBasicSessionInfo::get_tenant_name() const { return ObString::make_string(tenant_); } const common::ObString ObBasicSessionInfo::get_effective_tenant_name() const { return ObString::make_string(effective_tenant_); } int ObBasicSessionInfo::set_user(const ObString& user_name, const ObString& host_name, const uint64_t user_id) { int ret = OB_SUCCESS; if (OB_UNLIKELY(user_name.length() > common::OB_MAX_USER_NAME_LENGTH) || OB_UNLIKELY(host_name.length() > common::OB_MAX_HOST_NAME_LENGTH)) { ret = OB_INVALID_ARGUMENT; LOG_WARN("name length invalid_", K(user_name), K(host_name), K(ret)); } else { char tmp_buf[common::OB_MAX_USER_NAME_LENGTH + common::OB_MAX_HOST_NAME_LENGTH + 2] = {}; snprintf(tmp_buf, sizeof(tmp_buf), "%.*s@%.*s", user_name.length(), user_name.ptr(), host_name.length(), host_name.ptr()); ObString tmp_string(tmp_buf); LockGuard lock_guard(thread_data_mutex_); if (OB_FAIL(name_pool_.write_string(user_name, &thread_data_.user_name_))) { LOG_WARN("fail to write username to string_buf_", K(user_name), K(ret)); } else if (OB_FAIL(name_pool_.write_string(host_name, &thread_data_.host_name_))) { LOG_WARN("fail to write hostname to string_buf_", K(host_name), K(ret)); } else if (OB_FAIL(name_pool_.write_string(tmp_string, &thread_data_.user_at_host_name_))) { LOG_WARN("fail to write user_at_host_name to string_buf_", K(tmp_string), K(ret)); } else { user_id_ = user_id; } } return ret; } int ObBasicSessionInfo::set_real_client_ip(const common::ObString& client_ip) { int ret = OB_SUCCESS; char tmp_buf[common::OB_MAX_USER_NAME_LENGTH + common::OB_MAX_HOST_NAME_LENGTH + 2] = {}; snprintf(tmp_buf, sizeof(tmp_buf), "%.*s@%.*s", thread_data_.user_name_.length(), thread_data_.user_name_.ptr(), client_ip.length(), client_ip.ptr()); ObString tmp_string(tmp_buf); LockGuard lock_guard(thread_data_mutex_); if (OB_FAIL(name_pool_.write_string(client_ip, &thread_data_.client_ip_))) { LOG_WARN("fail to write client_ip to string_buf_", K(client_ip), K(ret)); } else if (OB_FAIL(name_pool_.write_string(tmp_string, &thread_data_.user_at_client_ip_))) { LOG_WARN("fail to write user_at_host_name to string_buf_", K(tmp_string), K(ret)); } else { thread_data_.user_client_addr_.set_ip_addr(client_ip, 0); } return ret; } int ObBasicSessionInfo::check_and_init_retry_info(const ObCurTraceId::TraceId& cur_trace_id, const ObString& sql) { int ret = OB_SUCCESS; if (last_query_trace_id_.equals(cur_trace_id)) { // is retrying. if (OB_UNLIKELY(!retry_info_.is_inited())) { LOG_ERROR("is retry packet, but retry info is not inited, will init it", K(last_query_trace_id_), K(cur_trace_id), K(retry_info_), K(get_sessid()), K(sql)); if (OB_FAIL(retry_info_.init())) { LOG_WARN("fail to init retry info", K(ret), K(retry_info_), K(sql)); } } } else { if (OB_UNLIKELY(retry_info_.is_inited())) { retry_info_.reset(); } if (OB_FAIL(retry_info_.init())) { LOG_WARN("fail to init retry info", K(ret), K(retry_info_), K(sql)); } else { last_query_trace_id_.set(cur_trace_id); } } return ret; } void ObBasicSessionInfo::check_and_reset_retry_info(const ObCurTraceId::TraceId& cur_trace_id, bool is_packet_retry) { if (!is_packet_retry) { retry_info_.reset(); } last_query_trace_id_.set(cur_trace_id); } const ObLogIdLevelMap* ObBasicSessionInfo::get_log_id_level_map() const { return (log_id_level_map_valid_ ? (&log_id_level_map_) : NULL); } int ObBasicSessionInfo::set_client_version(const ObString& client_version) { int ret = OB_SUCCESS; if (client_version.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("client version is empty", K(client_version), K(ret)); } else if (OB_FAIL(name_pool_.write_string(client_version, &client_version_))) { LOG_WARN("failed to write client_version to string_buf_", K(ret)); } else { } return ret; } int ObBasicSessionInfo::set_driver_version(const ObString& driver_version) { int ret = OB_SUCCESS; if (driver_version.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("driver version is empty", K(driver_version), K(ret)); } else if (OB_FAIL(name_pool_.write_string(driver_version, &driver_version_))) { LOG_WARN("failed to write driver_version to string_buf_", K(ret)); } else { } return ret; } int ObBasicSessionInfo::set_default_database( const ObString& database_name, const ObCollationType coll_type /*= CS_TYPE_INVALID */) { int ret = OB_SUCCESS; if (database_name.length() > OB_MAX_DATABASE_NAME_LENGTH) { ret = OB_INVALID_ARGUMENT_FOR_LENGTH; LOG_WARN("invalid length for database_name", K(database_name), K(ret)); } else { if (CS_TYPE_INVALID != coll_type) { const int64_t coll_val = static_cast(coll_type); if (OB_FAIL(update_sys_variable(SYS_VAR_CHARACTER_SET_DATABASE, coll_val))) { LOG_WARN("failed to update variable", K(ret)); } else if (OB_FAIL(update_sys_variable(SYS_VAR_COLLATION_DATABASE, coll_val))) { LOG_WARN("failed to update variable", K(ret)); } else { } } if (OB_SUCC(ret)) { LockGuard lock_guard(thread_data_mutex_); MEMCPY(thread_data_.database_name_, database_name.ptr(), database_name.length()); thread_data_.database_name_[database_name.length()] = '\0'; if (is_track_session_info()) { is_database_changed_ = true; } } } return ret; } int ObBasicSessionInfo::update_database_variables(ObSchemaGetterGuard* schema_guard) { int ret = OB_SUCCESS; if (OB_ISNULL(schema_guard)) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid schema guard is NULL", K(ret)); } else { if ('\0' == thread_data_.database_name_[0]) { // no default database ObObj val; if (OB_FAIL(get_sys_variable(SYS_VAR_CHARACTER_SET_SERVER, val))) { LOG_WARN("failed to get sys variable", K(ret)); } else if (OB_FAIL(update_sys_variable(SYS_VAR_CHARACTER_SET_DATABASE, val))) { LOG_WARN("failed to update sys variable", K(ret)); } else if (OB_FAIL(get_sys_variable(SYS_VAR_COLLATION_SERVER, val))) { LOG_WARN("failed to get sys variable", K(ret)); } else if (OB_FAIL(update_sys_variable(SYS_VAR_COLLATION_DATABASE, val))) { LOG_WARN("failed to update sys variable", K(ret)); } else { } } else { const share::schema::ObDatabaseSchema* db_schema = NULL; ObString db_name(thread_data_.database_name_); if (OB_FAIL(schema_guard->get_database_schema(effective_tenant_id_, db_name, db_schema))) { LOG_WARN("get database schema failed", K(effective_tenant_id_), K(db_name), K(ret)); } else if (NULL == db_schema) { ret = OB_ERR_BAD_DATABASE; LOG_WARN("database not exist", K(effective_tenant_id_), K(db_name), K(ret)); LOG_USER_ERROR(OB_ERR_BAD_DATABASE, db_name.length(), db_name.ptr()); } else { const int64_t db_coll = static_cast(db_schema->get_collation_type()); if (OB_FAIL(update_sys_variable(SYS_VAR_CHARACTER_SET_DATABASE, db_coll))) { LOG_WARN("failed to update sys variable", K(ret)); } else if (OB_FAIL(update_sys_variable(SYS_VAR_COLLATION_DATABASE, db_coll))) { LOG_WARN("failed to update sys variable", K(ret)); } else { } } } } return ret; } int ObBasicSessionInfo::update_max_packet_size() { int ret = OB_SUCCESS; int64_t max_allowed_pkt = 0; int64_t net_buffer_len = 0; if (OB_FAIL(get_max_allowed_packet(max_allowed_pkt))) { LOG_WARN("fail to get_max_allowed_packet", K(ret)); } else if (OB_FAIL(get_net_buffer_length(net_buffer_len))) { LOG_WARN("fail to get_net_buffer_length", K(ret)); } else { thread_data_.max_packet_size_ = std::max(max_allowed_pkt, net_buffer_len); } return ret; } const ObString ObBasicSessionInfo::get_database_name() const { ObString str_ret; str_ret.assign_ptr( const_cast(thread_data_.database_name_), static_cast(strlen(thread_data_.database_name_))); return str_ret; } //// FIXME: // int ObBasicSessionInfo::get_database_id( // ObSchemaGetterGuard *schema_guard, // uint64_t &db_id) const //{ // int ret = OB_SUCCESS; // db_id = OB_INVALID_ID; // if (get_database_name().empty()) { // //do nothing // } else if (OB_UNLIKELY(NULL == schema_guard)) { // ret = OB_INVALID_ARGUMENT; // LOG_WARN("Schema guard should not be NULL", K(ret)); // } else if (OB_FAIL(schema_guard->get_database_id(get_effective_tenant_id(), get_database_name(), // db_id))) { // db_id = OB_INVALID_ID; // LOG_WARN("failed to get database id", K(db_id), K(ret)); // } else { }//do nothing // return ret; //} //////////////////////////////////////////////////////////////// int ObBasicSessionInfo::get_global_sys_variable( const ObBasicSessionInfo* session, ObIAllocator& calc_buf, const ObString& var_name, ObObj& val) { int ret = OB_SUCCESS; if (OB_ISNULL(session)) { ret = OB_INVALID_ARGUMENT; LOG_WARN("session is NULL", K(ret), K(var_name)); } else { // const ObDataTypeCastParams dtc_params(session->get_timezone_info(), // session->get_local_nls_formats(), // session->get_nls_collation(), // session->get_nls_collation_nation()); ObDataTypeCastParams dtc_params = session->get_dtc_params(); if (OB_FAIL(get_global_sys_variable(session->get_effective_tenant_id(), calc_buf, dtc_params, var_name, val))) { LOG_WARN("fail to get global sys variable", K(ret), K(var_name)); } } return ret; } int ObBasicSessionInfo::get_global_sys_variable(const uint64_t actual_tenant_id, // tenant may be switched ObIAllocator& calc_buf, const ObDataTypeCastParams& dtc_params, const ObString& var_name, ObObj& val) { int ret = OB_SUCCESS; ObSchemaGetterGuard schema_guard; const ObTenantSchema* tenant_schema = NULL; const ObSysVarSchema* sysvar_schema = NULL; const ObSysVariableSchema* sys_variable_schema = NULL; if (OB_UNLIKELY(!is_valid_tenant_id(actual_tenant_id))) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid tenant id", K(actual_tenant_id), K(ret)); } else if (OB_ISNULL(GCTX.schema_service_)) { ret = OB_INVALID_ARGUMENT; OB_LOG(WARN, "invalid argument", K(GCTX.schema_service_)); } else if (OB_FAIL(GCTX.schema_service_->get_tenant_schema_guard(actual_tenant_id, schema_guard))) { ret = OB_SCHEMA_ERROR; OB_LOG(WARN, "fail get schema guard", K(ret)); } else if (OB_FAIL(schema_guard.get_tenant_info(actual_tenant_id, tenant_schema))) { LOG_WARN("get tenant info failed", K(ret), K(actual_tenant_id)); } else if (OB_ISNULL(tenant_schema)) { ret = OB_SCHEMA_ERROR; LOG_WARN("tenant_schema is NULL", K(ret)); } else if (OB_FAIL(schema_guard.get_sys_variable_schema(actual_tenant_id, sys_variable_schema))) { LOG_WARN("get sys variable schema failed", K(ret)); } else if (OB_ISNULL(sys_variable_schema)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("sys variable schema is null", K(ret)); } else if (OB_FAIL(sys_variable_schema->get_sysvar_schema(var_name, sysvar_schema))) { ret = OB_ERR_SYS_VARIABLE_UNKNOWN; LOG_WARN("failed to get sysvar", K(ret), K(var_name)); } else if (OB_ISNULL(sysvar_schema)) { ret = OB_SCHEMA_ERROR; LOG_WARN("tenant_schema is NULL", K(ret)); } else if (OB_FAIL(sysvar_schema->get_value(&calc_buf, dtc_params, val))) { LOG_WARN("failed to get value", K(ret), K(var_name)); } else if (OB_FAIL(ObBasicSessionInfo::change_value_for_special_sys_var(var_name, val, val))) { LOG_ERROR("fail to change value for special sys var", K(ret), K(var_name), K(val)); } else { LOG_DEBUG("get global sysvar", K(var_name), K(val)); } return ret; } const ObBasicSysVar* ObBasicSessionInfo::get_sys_var(const int64_t idx) const { const ObBasicSysVar* var = NULL; if (idx >= 0 && idx < ObSysVarFactory::ALL_SYS_VARS_COUNT) { var = sys_vars_[idx]; } return var; } int ObBasicSessionInfo::init_system_variables(const bool print_info_log, const bool is_sys_tenant) { int ret = OB_SUCCESS; ObString name; ObObj type; ObObj value; ObObj min_val; ObObj max_val; ObObjType var_type = ObNullType; int64_t var_flag = ObSysVarFlag::NONE; int64_t var_amount = ObSysVariables::get_amount(); ObObj casted_value; ObArenaAllocator calc_buf(ObModIds::OB_SQL_SESSION); ObCastCtx cast_ctx(&calc_buf, NULL, CM_NONE, ObCharset::get_system_collation()); for (int64_t i = 0; OB_SUCC(ret) && i < var_amount; ++i) { name.assign_ptr(const_cast(ObSysVariables::get_name(i).ptr()), static_cast(strlen(ObSysVariables::get_name(i).ptr()))); bool is_exist = false; if (OB_FAIL(sys_variable_exists(name, is_exist))) { LOG_WARN("failed to check if sys variable exists", K(name), K(ret)); } else if (!is_exist) { var_type = ObSysVariables::get_type(i); var_flag = ObSysVariables::get_flags(i); value.set_varchar(ObSysVariables::get_value(i)); value.set_collation_type(ObCharset::get_system_collation()); min_val.set_varchar(ObSysVariables::get_min(i)); min_val.set_collation_type(ObCharset::get_system_collation()); max_val.set_varchar(ObSysVariables::get_max(i)); max_val.set_collation_type(ObCharset::get_system_collation()); type.set_type(var_type); if (is_sys_tenant) { if (OB_FAIL(process_variable_for_tenant(name, value))) { LOG_WARN("process system variable for tenant error", K(name), K(value), K(ret)); } } if (OB_SUCC(ret)) { if (OB_FAIL(load_sys_variable(name, type, value, min_val, max_val, var_flag))) { LOG_WARN("fail to load default system variable", K(name), K(ret)); } else if (OB_NOT_NULL(sys_vars_[i]) && sys_vars_[i]->is_influence_plan() && OB_FAIL(influence_plan_var_indexs_.push_back(i))) { LOG_WARN("fail to add influence plan sys var", K(name), K(ret)); } else if (print_info_log) { LOG_INFO("load default system variable", name.ptr(), value.get_string().ptr()); } } } } // end for if (OB_SUCC(ret)) { if (OB_FAIL(gen_sys_var_in_pc_str())) { LOG_INFO("fail to generate system variables in pc str"); } else { global_vars_version_ = 0; sys_var_base_version_ = 0; } } return ret; } int ObBasicSessionInfo::update_query_sensitive_system_variable(ObSchemaGetterGuard& schema_guard) { int ret = OB_SUCCESS; const ObSysVarSchema* sysvar = NULL; int64_t schema_version = -1; const ObSimpleSysVariableSchema* sys_variable_schema = NULL; const uint64_t tenant_id = get_effective_tenant_id(); int64_t refreshed_schema_version = OB_INVALID_VERSION; if (!check_sys_variable_) { // skip to avoid circular dependency. } else if (OB_FAIL(schema_guard.get_schema_version(tenant_id, refreshed_schema_version))) { LOG_WARN("fail to get tenant schema version", K(ret), K(tenant_id)); } else if (OB_CORE_SCHEMA_VERSION >= refreshed_schema_version) { // if in tenant creation process or the tenant creation fails or the local schema is not refreshed, // the system variables can not be obtained, skip this step. } else if (OB_FAIL(schema_guard.get_sys_variable_schema(tenant_id, sys_variable_schema))) { LOG_WARN("get tenant schema version failed", K(ret), K(tenant_id)); } else if (OB_ISNULL(sys_variable_schema)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("sys variable schema should not be null", K(ret), K(tenant_id)); } else if (FALSE_IT(schema_version = sys_variable_schema->get_schema_version())) { ret = OB_ERR_UNEXPECTED; } else if (schema_version > get_global_vars_version() && schema_version > OB_CORE_SCHEMA_VERSION) { const ObTenantSchema* tenant_info = NULL; bool need_update_version = false; const ObSysVariableSchema* sys_variable_schema = NULL; if (OB_FAIL(schema_guard.get_tenant_info(get_effective_tenant_id(), tenant_info))) { LOG_WARN("get tenant info from schema guard failed", K(ret)); } else if (OB_FAIL(schema_guard.get_sys_variable_schema(get_effective_tenant_id(), sys_variable_schema))) { if (OB_TENANT_NOT_EXIST == ret) { LOG_INFO("tenant maybe creating, just skip", K(ret), K(ret)); ret = OB_SUCCESS; } else { LOG_WARN("get sys variable schema failed", K(ret)); } } else if (OB_ISNULL(sys_variable_schema)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("sys variable schema is null", K(ret)); } else { for (int64_t i = 0; OB_SUCC(ret) && i < sys_variable_schema->get_sysvar_count(); ++i) { sysvar = sys_variable_schema->get_sysvar_schema(i); if (sysvar != NULL && sysvar->is_query_sensitive()) { if (OB_FAIL(update_sys_variable(sysvar->get_name(), sysvar->get_value()))) { if (OB_ERR_SYS_VARIABLE_UNKNOWN == ret) { // this system variable may come from a higher version, // which is not available locally, ignore it. ret = OB_SUCCESS; } else { LOG_WARN("update system variable failed", K(ret), K(*sysvar)); } } else { need_update_version = true; } } } if (OB_SUCC(ret) && need_update_version) { set_global_vars_version(schema_version); } } } return ret; } // used for bootstrap, in which we can not get system variables from inner table. int ObBasicSessionInfo::load_default_sys_variable(const bool print_info_log, const bool is_sys_tenant) { int ret = OB_SUCCESS; if (OB_FAIL(init_system_variables(print_info_log, is_sys_tenant))) { LOG_WARN("Init system variables failed !", K(ret)); } else { variables_last_modify_time_ = ObTimeUtility::current_time(); } return ret; } // used for session deserialization from lower version observer, // and some system variables may be supported in current version. int ObBasicSessionInfo::load_default_sys_variable(int64_t var_idx) { int ret = OB_SUCCESS; ObString name; ObObj type; ObObj value; ObObj min_val; ObObj max_val; ObObjType var_type = ObNullType; int64_t var_flag = ObSysVarFlag::NONE; if (var_idx < 0 || var_idx >= ObSysVarFactory::ALL_SYS_VARS_COUNT) { ret = OB_ERR_UNEXPECTED; LOG_WARN("the value of var_idx is unexpected", K(ret)); } else { name.assign_ptr(const_cast(ObSysVariables::get_name(var_idx).ptr()), static_cast(strlen(ObSysVariables::get_name(var_idx).ptr()))); var_type = ObSysVariables::get_type(var_idx); var_flag = ObSysVariables::get_flags(var_idx); value.set_varchar(ObSysVariables::get_value(var_idx)); value.set_collation_type(ObCharset::get_system_collation()); min_val.set_varchar(ObSysVariables::get_min(var_idx)); min_val.set_collation_type(ObCharset::get_system_collation()); max_val.set_varchar(ObSysVariables::get_max(var_idx)); max_val.set_collation_type(ObCharset::get_system_collation()); type.set_type(var_type); if (OB_FAIL(load_sys_variable(name, type, value, min_val, max_val, var_flag))) { LOG_WARN("fail to load default system variable", K(name), K(ret)); } } return ret; } int ObBasicSessionInfo::process_variable_for_tenant(const ObString& var, ObObj& val) { int ret = OB_SUCCESS; if (0 == var.compare(OB_SV_LOWER_CASE_TABLE_NAMES)) { val.set_varchar("2"); val.set_collation_type(ObCharset::get_system_collation()); } return ret; } int ObBasicSessionInfo::create_sys_var(ObSysVarClassType sys_var_id, int64_t store_idx, ObBasicSysVar*& sys_var) { int ret = OB_SUCCESS; OV(0 <= store_idx && store_idx < ObSysVarFactory::ALL_SYS_VARS_COUNT, OB_ERR_UNEXPECTED, sys_var_id, store_idx); if (OB_NOT_NULL(sys_vars_[store_idx])) { OV(sys_vars_[store_idx]->get_type() == sys_var_id, OB_ERR_UNEXPECTED, sys_var_id, store_idx, sys_vars_[store_idx]->get_type()); OX(sys_var = sys_vars_[store_idx]); } else { OZ(sys_var_fac_.create_sys_var(sys_var_id, sys_var), sys_var_id); OV(OB_NOT_NULL(sys_var), OB_ERR_UNEXPECTED, sys_var_id, store_idx); OX(sys_vars_[store_idx] = sys_var); } return ret; } int ObBasicSessionInfo::inner_get_sys_var(const ObString& sys_var_name, ObBasicSysVar*& sys_var) const { int ret = OB_SUCCESS; ObSysVarClassType sys_var_id = SYS_VAR_INVALID; int64_t store_idx = -1; if (OB_UNLIKELY(SYS_VAR_INVALID == (sys_var_id = ObSysVarFactory::find_sys_var_id_by_name(sys_var_name)))) { ret = OB_ERR_SYS_VARIABLE_UNKNOWN; LOG_WARN("fail to find sys var id by name", K(ret), K(sys_var_name), K(lbt())); } else if (OB_FAIL(ObSysVarFactory::calc_sys_var_store_idx(sys_var_id, store_idx))) { LOG_WARN("fail to calc sys var store idx", K(ret), K(sys_var_id), K(sys_var_name), K(lbt())); } else if (OB_UNLIKELY(store_idx < 0) || OB_UNLIKELY(store_idx >= ObSysVarFactory::ALL_SYS_VARS_COUNT)) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("got store_idx is invalid", K(ret), K(store_idx)); } else if (OB_ISNULL(sys_vars_[store_idx])) { ret = OB_ENTRY_NOT_EXIST; LOG_WARN("sys var is NULL", K(ret), K(store_idx), K(sys_var_name), K(lbt())); } else { sys_var = sys_vars_[store_idx]; } return ret; } int ObBasicSessionInfo::inner_get_sys_var(const ObSysVarClassType sys_var_id, ObBasicSysVar*& sys_var) const { int ret = OB_SUCCESS; int64_t store_idx = -1; if (OB_UNLIKELY(SYS_VAR_INVALID == sys_var_id)) { ret = OB_INVALID_ARGUMENT; LOG_ERROR("invalid sys var id", K(ret), K(sys_var_id), K(lbt())); } else if (OB_FAIL(ObSysVarFactory::calc_sys_var_store_idx(sys_var_id, store_idx))) { LOG_WARN("fail to calc sys var store idx", K(ret), K(sys_var_id), K(lbt())); } else if (OB_UNLIKELY(store_idx < 0) || OB_UNLIKELY(store_idx >= ObSysVarFactory::ALL_SYS_VARS_COUNT)) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("got store_idx is invalid", K(ret), K(store_idx)); } else if (OB_ISNULL(sys_vars_[store_idx])) { ret = OB_ENTRY_NOT_EXIST; LOG_WARN("sys var is NULL", K(ret), K(store_idx), K(lbt())); } else { sys_var = sys_vars_[store_idx]; } return ret; } int ObBasicSessionInfo::change_value_for_special_sys_var( const ObString& sys_var_name, const ObObj& ori_val, ObObj& new_val) { int ret = OB_SUCCESS; ObSysVarClassType sys_var_id = ObSysVarFactory::find_sys_var_id_by_name(sys_var_name); if (OB_UNLIKELY(SYS_VAR_INVALID == sys_var_id)) { LOG_WARN("fail to find sys var id by name", K(ret), K(sys_var_name)); } else if (OB_FAIL(ObBasicSessionInfo::change_value_for_special_sys_var(sys_var_id, ori_val, new_val))) { LOG_WARN("fail to change value for special sys var", K(ret), K(sys_var_name), K(sys_var_id), K(ori_val)); } return ret; } int ObBasicSessionInfo::change_value_for_special_sys_var( const ObSysVarClassType sys_var_id, const ObObj& ori_val, ObObj& new_val) { int ret = OB_SUCCESS; int64_t sys_var_store_idx = -1; if (SYS_VAR_VERSION_COMMENT == sys_var_id || SYS_VAR_VERSION == sys_var_id || SYS_VAR_SYSTEM_TIME_ZONE == sys_var_id) { if (OB_FAIL(ObSysVarFactory::calc_sys_var_store_idx(sys_var_id, sys_var_store_idx))) { LOG_WARN("fail to calc sys var store idx", K(ret), K(sys_var_id)); } else { new_val = ObSysVariables::get_default_value(sys_var_store_idx); } } else { new_val = ori_val; } return ret; } int ObBasicSessionInfo::load_sys_variable(const ObString& name, const ObObj& type, const ObObj& value, const ObObj& min_val, const ObObj& max_val, const int64_t flags, bool is_from_sys_table /*= false*/) { int ret = OB_SUCCESS; ObObj casted_cell; ObBasicSysVar* sys_var = NULL; ObSysVarClassType var_id = SYS_VAR_INVALID; ObObj real_val; ObObj val_ptr; ObObj min_ptr; ObObj max_ptr; ObObj val_type; ObObj tmp_type; int64_t store_idx = -1; if (SYS_VAR_INVALID == (var_id = ObSysVarFactory::find_sys_var_id_by_name(name, is_from_sys_table))) { if (is_from_sys_table) { ret = OB_SUCCESS; } else { ret = OB_ERR_SYS_VARIABLE_UNKNOWN; LOG_ERROR("failed to find system variable", K(ret), K(name)); } } else if (OB_FAIL(ObSysVarFactory::calc_sys_var_store_idx(var_id, store_idx))) { LOG_WARN("fail to calc sys var store idx", K(ret), K(var_id)); } else if (OB_FAIL(cast_sys_variable(false, var_id, type, value, flags, val_type, val_ptr))) { LOG_WARN("fail to cast system variable", K(var_id), K(type), K(value), K(flags), K(val_ptr), K(ret)); } else if (OB_FAIL(cast_sys_variable(true, var_id, type, min_val, flags, tmp_type, min_ptr))) { LOG_WARN("fail to cast system variable", K(var_id), K(type), K(min_val), K(flags), K(min_val), K(min_ptr), K(ret)); } else if (OB_FAIL(cast_sys_variable(true, var_id, type, max_val, flags, tmp_type, max_ptr))) { LOG_WARN("fail to cast system variable", K(var_id), K(type), K(max_val), K(flags), K(max_ptr), K(ret)); } else if (OB_FAIL(create_sys_var(var_id, store_idx, sys_var))) { LOG_WARN("fail to create sys var", K(name), K(value), K(ret)); } else if (OB_ISNULL(sys_var)) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("sys var is NULL", K(name), K(value), K(ret)); } else if (OB_FAIL(ObBasicSessionInfo::change_value_for_special_sys_var(var_id, val_ptr, real_val))) { LOG_WARN("fail to change value for special sys var", K(ret), K(var_id), K(val_ptr)); } else if (OB_FAIL(sys_var->init(real_val, min_ptr, max_ptr, val_type.get_type(), flags))) { LOG_WARN("fail to init sys var", K(ret), K(sys_var->get_type()), K(real_val), K(name), K(value)); } else if (OB_FAIL(process_session_variable(var_id, real_val, false, false /*check_timezone_valid*/))) { LOG_WARN("process system variable error", K(name), K(type), K(real_val), K(value), K(ret)); } else { variables_last_modify_time_ = ObTimeUtility::current_time(); } return ret; } int ObBasicSessionInfo::load_sys_variable(const ObString& name, const int64_t dtype, const ObString& value_str, const ObString& min_val_str, const ObString& max_val_str, const int64_t flags, bool is_from_sys_table /*= false*/) { int ret = OB_SUCCESS; ObObj value, min_val, max_val; ObObj otype; value.set_varchar(value_str); value.set_collation_type(ObCharset::get_system_collation()); min_val.set_varchar(min_val_str); min_val.set_collation_type(ObCharset::get_system_collation()); max_val.set_varchar(max_val_str); max_val.set_collation_type(ObCharset::get_system_collation()); otype.set_type(static_cast(dtype)); if (OB_FAIL(load_sys_variable(name, otype, value, min_val, max_val, flags, is_from_sys_table))) { LOG_WARN("fail to load system variable", K(name), K(otype), K(value), K(min_val), K(max_val), K(flags), K(is_from_sys_table), K(ret)); } return ret; } int ObBasicSessionInfo::cast_sys_variable(bool is_range_value, const ObSysVarClassType sys_var_id, const ObObj& type, const ObObj& value, int64_t flags, ObObj& out_type, ObObj& out_value) { UNUSED(sys_var_id); int ret = OB_SUCCESS; ObObj casted_cell; ObArenaAllocator calc_buf(ObModIds::OB_SQL_SESSION); if (ObVarcharType != value.get_type()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid type", K(value), K(ret)); } else { if (is_range_value && value.get_varchar() == ObString::make_string(ObBasicSysVar::EMPTY_STRING)) { out_value.set_null(); } else if (ObBasicSysVar::is_null_value(value.get_varchar(), flags)) { out_value.set_null(); } else { ObDataTypeCastParams dtc_params = get_dtc_params(); ObCastCtx cast_ctx(&calc_buf, &dtc_params, CM_NONE, ObCharset::get_system_collation()); if (OB_FAIL( ObObjCaster::to_type(type.get_type(), ObCharset::get_system_collation(), cast_ctx, value, casted_cell))) { _LOG_WARN("failed to cast object, cell=%s from_type=%s to_type=%s ret=%d ", to_cstring(value), ob_obj_type_str(value.get_type()), ob_obj_type_str(type.get_type()), ret); } else if (OB_FAIL(base_sys_var_alloc_.write_obj(casted_cell, &out_value))) { LOG_WARN("fail to store variable value", K(casted_cell), K(value), K(ret)); } else { if (ob_is_string_type(out_value.get_type())) { out_value.set_collation_level(CS_LEVEL_SYSCONST); if (CS_TYPE_INVALID == out_value.get_collation_type()) { out_value.set_collation_type(ObCharset::get_system_collation()); } } } } if (OB_SUCC(ret)) { out_type.set_type(type.get_type()); } } return ret; } bool sys_var_compare(const SysVarNameVal& left, const SysVarNameVal& right) { return left.name_ < right.name_; } /* *the following system variables affect plan cache: *read_only *ob_enable_transformation *binlog_row_image *collation_connection *sql_auto_is_null *div_precision_increment *ob_enable_aggregation_pushdown *ob_enable_index_direct_select *sql_mode *ob_max_parallel_degree *ob_route_policy *ob_read_consistency */ int ObBasicSessionInfo::get_influence_plan_sys_var(ObSysVarInPC& sys_vars) const { int ret = OB_SUCCESS; // get influence_plan_sys_var from sys_var_val_map int64_t index = 0; for (int64_t i = 0; OB_SUCC(ret) && i < get_influence_plan_var_count(); ++i) { index = influence_plan_var_indexs_.at(i); if (index >= ObSysVarFactory::ALL_SYS_VARS_COUNT) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("influence plan system var indexs out of range", K(i), K(ret)); } else if (NULL == sys_vars_[index]) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("influence plan system var is NULL", K(i), K(ret)); } else if (OB_FAIL(sys_vars.push_back(sys_vars_[index]->get_value()))) { ret = OB_ERR_UNEXPECTED; LOG_WARN("influence plan system variables push failed", K(ret)); } } return ret; } int ObBasicSessionInfo::gen_sys_var_in_pc_str() { int ret = OB_SUCCESS; const int64_t MAX_SYS_VARS_STR_SIZE = 1024; ObSysVarInPC sys_vars; char* buf = NULL; int64_t pos = 0; if (is_first_gen_) { if (NULL == (buf = (char*)name_pool_.alloc(MAX_SYS_VARS_STR_SIZE))) { ret = OB_ALLOCATE_MEMORY_FAILED; LOG_WARN("fail to allocator memory", K(ret), K(MAX_SYS_VARS_STR_SIZE)); } is_first_gen_ = false; } else { buf = sys_var_in_pc_str_.ptr(); MEMSET(buf, 0, sys_var_in_pc_str_.length()); sys_var_in_pc_str_.reset(); } if (OB_FAIL(ret)) { } else if (OB_FAIL(get_influence_plan_sys_var(sys_vars))) { LOG_WARN("fail to get influence plan system variables", K(ret)); } else if (OB_FAIL(sys_vars.serialize_sys_vars(buf, MAX_SYS_VARS_STR_SIZE, pos))) { LOG_WARN("fail to serialize system vars"); } else { (void)sys_var_in_pc_str_.assign(buf, int32_t(pos)); } return ret; } int ObBasicSessionInfo::update_sys_variable_by_name(const ObString& var, const ObObj& val) { int ret = OB_SUCCESS; ObSysVarClassType var_id = SYS_VAR_INVALID; if (var.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid variable name", K(var), K(val), K(ret)); } else if (SYS_VAR_INVALID == (var_id = ObSysVarFactory::find_sys_var_id_by_name(var))) { ret = OB_ERR_SYS_VARIABLE_UNKNOWN; LOG_WARN("unknown variable", K(var), K(val), K(ret)); } else if (OB_FAIL(update_sys_variable(var_id, val))) { LOG_WARN("failed to update sys variable", K(var), K(val), K(ret)); } else { } return ret; } int ObBasicSessionInfo::update_sys_variable_by_name(const common::ObString& var, int64_t val) { ObObj obj; obj.set_int(val); return update_sys_variable_by_name(var, obj); } int ObBasicSessionInfo::update_sys_variable(const ObSysVarClassType sys_var_id, const ObString& val) { ObObj obj; obj.set_varchar(val); obj.set_collation_type(ObCharset::get_system_collation()); return update_sys_variable(sys_var_id, obj); } int ObBasicSessionInfo::update_sys_variable(const ObSysVarClassType sys_var_id, const int64_t val) { ObObj obj; obj.set_int(val); return update_sys_variable(sys_var_id, obj); } int ObBasicSessionInfo::update_sys_variable(const ObString& var, const ObString& val) { int ret = OB_SUCCESS; ObSysVarClassType sys_var_id = SYS_VAR_INVALID; ObBasicSysVar* sys_var = NULL; if (OB_UNLIKELY(SYS_VAR_INVALID == (sys_var_id = ObSysVarFactory::find_sys_var_id_by_name(var)))) { ret = OB_ERR_SYS_VARIABLE_UNKNOWN; LOG_WARN("unknown variable", K(var), K(val), K(ret)); } else if (OB_FAIL(inner_get_sys_var(sys_var_id, sys_var))) { LOG_WARN("fail to inner get sys var", K(ret), K(var), K(val)); } else if (OB_ISNULL(sys_var)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("succ to inner get sys var, but sys var is NULL", K(ret), K(var)); } else { // trim quotation marks ObString tmp_val; if (val.length() > 1 && (('\'' == val[0] && '\'' == val[val.length() - 1]) || ('\"' == val[0] && '\"' == val[val.length() - 1]))) { tmp_val.assign_ptr(val.ptr() + 1, val.length() - 2); } else { tmp_val.assign_ptr(val.ptr(), val.length()); } ObObj in_obj; in_obj.set_varchar(tmp_val); in_obj.set_collation_type(ObCharset::get_system_collation()); const ObObj* out_obj = NULL; ObObj buf_obj; ObArenaAllocator calc_buf(ObModIds::OB_SQL_SESSION); ObDataTypeCastParams dtc_params = get_dtc_params(); ObCastCtx cast_ctx(&calc_buf, &dtc_params, CM_NONE, ObCharset::get_system_collation()); if (OB_FAIL(ObObjCaster::to_type(sys_var->get_data_type(), cast_ctx, in_obj, buf_obj, out_obj))) { LOG_WARN("failed to cast obj", "expected type", sys_var->get_meta_type(), K(ret), K(var), K(in_obj)); } else if (OB_ISNULL(out_obj)) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("casted success, but out_obj is NULL", K(in_obj), K(ret)); } else if (OB_FAIL(update_sys_variable(sys_var_id, *out_obj))) { LOG_WARN("fail to update sys variable", K(ret), K(var), K(*out_obj)); } } return ret; } int ObBasicSessionInfo::update_sys_variable(const ObSysVarClassType sys_var_id, const ObObj& val) { int ret = OB_SUCCESS; ObObj obj; ObBasicSysVar* sys_var = NULL; if (SYS_VAR_INVALID == sys_var_id) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid sys_var_id", K(sys_var_id), K(ret)); } else if (OB_FAIL(inner_get_sys_var(sys_var_id, sys_var))) { LOG_WARN("failed to inner get sys var", K(ret), K(sys_var_id), K(val)); } else if (OB_ISNULL(sys_var)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("failed to inner get sys var, sys var is null", K(ret), K(sys_var_id), K(val)); } else if (is_track_session_info()) { if (OB_FAIL(track_sys_var(sys_var_id, sys_var->get_value()))) { LOG_WARN("failed to track sys var", K(ret), K(sys_var_id), K(val)); } else { variables_last_modify_time_ = ObTimeUtility::current_time(); LOG_DEBUG("succ to track system variable", K(ret), K(sys_var_id), K(val), K(sys_var->get_value())); } } if (OB_SUCC(ret)) { if (OB_FAIL(deep_copy_sys_variable(sys_var_id, val, &obj))) { LOG_WARN("fail to update system variable", K(sys_var_id), K(val), K(ret)); } } if (OB_SUCC(ret)) { if (OB_FAIL(process_session_variable(sys_var_id, val, true, false /*check_timezone_valid*/))) { LOG_WARN("process system variable error", K(sys_var_id), K(val), K(ret)); } else if (OB_FAIL(sys_var_inc_info_.add_sys_var_id(sys_var_id))) { LOG_WARN("add sys var id error", K(sys_var_id), K(ret)); } else { if (SYS_VAR_TIME_ZONE == sys_var_id && !tz_info_wrap_.is_position_class()) { const int64_t buf_len = 16; char tmp_buf[buf_len] = {0}; int64_t pos = 0; ObObj tmp_obj = val; if (OB_ISNULL(tz_info_wrap_.get_time_zone_info())) { ret = OB_ERR_UNEXPECTED; LOG_WARN("time zone info is null", K(ret)); } else if (OB_FAIL(tz_info_wrap_.get_time_zone_info()->timezone_to_str(tmp_buf, buf_len, pos))) { LOG_WARN("timezone to str failed", K(ret)); } else { tmp_obj.set_common_value(ObString(pos, tmp_buf)); if (OB_FAIL(deep_copy_sys_variable(sys_var_id, tmp_obj, &obj))) { LOG_WARN("deep copy sys var failed", K(ret)); } } } if (OB_SUCC(ret)) { if (ob_is_string_type(obj.get_type())) { obj.set_collation_level(CS_LEVEL_SYSCONST); if (CS_TYPE_INVALID == obj.get_collation_type()) { obj.set_collation_type(ObCharset::get_default_collation(ObCharset::get_default_charset())); } } sys_var->set_value(obj); } } } if (OB_SUCC(ret) && !is_deserialized_ && sys_var->is_influence_plan() && OB_FAIL(gen_sys_var_in_pc_str())) { LOG_ERROR("fail to gen sys var in pc str", K(ret)); } return ret; } int ObBasicSessionInfo::deep_copy_trace_id_var(const ObObj& src_val, ObObj* dest_val_ptr) { int ret = OB_SUCCESS; if (OB_ISNULL(dest_val_ptr)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("dest val ptr is NULL", K(ret)); } else { *dest_val_ptr = src_val; ObString new_str; ObString src_str; const int64_t STR_BUFF_LEN = sizeof(trace_id_buff_); int64_t src_str_len = 0; if (OB_FAIL(src_val.get_varchar(src_str))) { LOG_WARN("fail to get varchar", K(src_val), K(ret)); } else if (OB_UNLIKELY((src_str_len = src_str.length()) == 0)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("invalid string", K(src_str), K(ret)); } else if (STR_BUFF_LEN <= src_str_len) { ret = OB_ERR_UNEXPECTED; LOG_WARN("invalid src str len", K(src_str_len), K(ret)); } else { MEMCPY(trace_id_buff_, src_str.ptr(), src_str_len); trace_id_buff_[src_str_len] = '\0'; new_str.assign_ptr(trace_id_buff_, static_cast(src_str_len)); dest_val_ptr->set_varchar(new_str); } } return ret; } // name_pool_ is an allocator that only alloc but not free, // now we optimize for trace_id only, which will be accessed frequently. int ObBasicSessionInfo::deep_copy_sys_variable( const ObSysVarClassType sys_var_id, const ObObj& src_val, ObObj* dest_val_ptr) { int ret = OB_SUCCESS; if (sys_var_id == SYS_VAR_OB_STATEMENT_TRACE_ID) { if (OB_FAIL(deep_copy_trace_id_var(src_val, dest_val_ptr))) { LOG_WARN("fail to deep copy trace id", K(ret)); } } else if (OB_FAIL(name_pool_.write_obj(src_val, dest_val_ptr))) { LOG_WARN("fail to write obj", K(src_val), K(ret)); } return ret; } int ObBasicSessionInfo::update_session_sys_variable(ObExecContext& ctx, const ObString& var, const ObObj& val) { int ret = OB_SUCCESS; ObBasicSysVar* sys_var = NULL; if (var.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid variable name", K(ret), K(var)); } else if (OB_FAIL(inner_get_sys_var(var, sys_var))) { LOG_WARN("fail to inner get sys var", K(ret), K(var), K(val)); } else if (OB_ISNULL(sys_var)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("succ to inner get sys var, but sys var is NULL", K(ret), K(var), K(val)); } else { ObMySQLProxy sql_proxy; ObSetVar set_var(var, ObSetVar::SET_SCOPE_SESSION, false, OB_INVALID_ID, ctx.get_allocator(), sql_proxy); if (OB_FAIL(sys_var->session_update(ctx, set_var, val))) { LOG_WARN("session update system variable failed", K(ret), K(set_var)); } else if (OB_FAIL(sys_var->update(ctx, set_var, val))) { LOG_WARN("fail to update sys var", K(ret), K(var), K(val)); } } return ret; } int ObBasicSessionInfo::get_sys_variable_by_name(const ObString& var, ObBasicSysVar*& val) const { int ret = OB_SUCCESS; if (OB_UNLIKELY(var.empty())) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid variable name", K(var), K(ret)); } else if (OB_FAIL(inner_get_sys_var(var, val))) { LOG_WARN("fail to inner get sys var", K(var), K(ret)); } else if (OB_ISNULL(val)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("succ to inner get sys var, but sys var is NULL", K(ret), K(var)); } else { } return ret; } int ObBasicSessionInfo::get_sys_variable_by_name(const ObString& var, ObObj& val) const { int ret = OB_SUCCESS; ObBasicSysVar* sys_var = NULL; if (OB_UNLIKELY(var.empty())) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid variable name", K(var), K(ret)); } else if (OB_FAIL(inner_get_sys_var(var, sys_var))) { LOG_WARN("fail to get sys var", K(ret), K(var)); } else if (OB_ISNULL(sys_var)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("succ to get sys var, but sys var is NULL", K(ret), K(var)); } else { val = sys_var->get_value(); } return ret; } int ObBasicSessionInfo::get_sys_variable_by_name(const common::ObString& var, int64_t& val) const { int ret = OB_SUCCESS; ObObj obj; if (OB_FAIL(get_sys_variable_by_name(var, obj))) { } else if (OB_FAIL(obj.get_int(val))) { LOG_WARN("wrong obj type for system variable", K(var), K(obj), K(ret)); } else { } return ret; } int ObBasicSessionInfo::get_sys_variable(const ObSysVarClassType sys_var_id, common::ObObj& val) const { int ret = OB_SUCCESS; ObBasicSysVar* var = NULL; if (OB_UNLIKELY(SYS_VAR_INVALID == sys_var_id)) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid sys_var_id", K(ret), K(sys_var_id)); } else if (OB_FAIL(inner_get_sys_var(sys_var_id, var))) { LOG_WARN("fail to get sys var", K(ret), K(var)); } else if (OB_ISNULL(var)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("succ to get sys var, but sys var is NULL", K(ret), K(var)); } else { val = var->get_value(); } return ret; } int ObBasicSessionInfo::get_sys_variable(const ObSysVarClassType sys_var_id, common::ObString& val) const { int ret = OB_SUCCESS; ObObj obj; if (SYS_VAR_INVALID == sys_var_id) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid sys_var_id", K(sys_var_id), K(ret)); } else if (OB_FAIL(get_sys_variable(sys_var_id, obj))) { LOG_WARN("failed to get system variable", K(sys_var_id), K(ret)); } else if (OB_FAIL(obj.get_varchar(val))) { LOG_WARN("wrong obj type for system variable", K(sys_var_id), K(obj), K(ret)); } else { } return ret; } int ObBasicSessionInfo::get_sys_variable(const ObSysVarClassType sys_var_id, int64_t& val) const { int ret = OB_SUCCESS; ObObj obj; if (OB_FAIL(get_sys_variable(sys_var_id, obj))) { LOG_WARN("failed to get system variable", K(sys_var_id), K(obj), K(ret)); } else if (OB_FAIL(obj.get_int(val))) { LOG_WARN("wrong obj type for system variable", K(sys_var_id), K(obj), K(ret)); } else { } return ret; } int ObBasicSessionInfo::get_sys_variable(const ObSysVarClassType sys_var_id, uint64_t& val) const { int ret = OB_SUCCESS; ObObj obj; if (OB_FAIL(get_sys_variable(sys_var_id, obj))) { LOG_WARN("failed to get system variable", K(sys_var_id), K(obj), K(ret)); } else if (OB_FAIL(obj.get_uint64(val))) { LOG_WARN("wrong obj type for system variable", K(ret), K(sys_var_id), K(obj)); } else { } return ret; } int ObBasicSessionInfo::sys_variable_exists(const ObString& var, bool& is_exists) const { int ret = OB_SUCCESS; is_exists = false; ObSysVarClassType sys_var_id = SYS_VAR_INVALID; int64_t store_idx = -1; if (SYS_VAR_INVALID == (sys_var_id = ObSysVarFactory::find_sys_var_id_by_name(var))) { LOG_DEBUG("sys var is not exist", K(var), K(ret)); } else if (OB_FAIL(ObSysVarFactory::calc_sys_var_store_idx(sys_var_id, store_idx))) { LOG_WARN("fail to calc sys var store idx", K(sys_var_id), K(var), K(ret)); } else if (store_idx < 0 || store_idx >= ObSysVarFactory::ALL_SYS_VARS_COUNT) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("got store_idx is invalid", K(store_idx), K(ret)); } else { is_exists = (NULL != sys_vars_[store_idx]); } return ret; } ObPhysicalPlan* ObBasicSessionInfo::get_cur_phy_plan() const { return cur_phy_plan_; } int ObBasicSessionInfo::set_cur_phy_plan(ObPhysicalPlan* cur_phy_plan) { int ret = OB_SUCCESS; if (OB_ISNULL(cur_phy_plan)) { ret = OB_INVALID_ARGUMENT; LOG_WARN("current physical plan is NULL", K(lbt()), K(ret)); } else { cur_phy_plan_ = cur_phy_plan; } return ret; } void ObBasicSessionInfo::reset_cur_phy_plan_to_null() { cur_phy_plan_ = NULL; } ObObjType ObBasicSessionInfo::get_sys_variable_type(const ObString& var_name) const { int ret = OB_SUCCESS; ObObjType obj_type = ObMaxType; ObBasicSysVar* val = NULL; if (OB_FAIL(inner_get_sys_var(var_name, val))) { LOG_WARN("fail to inner get sys var", K(ret), K(var_name)); } else if (OB_ISNULL(val)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("succ to inner get sys var, but sys var is NULL", K(ret), K(var_name)); } else { obj_type = val->get_data_type(); } return obj_type; } ObObjType ObBasicSessionInfo::get_sys_variable_meta_type(const ObString& var_name) const { int ret = OB_SUCCESS; ObObjType obj_type = ObMaxType; ObBasicSysVar* val = NULL; if (OB_FAIL(inner_get_sys_var(var_name, val))) { LOG_WARN("fail to inner get sys var", K(ret), K(var_name)); } else if (OB_ISNULL(val)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("succ to inner get sys var, but sys var is NULL", K(ret), K(var_name)); } else { obj_type = val->get_meta_type(); } return obj_type; } #define PROCESS_SESSION_INT_VARIABLE(sys_var) \ do { \ ObArenaAllocator allocator(ObModIds::OB_SQL_SESSION); \ int64_t val_int = 0; \ ObCastCtx cast_ctx(&allocator, NULL, CM_NONE, CS_TYPE_INVALID); \ EXPR_GET_INT64_V2(val, val_int); \ if (OB_SUCC(ret)) { \ sys_var = val_int; \ } \ } while (0) OB_INLINE int ObBasicSessionInfo::process_session_variable( ObSysVarClassType var, const ObObj& val, bool is_inc, const bool check_timezone_valid /*true*/) { int ret = OB_SUCCESS; switch (var) { case SYS_VAR_OB_LOG_LEVEL: { OZ(process_session_log_level(val), val); break; } case SYS_VAR_OB_COMPATIBILITY_MODE: { OZ(process_session_compatibility_mode_value(val, is_inc), val); break; } case SYS_VAR_SQL_MODE: { OZ(process_session_sql_mode_value(val, is_inc), val); break; } case SYS_VAR_TIME_ZONE: { OZ(process_session_time_zone_value(val, check_timezone_valid)); break; } case SYS_VAR_ERROR_ON_OVERLAP_TIME: { OZ(process_session_overlap_time_value(val)); break; } case SYS_VAR_WAIT_TIMEOUT: { LockGuard lock_guard(thread_data_mutex_); PROCESS_SESSION_INT_VARIABLE(thread_data_.wait_timeout_); break; } case SYS_VAR_DEBUG_SYNC: { const bool is_global = false; ret = process_session_debug_sync(val, is_global); break; } case SYS_VAR_OB_GLOBAL_DEBUG_SYNC: { const bool is_global = true; ret = process_session_debug_sync(val, is_global); break; } case SYS_VAR_OB_READ_CONSISTENCY: { int64_t consistency = 0; PROCESS_SESSION_INT_VARIABLE(consistency); if (OB_SUCC(ret)) { consistency_level_ = static_cast(consistency); } break; } case SYS_VAR_AUTO_INCREMENT_INCREMENT: { uint64_t uint_val = 0; OZ(val.get_uint64(uint_val), val); OX(sys_vars_cache_.set_auto_increment_increment(uint_val, is_inc)); break; } case SYS_VAR_SQL_THROTTLE_CURRENT_PRIORITY: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_sql_throttle_current_priority(int_val, is_inc)); break; } case SYS_VAR_OB_LAST_SCHEMA_VERSION: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_ob_last_schema_version(int_val, is_inc)); break; } case SYS_VAR_SQL_SELECT_LIMIT: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_sql_select_limit(int_val, is_inc)); break; } case SYS_VAR_AUTO_INCREMENT_OFFSET: { uint64_t uint_val = 0; OZ(val.get_uint64(uint_val), val); OX(sys_vars_cache_.set_auto_increment_offset(uint_val, is_inc)); break; } case SYS_VAR_LAST_INSERT_ID: { uint64_t uint_val = 0; OZ(val.get_uint64(uint_val), val); OX(sys_vars_cache_.set_last_insert_id(uint_val, is_inc)); break; } case SYS_VAR_BINLOG_ROW_IMAGE: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_binlog_row_image(int_val, is_inc)); break; } case SYS_VAR_FOREIGN_KEY_CHECKS: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_foreign_key_checks(int_val, is_inc)); break; } case SYS_VAR_TX_ISOLATION: { ObString str_val; int32_t isolation = ObTransIsolation::UNKNOWN; OZ(val.get_string(str_val)); OX(isolation = ObTransIsolation::get_level(str_val)); OV(isolation != ObTransIsolation::UNKNOWN, OB_ERR_UNEXPECTED, isolation); OX(sys_vars_cache_.set_tx_isolation(isolation, is_inc)); break; } case SYS_VAR_TX_READ_ONLY: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_tx_read_only(int_val != 0, is_inc)); break; } case SYS_VAR_OB_ENABLE_PLAN_CACHE: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_ob_enable_plan_cache(int_val != 0, is_inc)); break; } case SYS_VAR_OPTIMIZER_USE_SQL_PLAN_BASELINES: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_optimizer_use_sql_plan_baselines(int_val != 0, is_inc)); break; } case SYS_VAR_OPTIMIZER_CAPTURE_SQL_PLAN_BASELINES: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_optimizer_capture_sql_plan_baselines(int_val != 0, is_inc)); break; } case SYS_VAR_IS_RESULT_ACCURATE: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_is_result_accurate(int_val != 0, is_inc)); break; } case SYS_VAR__OB_USE_PARALLEL_EXECUTION: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set__ob_use_parallel_execution(int_val != 0, is_inc)); break; } case SYS_VAR__OPTIMIZER_ADAPTIVE_CURSOR_SHARING: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set__optimizer_adaptive_cursor_sharing(int_val != 0, is_inc)); break; } case SYS_VAR_CHARACTER_SET_RESULTS: { int64_t coll_int64 = 0; if (val.is_null()) { OX(sys_vars_cache_.set_character_set_results(CHARSET_INVALID, is_inc)); } else if (OB_FAIL(val.get_int(coll_int64))) { LOG_WARN("fail to get int from value", K(val), K(ret)); } else if (OB_UNLIKELY(false == ObCharset::is_valid_collation(coll_int64))) { // do not set error code. LOG_WARN("invalid collation", K(coll_int64), K(val)); OX(sys_vars_cache_.set_character_set_results(CHARSET_INVALID, is_inc)); } else { OX(sys_vars_cache_.set_character_set_results( ObCharset::charset_type_by_coll(static_cast(coll_int64)), is_inc)); } break; } case SYS_VAR_OB_ENABLE_SQL_AUDIT: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_ob_enable_sql_audit(int_val != 0, is_inc)); break; } case SYS_VAR_NLS_LENGTH_SEMANTICS: { ObString str_val; ObLengthSemantics nls_length_semantics = LS_BYTE; OZ(val.get_string(str_val)); OX(nls_length_semantics = get_length_semantics(str_val)); OV(nls_length_semantics != LS_INVALIED, OB_ERR_UNEXPECTED, nls_length_semantics); OX(sys_vars_cache_.set_nls_length_semantics(nls_length_semantics, is_inc)); break; } case SYS_VAR_AUTOCOMMIT: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_autocommit(int_val != 0, is_inc)); break; } case SYS_VAR_OB_ENABLE_TRACE_LOG: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_ob_enable_trace_log(int_val != 0, is_inc)); break; } case SYS_VAR_OB_ORG_CLUSTER_ID: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_ob_org_cluster_id(int_val, is_inc)); break; } case SYS_VAR_OB_QUERY_TIMEOUT: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_ob_query_timeout(int_val, is_inc)); break; } case SYS_VAR_OB_PL_BLOCK_TIMEOUT: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_ob_pl_block_timeout(int_val, is_inc)); break; } case SYS_VAR_OB_TRX_TIMEOUT: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_ob_trx_timeout(int_val, is_inc)); break; } case SYS_VAR_OB_TRX_IDLE_TIMEOUT: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_ob_trx_idle_timeout(int_val, is_inc)); break; } case SYS_VAR_OB_TRX_LOCK_TIMEOUT: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_ob_trx_lock_timeout(int_val, is_inc)); break; } case SYS_VAR_COLLATION_CONNECTION: { int64_t int_val = 0; OZ(val.get_int(int_val), val); OX(sys_vars_cache_.set_collation_connection(int_val, is_inc)); break; } case SYS_VAR_TIMESTAMP: { // the unit of set timestamp operation is second, // but we store it in microsecond, after a round operation. if (val.get_number().is_zero()) { sys_vars_cache_.set_timestamp(0, is_inc); } else { const ObObj* res_obj = NULL; ObArenaAllocator allocator(common::ObModIds::OB_SQL_EXPR_CALC); number::ObNumber value; number::ObNumber unit; if (OB_FAIL(unit.from(static_cast(USECS_PER_SEC * 10), allocator))) { LOG_WARN("failed to get the number", K(ret)); } else if (OB_FAIL(val.get_number().mul(unit, value, allocator))) { LOG_WARN("failed to get the result of timestamp to microsecond", K(ret)); } else { ObObj param_obj; param_obj.set_number(value); ObCollationType cast_coll_type = static_cast(get_local_collation_connection()); // const ObDataTypeCastParams dtc_params(TZ_INFO(this), GET_NLS_FORMATS(this), get_nls_collation(), // get_nls_collation_nation());; ObDataTypeCastParams dtc_params = get_dtc_params(); ObCastCtx cast_ctx(&allocator, &dtc_params, 0, /*number_int useless*/ CM_NONE, cast_coll_type, NULL /* time zone info */); EXPR_CAST_OBJ_V2(ObIntType, param_obj, res_obj); if (OB_SUCC(ret)) { if (OB_ISNULL(res_obj)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("result obj is null"); } else { sys_vars_cache_.set_timestamp((res_obj->get_int() + 5) / 10, is_inc); } } else { LOG_WARN("failed to convert the number to int", K(ret)); } } } break; } case SYS_VAR_NLS_DATE_FORMAT: case SYS_VAR_NLS_TIMESTAMP_FORMAT: case SYS_VAR_NLS_TIMESTAMP_TZ_FORMAT: { ObString format; if (OB_FAIL(val.get_string(format))) { LOG_WARN("fail to get nls_date_format str value", K(ret), K(var)); } else { int64_t nls_enum = ObNLSFormatEnum::NLS_DATE; ObDTMode mode = DT_TYPE_DATETIME; if (SYS_VAR_NLS_TIMESTAMP_FORMAT == var) { mode |= DT_TYPE_ORACLE; nls_enum = ObNLSFormatEnum::NLS_TIMESTAMP; } else if (SYS_VAR_NLS_TIMESTAMP_TZ_FORMAT == var) { mode |= DT_TYPE_ORACLE; mode |= DT_TYPE_TIMEZONE; nls_enum = ObNLSFormatEnum::NLS_TIMESTAMP_TZ; } ObSEArray dfm_elems; ObBitSet elem_flags; // 1. parse and check semantic of format string if (OB_FAIL(ObDFMUtil::parse_datetime_format_string(format, dfm_elems))) { LOG_WARN("fail to parse oracle datetime format string", K(ret), K(format)); } else if (OB_FAIL(ObDFMUtil::check_semantic(dfm_elems, elem_flags, mode))) { LOG_WARN("check semantic of format string failed", K(ret), K(format)); } else { switch (nls_enum) { case ObNLSFormatEnum::NLS_DATE: sys_vars_cache_.set_nls_date_format(format, is_inc); break; case ObNLSFormatEnum::NLS_TIMESTAMP: sys_vars_cache_.set_nls_timestamp_format(format, is_inc); break; case ObNLSFormatEnum::NLS_TIMESTAMP_TZ: sys_vars_cache_.set_nls_timestamp_tz_format(format, is_inc); break; default: break; } } LOG_DEBUG("succ to set SYS_VAR_NLS_FORMAT", K(ret), K(var), K(nls_enum), K(format)); } break; } case SYS_VAR_NLS_NCHAR_CHARACTERSET: case SYS_VAR_NLS_CHARACTERSET: { ObString str_val; ObCharsetType charset = CHARSET_INVALID; ObCollationType collation = CS_TYPE_INVALID; OZ(val.get_string(str_val), val); OX(charset = ObCharset::charset_type_by_name_oracle(str_val)); OX(collation = ObCharset::get_default_collation_oracle(charset)); OV(ObCharset::is_valid_charset(charset) && ObCharset::is_valid_collation(collation), OB_ERR_INVALID_CHARACTER_STRING, str_val, charset, collation); if (var == SYS_VAR_NLS_CHARACTERSET) { OX(sys_vars_cache_.set_nls_collation(collation, is_inc)); } else { OX(sys_vars_cache_.set_nls_nation_collation(collation, is_inc)); } break; } case SYS_VAR_OB_TRACE_INFO: { ObString trace_info; if (OB_FAIL(val.get_string(trace_info))) { LOG_WARN("fail to get str value", K(ret), K(var)); } else { sys_vars_cache_.set_ob_trace_info(trace_info, is_inc); } break; } default: { // do nothing } } return ret; } int ObBasicSessionInfo::process_session_variable_fast() { int ret = OB_SUCCESS; int64_t store_idx = -1; // SYS_VAR_OB_LOG_LEVEL OZ(ObSysVarFactory::calc_sys_var_store_idx(SYS_VAR_OB_LOG_LEVEL, store_idx)); OV(ObSysVarFactory::is_valid_sys_var_store_idx(store_idx)); OZ(process_session_log_level(sys_vars_[store_idx]->get_value())); // SYS_VAR_DEBUG_SYNC OZ(ObSysVarFactory::calc_sys_var_store_idx(SYS_VAR_DEBUG_SYNC, store_idx)); OV(ObSysVarFactory::is_valid_sys_var_store_idx(store_idx)); OZ(process_session_debug_sync(sys_vars_[store_idx]->get_value(), false)); // SYS_VAR_OB_GLOBAL_DEBUG_SYNC OZ(ObSysVarFactory::calc_sys_var_store_idx(SYS_VAR_OB_GLOBAL_DEBUG_SYNC, store_idx)); OV(ObSysVarFactory::is_valid_sys_var_store_idx(store_idx)); OZ(process_session_debug_sync(sys_vars_[store_idx]->get_value(), true)); // SYS_VAR_OB_READ_CONSISTENCY OZ(ObSysVarFactory::calc_sys_var_store_idx(SYS_VAR_OB_READ_CONSISTENCY, store_idx)); OV(ObSysVarFactory::is_valid_sys_var_store_idx(store_idx)); if (OB_SUCC(ret)) { const ObObj& val = sys_vars_[store_idx]->get_value(); int64_t consistency = 0; PROCESS_SESSION_INT_VARIABLE(consistency); OX(consistency_level_ = static_cast(consistency)); } // SYS_VAR_WAIT_TIMEOUT { LockGuard lock_guard(thread_data_mutex_); get_int64_sys_var(SYS_VAR_WAIT_TIMEOUT, thread_data_.wait_timeout_); } return ret; } int ObBasicSessionInfo::process_session_sql_mode_value(const ObObj& value, bool is_inc) { int ret = OB_SUCCESS; ObSQLMode sql_mode = 0; if (value.is_string_type()) { const ObString& sql_mode_str = value.get_string(); if (OB_FAIL(ob_str_to_sql_mode(sql_mode_str, sql_mode))) { LOG_WARN("failed to get sql mode", K(sql_mode_str), K(value), K(ret)); } } else if (ObUInt64Type == value.get_type()) { sql_mode = value.get_uint64(); } else if (ObIntType == value.get_type()) { sql_mode = static_cast(value.get_int()); } else { ret = OB_ERR_UNEXPECTED; LOG_WARN("invalid sql mode val type", K(value.get_type()), K(value), K(ret)); } if (OB_FAIL(ret)) { } else if (!is_sql_mode_supported(sql_mode)) { ret = OB_NOT_SUPPORTED; LOG_USER_ERROR(OB_NOT_SUPPORTED, "Value for sql_mode"); LOG_WARN("invalid sql mode val", K(value.get_type()), K(value), K(ret)); } else { set_sql_mode(sql_mode, is_inc); } return ret; } int ObBasicSessionInfo::check_compatibility_mode() const { int ret = OB_SUCCESS; ObCompatibilityMode mode = get_compatibility_mode(); if (ORACLE_MODE == mode && is_oracle_mode()) { } else if (MYSQL_MODE == mode && is_mysql_mode()) { } else { // sometimes mode is OCEANBASE_MODE because mode is not assigned, we can accept that, // but at least they must be consistent in oracle mode. if (ORACLE_MODE == mode && !is_oracle_mode()) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("compatibility mode is not match", K(mode), K(is_oracle_mode()), K(lbt()), K(ret)); } } return ret; } int ObBasicSessionInfo::process_session_compatibility_mode_value(const ObObj& value, bool is_inc) { int ret = OB_SUCCESS; ObCompatibilityMode comp_mode = ObCompatibilityMode::OCEANBASE_MODE; if (value.is_string_type()) { const ObString& comp_mode_str = value.get_string(); if (comp_mode_str.case_compare("ORACLE")) { comp_mode = ObCompatibilityMode::ORACLE_MODE; } else if (comp_mode_str.case_compare("MYSQL")) { comp_mode = ObCompatibilityMode::MYSQL_MODE; } else { ret = OB_NOT_SUPPORTED; LOG_WARN("not supported sql mode", K(ret), K(value), K(comp_mode_str)); } } else if (ObUInt64Type == value.get_type()) { comp_mode = static_cast(value.get_uint64()); } else if (ObIntType == value.get_type()) { comp_mode = static_cast(value.get_int()); } else { ret = OB_ERR_UNEXPECTED; LOG_WARN("invalid sql mode val type", K(value.get_type()), K(value), K(ret)); } if (OB_SUCC(ret)) { set_compatibility_mode(comp_mode, is_inc); LOG_DEBUG("set compatibility mode", K(ret), K(comp_mode), K(value), K(get_compatibility_mode()), K(lbt())); } return ret; } int ObBasicSessionInfo::process_session_time_zone_value(const ObObj& value, const bool check_timezone_valid) { int ret = OB_SUCCESS; ObString str_val; const bool is_oralce_mode = is_oracle_compatible(); if (OB_FAIL(value.get_string(str_val))) { LOG_WARN("fail to get string value", K(value), K(ret)); } else if (OB_FAIL(set_time_zone(str_val, is_oralce_mode, check_timezone_valid))) { LOG_WARN("failed to set time zone", K(str_val), K(is_oralce_mode), "is_oracle_compatible", is_oracle_compatible(), K(ret)); } return ret; } int ObBasicSessionInfo::process_session_overlap_time_value(const ObObj& value) { int ret = OB_SUCCESS; if (OB_FAIL(tz_info_wrap_.set_error_on_overlap_time(value.get_bool()))) { LOG_WARN("fail to set error on overlap time", K(value), K(ret)); } return ret; } int ObBasicSessionInfo::process_session_log_level(const ObObj& val) { int ret = OB_SUCCESS; int32_t valid_length = 0; ObString val_str; if (OB_SUCC(val.get_varchar(val_str))) { if (0 == val_str.case_compare("disabled")) { log_id_level_map_valid_ = false; log_id_level_map_.reset_level(); } else if (OB_FAIL(OB_LOGGER.parse_set(val_str.ptr(), val_str.length(), valid_length, log_id_level_map_))) { LOG_WARN("Failed to parse set log_level", K(ret), "log_level", val_str); } else { log_id_level_map_valid_ = true; } } return ret; } int ObBasicSessionInfo::process_session_debug_sync(const ObObj& val, const bool is_global) { int ret = OB_SUCCESS; if (OB_SYS_TENANT_ID == tenant_id_ && GCONF.is_debug_sync_enabled()) { ObString debug_sync; if (OB_FAIL(val.get_varchar(debug_sync))) { LOG_WARN("varchar expected", K(ret)); } else { if (!debug_sync.empty()) { if (OB_FAIL(GDS.add_debug_sync(debug_sync, is_global, debug_sync_actions_))) { LOG_WARN("set debug sync string failed", K(debug_sync), K(ret)); } } } } return ret; } int ObBasicSessionInfo::get_int64_sys_var(const ObSysVarClassType sys_var_id, int64_t& int64_val) const { int ret = OB_SUCCESS; ObBasicSysVar* val = NULL; if (OB_FAIL(inner_get_sys_var(sys_var_id, val))) { LOG_WARN("fail to inner get sys var", K(ret), K(sys_var_id)); } else if (OB_ISNULL(val)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("succ to inner get sys var, but sys var is NULL", K(ret), K(sys_var_id)); } else { int64_t int_val = 0; if (OB_FAIL(val->get_value().get_int(int_val))) { LOG_WARN("fail to get int from value", K(*val), K(ret)); } else { int64_val = int_val; } } return ret; } int ObBasicSessionInfo::get_uint64_sys_var(const ObSysVarClassType sys_var_id, uint64_t& uint64_val) const { int ret = OB_SUCCESS; ObBasicSysVar* val = NULL; if (OB_FAIL(inner_get_sys_var(sys_var_id, val))) { LOG_WARN("fail to inner get sys var", K(ret), K(sys_var_id)); } else if (OB_ISNULL(val)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("succ to inner get sys var, but sys var is NULL", K(ret), K(sys_var_id)); } else { uint64_t uint_val = 0; if (OB_FAIL(val->get_value().get_uint64(uint_val))) { LOG_ERROR("fail to get uint64 from value", K(*val), K(ret)); } else { uint64_val = uint_val; } } return ret; } int ObBasicSessionInfo::get_bool_sys_var(const ObSysVarClassType sys_var_id, bool& bool_val) const { int ret = OB_SUCCESS; ObBasicSysVar* val = NULL; if (OB_FAIL(inner_get_sys_var(sys_var_id, val))) { LOG_WARN("fail to inner get sys var", K(ret), K(sys_var_id)); } else if (OB_ISNULL(val)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("succ to inner get sys var, but sys var is NULL", K(ret), K(sys_var_id)); } else { int64_t int_val = 0; if (OB_SUCCESS != (ret = val->get_value().get_int(int_val))) { LOG_ERROR("fail to get int from value", K(*val), K(ret)); } else { bool_val = (0 != int_val); } } return ret; } int ObBasicSessionInfo::get_charset_sys_var(const ObSysVarClassType sys_var_id, ObCharsetType& cs_type) const { int ret = OB_SUCCESS; ObBasicSysVar* val = NULL; if (OB_FAIL(inner_get_sys_var(sys_var_id, val))) { LOG_WARN("fail to inner get sys var", K(ret), K(sys_var_id)); } else if (OB_ISNULL(val)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("succ to inner get sys var, but sys var is NULL", K(ret), K(sys_var_id)); } else { int64_t coll_int64 = 0; if (val->get_value().is_null()) { cs_type = CHARSET_INVALID; } else if (OB_FAIL(val->get_value().get_int(coll_int64))) { LOG_ERROR("fail to get int from value", K(*val), K(ret)); } else if (OB_UNLIKELY(false == ObCharset::is_valid_collation(coll_int64))) { LOG_ERROR("invalid collation", K(sys_var_id), K(coll_int64), K(*val)); } else { cs_type = ObCharset::charset_type_by_coll(static_cast(coll_int64)); } } return ret; } int ObBasicSessionInfo::get_collation_sys_var(ObSysVarClassType sys_var_id, ObCollationType& coll_type) const { int ret = OB_SUCCESS; ObBasicSysVar* val = NULL; if (OB_FAIL(inner_get_sys_var(sys_var_id, val))) { LOG_WARN("fail to inner get sys var", K(ret), K(sys_var_id)); } else if (OB_ISNULL(val)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("succ to inner get sys var, but sys var is NULL", K(ret)); } else { int64_t coll_int64 = 0; if (OB_FAIL(val->get_value().get_int(coll_int64))) { LOG_ERROR("fail to get int from value", K(ret), K(*val)); } else if (OB_UNLIKELY(false == ObCharset::is_valid_collation(coll_int64))) { LOG_ERROR("invalid collation", K(sys_var_id), K(coll_int64), K(*val)); } else { coll_type = static_cast(coll_int64); } } return ret; } int ObBasicSessionInfo::get_string_sys_var(ObSysVarClassType sys_var_id, ObString& str) const { int ret = OB_SUCCESS; ObBasicSysVar* val = NULL; if (OB_FAIL(inner_get_sys_var(sys_var_id, val))) { LOG_WARN("fail to inner get sys var", K(ret), K(sys_var_id)); } else if (OB_ISNULL(val)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("succ to inner get says var, but sys var is NULL", K(ret)); } else { if (OB_FAIL(val->get_value().get_string(str))) { LOG_ERROR("fail to get int from value", K(ret), K(*val)); } } return ret; } int ObBasicSessionInfo::if_aggr_pushdown_allowed(bool& aggr_pushdown_allowed) const { return get_bool_sys_var(SYS_VAR_OB_ENABLE_AGGREGATION_PUSHDOWN, aggr_pushdown_allowed); } int ObBasicSessionInfo::is_use_trace_log(bool& use_trace_log) const { use_trace_log = sys_vars_cache_.get_ob_enable_trace_log(); return OB_SUCCESS; } int ObBasicSessionInfo::is_use_transmission_checksum(bool& use_transmission_checksum) const { return get_bool_sys_var(SYS_VAR_OB_ENABLE_TRANSMISSION_CHECKSUM, use_transmission_checksum); } int ObBasicSessionInfo::get_name_case_mode(ObNameCaseMode& case_mode) const { int ret = OB_SUCCESS; int64_t int64_val = -1; if (OB_FAIL(get_sys_variable(SYS_VAR_LOWER_CASE_TABLE_NAMES, int64_val))) { LOG_WARN("failed to load sys param", "var_name", OB_SV_LOWER_CASE_TABLE_NAMES, K(ret)); } else { int32_t value = static_cast(int64_val); if (value <= OB_NAME_CASE_INVALID || value >= OB_NAME_CASE_MAX) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("invalid value", "var_name", OB_SV_LOWER_CASE_TABLE_NAMES, K(value), K(ret)); } else { case_mode = static_cast(value); } } return ret; } int ObBasicSessionInfo::get_init_connect(ObString& str) const { return get_string_sys_var(SYS_VAR_INIT_CONNECT, str); } int ObBasicSessionInfo::is_transformation_enabled(bool& transformation_enabled) const { return get_bool_sys_var(SYS_VAR_OB_ENABLE_TRANSFORMATION, transformation_enabled); } int ObBasicSessionInfo::is_select_index_enabled(bool& select_index_enabled) const { return get_bool_sys_var(SYS_VAR_OB_ENABLE_INDEX_DIRECT_SELECT, select_index_enabled); } int ObBasicSessionInfo::is_create_table_strict_mode(bool& strict_mode) const { return get_bool_sys_var(SYS_VAR_OB_CREATE_TABLE_STRICT_MODE, strict_mode); } void ObBasicSessionInfo::set_autocommit(bool autocommit) { sys_vars_cache_.set_autocommit(autocommit, true); } int ObBasicSessionInfo::get_autocommit(bool& autocommit) const { autocommit = sys_vars_cache_.get_autocommit(); return OB_SUCCESS; } int ObBasicSessionInfo::get_explicit_defaults_for_timestamp(bool& explicit_defaults_for_timestamp) const { return get_bool_sys_var(SYS_VAR_EXPLICIT_DEFAULTS_FOR_TIMESTAMP, explicit_defaults_for_timestamp); } int ObBasicSessionInfo::get_sql_auto_is_null(bool& sql_auto_is_null) const { return get_bool_sys_var(SYS_VAR_SQL_AUTO_IS_NULL, sql_auto_is_null); } int ObBasicSessionInfo::get_is_result_accurate(bool& is_result_accurate) const { is_result_accurate = sys_vars_cache_.get_is_result_accurate(); return OB_SUCCESS; } int ObBasicSessionInfo::get_div_precision_increment(int64_t& div_precision_increment) const { int ret = get_int64_sys_var(SYS_VAR_DIV_PRECISION_INCREMENT, div_precision_increment); return ret; } int ObBasicSessionInfo::get_tx_timeout(int64_t& tx_timeout) const { tx_timeout = sys_vars_cache_.get_ob_trx_timeout(); return OB_SUCCESS; } int ObBasicSessionInfo::get_query_timeout(int64_t& query_timeout) const { query_timeout = sys_vars_cache_.get_ob_query_timeout(); return OB_SUCCESS; } int ObBasicSessionInfo::get_sql_throttle_current_priority(int64_t& sql_throttle_current_priority) { sql_throttle_current_priority = sys_vars_cache_.get_sql_throttle_current_priority(); return OB_SUCCESS; } int ObBasicSessionInfo::get_ob_last_schema_version(int64_t& ob_last_schema_version) { ob_last_schema_version = sys_vars_cache_.get_ob_last_schema_version(); return OB_SUCCESS; } int ObBasicSessionInfo::get_pl_block_timeout(int64_t& pl_block_timeout) const { pl_block_timeout = sys_vars_cache_.get_ob_pl_block_timeout(); return OB_SUCCESS; } int64_t ObBasicSessionInfo::get_trx_lock_timeout() const { return sys_vars_cache_.get_ob_trx_lock_timeout(); } int ObBasicSessionInfo::get_binlog_row_image(int64_t& binlog_row_image) const { binlog_row_image = sys_vars_cache_.get_binlog_row_image(); return OB_SUCCESS; } int ObBasicSessionInfo::get_ob_read_consistency(int64_t& ob_read_consistency) const { return get_int64_sys_var(SYS_VAR_OB_READ_CONSISTENCY, ob_read_consistency); } int ObBasicSessionInfo::get_sql_select_limit(int64_t& sql_select_limit) const { sql_select_limit = sys_vars_cache_.get_sql_select_limit(); return OB_SUCCESS; } int ObBasicSessionInfo::get_ob_stmt_parallel_degree(int64_t& ob_stmt_parallel_degree) const { return get_int64_sys_var(SYS_VAR_OB_STMT_PARALLEL_DEGREE, ob_stmt_parallel_degree); } int ObBasicSessionInfo::use_parallel_execution(bool& v) const { v = sys_vars_cache_.get__ob_use_parallel_execution(); return OB_SUCCESS; } int ObBasicSessionInfo::get_ob_stmt_parallel_degree_min_max( int64_t& min_ob_stmt_parallel_degree, int64_t& max_ob_stmt_parallel_degree) const { int ret = OB_SUCCESS; ObBasicSysVar* val = NULL; if (OB_FAIL(inner_get_sys_var(SYS_VAR_OB_STMT_PARALLEL_DEGREE, val))) { LOG_WARN("fail to inner get sys var", K(ret)); } else if (OB_ISNULL(val)) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("succ to inner get sys var, but sys var is NULL", K(ret)); } else if (OB_FAIL(val->get_min_val().get_int(min_ob_stmt_parallel_degree))) { LOG_WARN("fail to get int from value", K(*val), K(ret)); } else if (OB_FAIL(val->get_max_val().get_int(max_ob_stmt_parallel_degree))) { LOG_WARN("fail to get int from value", K(*val), K(ret)); } return ret; } int ObBasicSessionInfo::get_group_concat_max_len(uint64_t& group_concat_max_len) const { return get_uint64_sys_var(SYS_VAR_GROUP_CONCAT_MAX_LEN, group_concat_max_len); } int ObBasicSessionInfo::get_ob_interm_result_mem_limit(int64_t& ob_interm_result_mem_limit) const { return get_int64_sys_var(SYS_VAR_OB_INTERM_RESULT_MEM_LIMIT, ob_interm_result_mem_limit); } int ObBasicSessionInfo::get_ob_org_cluster_id(int64_t& ob_org_cluster_id) const { ob_org_cluster_id = sys_vars_cache_.get_ob_org_cluster_id(); return OB_SUCCESS; } int ObBasicSessionInfo::get_max_allowed_packet(int64_t& max_allowed_pkt) const { return get_int64_sys_var(SYS_VAR_MAX_ALLOWED_PACKET, max_allowed_pkt); } int ObBasicSessionInfo::get_net_buffer_length(int64_t& net_buffer_len) const { return get_int64_sys_var(SYS_VAR_NET_BUFFER_LENGTH, net_buffer_len); } //////////////////////////////////////////////////////////////// int ObBasicSessionInfo::replace_user_variables(const ObSessionValMap& user_var_map) { int ret = OB_SUCCESS; if (user_var_map.size() > 0) { const sql::ObSessionValMap::VarNameValMap& new_map = user_var_map.get_val_map(); for (sql::ObSessionValMap::VarNameValMap::const_iterator iter = new_map.begin(); OB_SUCC(ret) && iter != new_map.end(); iter++) { const common::ObString& key = iter->first; const sql::ObSessionVariable& value = iter->second; if (OB_FAIL(replace_user_variable(key, value))) { LOG_WARN("fail to replace user var", K(ret), K(key), K(value)); } } } return ret; } int ObBasicSessionInfo::replace_user_variable(const ObString& var, const ObSessionVariable& val) { int ret = OB_SUCCESS; if (var.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid var name", K(var), K(ret)); } else if (OB_FAIL(user_var_val_map_.set_refactored(var, val))) { LOG_ERROR("fail to add variable", K(var), K(ret)); } else { if (is_track_session_info()) { if (OB_FAIL(track_user_var(var))) { LOG_WARN("fail to track user var", K(var), K(ret)); } } if (OB_SUCC(ret)) { variables_last_modify_time_ = ObTimeUtility::current_time(); } } return ret; } int ObBasicSessionInfo::remove_user_variable(const ObString& var) { int ret = OB_SUCCESS; if (var.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid variable name", K(var), K(ret)); } else if (OB_SUCCESS != user_var_val_map_.erase_refactored(var)) { ret = OB_ERR_USER_VARIABLE_UNKNOWN; LOG_WARN("unknown variable", K(var), K(ret)); } else { variables_last_modify_time_ = ObTimeUtility::current_time(); } return ret; } int ObBasicSessionInfo::get_user_variable(const ObString& var, ObSessionVariable& val) const { int ret = OB_SUCCESS; if (var.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid variable name", K(var), K(ret)); } else if (OB_SUCCESS != user_var_val_map_.get_refactored(var, val)) { ret = OB_ERR_USER_VARIABLE_UNKNOWN; LOG_WARN("unknown user variable", K(var), K(ret)); } else { } return ret; } int ObBasicSessionInfo::get_user_variable_value(const ObString& var, common::ObObj& val) const { int ret = OB_SUCCESS; ObSessionVariable sess_var; if (var.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid variable name", K(var), K(ret)); } else if (OB_SUCCESS != user_var_val_map_.get_refactored(var, sess_var)) { ret = OB_ERR_USER_VARIABLE_UNKNOWN; LOG_WARN("unknown user variable", K(var), K(ret)); } else { val = sess_var.value_; } return ret; } int ObBasicSessionInfo::get_user_variable_meta(const ObString& var, ObObjMeta& meta) const { int ret = OB_SUCCESS; ObSessionVariable val; if (var.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid variable name", K(var), K(ret)); } else if (OB_SUCCESS != user_var_val_map_.get_refactored(var, val)) { ret = OB_ERR_USER_VARIABLE_UNKNOWN; LOG_WARN("unknown user variable", K(var), K(ret)); } else { meta = val.meta_; } return ret; } bool ObBasicSessionInfo::user_variable_exists(const ObString& var) const { ObSessionVariable val; bool exist = false; int ret = OB_SUCCESS; if (var.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid variable name", K(var), K(ret)); } else { exist = (OB_SUCCESS == user_var_val_map_.get_refactored(var, val)); } return exist; } const ObSessionVariable* ObBasicSessionInfo::get_user_variable(const common::ObString& var) const { const ObSessionVariable* sess_var = NULL; int ret = OB_SUCCESS; if (var.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid variable name", K(var), K(ret)); } else { sess_var = user_var_val_map_.get(var); } return sess_var; } const common::ObObj* ObBasicSessionInfo::get_user_variable_value(const ObString& var) const { const ObObj* val_obj = NULL; const ObSessionVariable* sess_var = NULL; int ret = OB_SUCCESS; if (var.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid variable name", K(var), K(ret)); } else if (NULL != (sess_var = user_var_val_map_.get(var))) { val_obj = &(sess_var->value_); } else { } // just return NULL return val_obj; } //////////////////////////////////////////////////////////////// int64_t ObBasicSessionInfo::to_string(char* buf, const int64_t buf_len) const { int64_t pos = 0; J_KV(N_TENANT, get_tenant_name(), N_EFFECTIVE_TENANT, get_effective_tenant_name(), N_DATABASE, get_database_name(), N_USER, (lib::is_oracle_mode() ? get_user_name() : get_user_at_host()), "consistency_level", consistency_level_, "consistency_type", trans_consistency_type_, "safe_weak_snapshot_version", safe_weak_read_snapshot_, "weak_read_snapshot_source", weak_read_snapshot_source_, "weak_read_snapshot_source_str", source_to_string(weak_read_snapshot_source_)); return pos; } int ObBasicSessionInfo::calc_need_serialize_vars( ObIArray& sys_var_ids, ObIArray& user_var_names, int64_t ser_version) const { int ret = OB_SUCCESS; sys_var_ids.reset(); user_var_names.reset(); if (ser_version == CUR_SER_VERSION) { if (OB_FAIL(sys_var_ids.assign(sys_var_inc_info_.get_all_sys_var_ids()))) { LOG_WARN("fail to assign ser_sys_var_ids", K(ret)); } } else { for (int64_t i = 0; OB_SUCC(ret) && i < ObSysVariables::get_all_sys_var_count(); ++i) { bool can_serialize = true; if (exec_min_cluster_version_ < CLUSTER_VERSION_2230) { can_serialize = true; } else { can_serialize = !(is_mysql_mode() && (ObSysVariables::get_flags(i) & ObSysVarFlag::ORACLE_ONLY)); } if (((ObSysVariables::get_flags(i) & ObSysVarFlag::NEED_SERIALIZE) || (ObSysVariables::get_flags(i) & ObSysVarFlag::QUERY_SENSITIVE)) && can_serialize) { if (OB_FAIL(sys_var_ids.push_back(ObSysVariables::get_sys_var_id(i)))) { LOG_WARN("fail to push back sys var id", K(i), K(ObSysVariables::get_sys_var_id(i)), K(sys_var_ids), K(ret)); } } } } CK(OB_NOT_NULL(cur_phy_plan_)); if (OB_SUCC(ret)) { // process user variables and system variables that need to be serialized for current query. const ObIArray& extra_serialize_vars = cur_phy_plan_->get_vars(); for (int64_t i = 0; OB_SUCC(ret) && i < extra_serialize_vars.count(); ++i) { const ObVarInfo& var_info = extra_serialize_vars.at(i); if (USER_VAR == var_info.type_) { if (OB_FAIL(user_var_names.push_back(var_info.name_))) { LOG_WARN("fail to push user var name", K(var_info), K(user_var_names), K(ret)); } } else if (SYS_VAR == var_info.type_) { ObSysVarClassType sys_var_id = ObSysVarFactory::find_sys_var_id_by_name(var_info.name_); if (SYS_VAR_INVALID == sys_var_id) { ret = OB_ERR_UNEXPECTED; LOG_WARN("invalid sys var id", K(sys_var_id), K(var_info), K(ret)); } else { bool sys_var_exist = false; for (int64_t j = 0; OB_SUCC(ret) && !sys_var_exist && j < sys_var_ids.count(); ++j) { if (sys_var_id == sys_var_ids.at(j)) { sys_var_exist = true; } } if (OB_SUCCESS == ret && !sys_var_exist) { if (OB_FAIL(sys_var_ids.push_back(sys_var_id))) { LOG_WARN("fail to push back sys var id", K(sys_var_id), K(var_info), K(sys_var_ids), K(ret)); } } } } else { ret = OB_ERR_UNEXPECTED; LOG_ERROR("invalid var info type", K(var_info.type_), K(var_info), K(ret)); } } } return ret; } OB_SERIALIZE_MEMBER(ObBasicSessionInfo::TableStmtType, table_id_, stmt_type_); OB_DEF_SERIALIZE(ObBasicSessionInfo::SysVarsCacheData) { int ret = OB_SUCCESS; LST_DO_CODE(OB_UNIS_ENCODE, autocommit_, ob_enable_trace_log_, ob_org_cluster_id_, ob_query_timeout_, ob_trx_timeout_, collation_connection_, sql_mode_, ob_trx_idle_timeout_, nls_collation_, nls_nation_collation_, ob_enable_sql_audit_, nls_length_semantics_, nls_formats_[NLS_DATE], nls_formats_[NLS_TIMESTAMP], nls_formats_[NLS_TIMESTAMP_TZ], ob_trx_lock_timeout_, ob_trace_info_); return ret; } OB_DEF_DESERIALIZE(ObBasicSessionInfo::SysVarsCacheData) { int ret = OB_SUCCESS; LST_DO_CODE(OB_UNIS_DECODE, autocommit_, ob_enable_trace_log_, ob_org_cluster_id_, ob_query_timeout_, ob_trx_timeout_, collation_connection_, sql_mode_, ob_trx_idle_timeout_, nls_collation_, nls_nation_collation_, ob_enable_sql_audit_, nls_length_semantics_, nls_formats_[NLS_DATE], nls_formats_[NLS_TIMESTAMP], nls_formats_[NLS_TIMESTAMP_TZ], ob_trx_lock_timeout_, ob_trace_info_); set_nls_date_format(nls_formats_[NLS_DATE]); set_nls_timestamp_format(nls_formats_[NLS_TIMESTAMP]); set_nls_timestamp_tz_format(nls_formats_[NLS_TIMESTAMP_TZ]); set_ob_trace_info(ob_trace_info_); return ret; } OB_DEF_SERIALIZE_SIZE(ObBasicSessionInfo::SysVarsCacheData) { int64_t len = 0; LST_DO_CODE(OB_UNIS_ADD_LEN, autocommit_, ob_enable_trace_log_, ob_org_cluster_id_, ob_query_timeout_, ob_trx_timeout_, collation_connection_, sql_mode_, ob_trx_idle_timeout_, nls_collation_, nls_nation_collation_, ob_enable_sql_audit_, nls_length_semantics_, nls_formats_[NLS_DATE], nls_formats_[NLS_TIMESTAMP], nls_formats_[NLS_TIMESTAMP_TZ], ob_trx_lock_timeout_, ob_trace_info_); return len; } int64_t ObBasicSessionInfo::get_ser_version(uint64_t tenant_id, uint64_t eff_tenant_id) const { return (GET_UNIS_CLUSTER_VERSION() < CLUSTER_VERSION_2250 || tenant_id == OB_SYS_TENANT_ID || eff_tenant_id == OB_SYS_TENANT_ID) ? PRE_SER_VERSION : CUR_SER_VERSION; } OB_DEF_SERIALIZE(ObBasicSessionInfo) { int ret = OB_SUCCESS; int64_t ser_version = get_ser_version(tenant_id_, effective_tenant_id_); ObTimeZoneInfo tmp_tz_info; // for compatibility with old version bool in_transaction = trans_flags_.is_in_transaction(); // To be compatible with old version which store sql_mode and compatibility mode in ObSQLModeManager; int64_t compatibility_mode_index = 0; if (OB_FAIL(compatibility_mode2index(get_compatibility_mode(), compatibility_mode_index))) { LOG_WARN("convert compatibility mode to index failed", K(ret)); } LST_DO_CODE(OB_UNIS_ENCODE, in_transaction, trans_desc_, consistency_level_, compatibility_mode_index, tmp_tz_info, // NOTE: rpc_tenant_id may cause compatability problem, // But only in diagnose tenant, so keep the stupid hack as it is. tenant_id_ | (rpc_tenant_id_ << 32), effective_tenant_id_, is_changed_to_temp_tenant_, user_id_, is_master_session() ? sessid_ : master_sessid_, capability_.capability_, thread_data_.database_name_); // serialize user variables and system variables. ObSEArray sys_var_ids; ObSEArray user_var_names; if (OB_FAIL(ret)) { } else if (OB_FAIL(calc_need_serialize_vars(sys_var_ids, user_var_names, ser_version))) { LOG_WARN("fail to calc need serialize vars", K(ret)); } else { ObSEArray, 32> actual_ser_user_vars; ObSessionVariable user_var_val; for (int64_t i = 0; OB_SUCC(ret) && i < user_var_names.count(); ++i) { user_var_val.reset(); const ObString& user_var_name = user_var_names.at(i); ret = user_var_val_map_.get_refactored(user_var_name, user_var_val); if (OB_SUCCESS != ret && OB_HASH_NOT_EXIST != ret) { LOG_WARN("fail to get user var from session user var map", K(i), K(user_var_name), K(user_var_val_map_.size()), K(ret)); } else { if (OB_SUCCESS == ret && OB_FAIL(actual_ser_user_vars.push_back(std::make_pair(user_var_name, user_var_val)))) { LOG_WARN("fail to push back pair(user_var_name, user_var_val)", K(buf_len), K(pos), K(user_var_name), K(user_var_val), K(ret)); } else { ret = OB_SUCCESS; } } } if (OB_SUCC(ret)) { if (OB_FAIL(serialization::encode(buf, buf_len, pos, actual_ser_user_vars.count()))) { LOG_WARN("fail to serialize user var count", K(ret), K(buf_len), K(pos), K(actual_ser_user_vars.count())); } else { for (int64_t i = 0; OB_SUCC(ret) && i < actual_ser_user_vars.count(); ++i) { const ObString& user_var_name = actual_ser_user_vars.at(i).first; const ObSessionVariable& user_var_val = actual_ser_user_vars.at(i).second; if (OB_FAIL(serialization::encode(buf, buf_len, pos, user_var_name))) { LOG_WARN("fail to serialize user var name", K(buf_len), K(pos), K(user_var_name), K(ret)); } else if (OB_FAIL(serialization::encode(buf, buf_len, pos, user_var_val.meta_))) { LOG_WARN("fail to serialize user var val meta", K(buf_len), K(pos), K(user_var_val.meta_), K(ret)); } else if (OB_FAIL(serialization::encode(buf, buf_len, pos, user_var_val.value_))) { LOG_WARN("fail to serialize user var val value", K(buf_len), K(pos), K(user_var_val.value_), K(ret)); } else { } } } } } if (OB_SUCC(ret)) { if (ser_version == CUR_SER_VERSION) { OB_UNIS_ENCODE(sys_var_base_version_); OB_UNIS_ENCODE(sys_var_inc_info_); } if (OB_FAIL(serialization::encode(buf, buf_len, pos, sys_var_ids.count()))) { LOG_WARN("fail to serialize sys var count", K(buf_len), K(pos), K(sys_var_ids.count()), K(ret)); } for (int64_t i = 0; OB_SUCC(ret) && i < sys_var_ids.count(); ++i) { int64_t sys_var_idx = -1; if (OB_FAIL(ObSysVarFactory::calc_sys_var_store_idx(sys_var_ids.at(i), sys_var_idx))) { LOG_WARN("fail to calc sys var store idx", K(i), K(sys_var_idx), K(sys_var_ids.at(i)), K(ret)); } else if (sys_var_idx < 0 || get_sys_var_count() <= sys_var_idx) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("sys var idx is invalid", K(sys_var_idx), K(get_sys_var_count()), K(ret)); } else if (OB_ISNULL(sys_vars_[sys_var_idx])) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("sys var is NULL", K(ret), K(sys_var_idx), K(get_sys_var_count())); } else { int16_t sys_var_id = static_cast(sys_vars_[sys_var_idx]->get_type()); if (OB_FAIL(serialization::encode(buf, buf_len, pos, sys_var_id))) { LOG_ERROR("fail to serialize sys var id", K(buf_len), K(pos), K(sys_var_id), K(ret)); } else if (OB_FAIL(sys_vars_[sys_var_idx]->serialize(buf, buf_len, pos))) { LOG_ERROR("fail to serialize sys var", K(buf_len), K(pos), K(i), K(sys_var_idx), K(*sys_vars_[sys_var_idx]), K(ret)); } } } } if (OB_FAIL(ret)) { LOG_WARN("fail to encode session info", K(ret)); } else { bool tx_read_only = get_tx_read_only(); if (OB_FAIL(serialization::encode_bool(buf, buf_len, pos, tx_read_only))) { LOG_WARN("fail to encode tx_read_only", K(ret)); } } // for compatibility with old version bool unused_literal_query = false; int64_t unused_inner_safe_weak_read_snapshot = safe_weak_read_snapshot_; bool need_serial_exec = trans_flags_.need_serial_exec(); uint64_t sql_scope_flags = 0; LST_DO_CODE(OB_UNIS_ENCODE, sys_vars_cache_.inc_data_, trans_consistency_type_, safe_weak_read_snapshot_, unused_inner_safe_weak_read_snapshot, unused_literal_query, tz_info_wrap_, app_trace_id_, proxy_capability_.capability_, client_mode_, proxy_sessid_, nested_count_, thread_data_.user_name_, next_tx_isolation_, read_snapshot_version_, check_sys_variable_, weak_read_snapshot_source_, database_id_, thread_data_.user_at_host_name_, thread_data_.user_at_client_ip_, current_execution_id_, total_stmt_tables_, cur_stmt_tables_, is_foreign_key_cascade_, sys_var_in_pc_str_, is_foreign_key_check_exist_, need_serial_exec, sql_scope_flags, stmt_type_); return ret; } OB_DEF_DESERIALIZE(ObBasicSessionInfo) { int ret = OB_SUCCESS; ObTimeZoneInfo tmp_tz_info; // for compatibility with old version bool in_transaction = false; int64_t compatibility_mode_index = 0; is_deserialized_ = true; LST_DO_CODE(OB_UNIS_DECODE, in_transaction, trans_desc_, consistency_level_, compatibility_mode_index, tmp_tz_info, tenant_id_, effective_tenant_id_, is_changed_to_temp_tenant_, user_id_, master_sessid_, capability_.capability_, thread_data_.database_name_); int64_t ser_version = get_ser_version(tenant_id_, effective_tenant_id_); trans_flags_.set_is_in_transaction(in_transaction); rpc_tenant_id_ = (tenant_id_ >> 32); tenant_id_ = (tenant_id_ << 32 >> 32); // deserialize user variables and system variables. int64_t deserialize_user_var_count = 0; int64_t deserialize_sys_var_count = 0; if (OB_FAIL(ret)) { } else if (OB_FAIL(serialization::decode(buf, data_len, pos, deserialize_user_var_count))) { LOG_WARN("fail to deserialize user var count", K(data_len), K(pos), K(ret)); } else { ObSessionVariable user_var_val; for (int64_t i = 0; OB_SUCC(ret) && i < deserialize_user_var_count; ++i) { ObString user_var_name; user_var_val.reset(); if (OB_FAIL(serialization::decode(buf, data_len, pos, user_var_name))) { LOG_WARN("fail to deserialize user var name", K(i), K(data_len), K(pos), K(ret)); } else if (OB_FAIL(serialization::decode(buf, data_len, pos, user_var_val.meta_))) { LOG_WARN("fail to deserialize user var val meta", K(i), K(data_len), K(pos), K(ret)); } else if (OB_FAIL(serialization::decode(buf, data_len, pos, user_var_val.value_))) { LOG_WARN("fail to deserialize user var val value", K(i), K(data_len), K(pos), K(ret)); } else { if (OB_FAIL(user_var_val_map_.set_refactored(user_var_name, user_var_val))) { LOG_WARN("Insert value into map failed", K(user_var_name), K(user_var_val), K(ret)); } else { ret = OB_SUCCESS; } } } } if (ser_version == CUR_SER_VERSION) { OB_UNIS_DECODE(des_sys_var_base_version_); OB_UNIS_DECODE(sys_var_inc_info_); OV(des_sys_var_base_version_ > OB_INVALID_VERSION); if (des_sys_var_base_version_ == sys_var_base_version_) { // skip. } else if (des_sys_var_base_version_ > 0) { ObSchemaGetterGuard schema_guard; OZ(GCTX.schema_service_->get_tenant_schema_guard(effective_tenant_id_, schema_guard, des_sys_var_base_version_)); OZ(load_all_sys_vars(schema_guard)); if (OB_FAIL(ret) && is_schema_error(ret)) { ret = OB_ERR_WAIT_REMOTE_SCHEMA_REFRESH; } } else { OZ(load_all_sys_vars_default()); } } if (OB_SUCC(ret)) { ObTZMapWrap tz_map_wrap; if (OB_FAIL(OTTZ_MGR.get_tenant_tz(tenant_id_, tz_map_wrap))) { LOG_WARN("get tenant timezone map failed", K(ret)); } else { tz_info_wrap_.set_tz_info_map(tz_map_wrap.get_tz_map()); } } if (OB_SUCC(ret)) { if (OB_FAIL(serialization::decode(buf, data_len, pos, deserialize_sys_var_count))) { LOG_WARN("fail to deserialize sys var count", K(data_len), K(pos), K(ret)); } else { const bool check_timezone_valid = false; for (int64_t i = 0; OB_SUCC(ret) && i < deserialize_sys_var_count; ++i) { ObObj tmp_val; ObBasicSysVar* sys_var = NULL; ObSysVarClassType sys_var_id = SYS_VAR_INVALID; int16_t tmp_sys_var_id = -1; int64_t store_idx = -1; if (OB_FAIL(serialization::decode(buf, data_len, pos, tmp_sys_var_id))) { LOG_WARN("fail to deserialize sys var id", K(data_len), K(pos), K(ret)); } else if (FALSE_IT(sys_var_id = static_cast(tmp_sys_var_id))) { } else if (ser_version == PRE_SER_VERSION && OB_FAIL(sys_var_inc_info_.add_sys_var_id(sys_var_id))) { LOG_WARN("fail to add sys var id", K(sys_var_id), K(ret)); } else if (OB_FAIL(ObSysVarFactory::calc_sys_var_store_idx(sys_var_id, store_idx))) { if (OB_SYS_VARS_MAYBE_DIFF_VERSION == ret) { // observer of higher version serialized some system variables which are // not supported in current version, just skip this data and continue. ret = OB_SUCCESS; int64_t sys_var_version = 0; int64_t sys_var_len = 0; OB_UNIS_DECODEx(sys_var_version); OB_UNIS_DECODEx(sys_var_len); if (OB_SUCC(ret)) { pos += sys_var_len; LOG_WARN("invalid sys var id, maybe version is different, skip it", K(sys_var_id)); } } else { LOG_ERROR("invalid sys var id", K(sys_var_id), K(ret)); } } else if (OB_FAIL(create_sys_var(sys_var_id, store_idx, sys_var))) { LOG_WARN("fail to create sys var", K(sys_var_id), K(ret)); } else if (OB_ISNULL(sys_var)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("create sys var is NULL", K(ret)); } else if (OB_FAIL(sys_var->deserialize(buf, data_len, pos))) { LOG_WARN("fail to deserialize sys var", K(data_len), K(pos), K(sys_var_id), K(ret)); } else if (OB_FAIL(deep_copy_sys_variable(sys_var_id, sys_var->get_value(), &tmp_val))) { LOG_WARN("fail to update system variable", K(sys_var_id), K(sys_var->get_value()), K(ret)); } else if (FALSE_IT(sys_var->set_value(tmp_val))) { } else if (OB_FAIL(process_session_variable(sys_var_id, sys_var->get_value(), true, check_timezone_valid))) { LOG_ERROR("process system variable error", K(ret), K(*sys_var)); } } } if (OB_SUCC(ret)) { bool tx_read_only = false; if (OB_FAIL(serialization::decode_bool(buf, data_len, pos, &tx_read_only))) { LOG_WARN("fail to decode tx_read_only", K(ret)); } else { // direct assignment because in this case we won't track trans_specified_status next_tx_read_only_ = tx_read_only; } } } int64_t unused_inner_safe_weak_read_snapshot = 0; bool unused_literal_query = false; bool need_serial_exec = false; uint64_t sql_scope_flags = 0; // sys_var_in_pc_str_ may be set when deserialize system variables, // so reset it before deserialization of itself. sys_var_in_pc_str_.reset(); const ObTZInfoMap* tz_info_map = tz_info_wrap_.get_tz_info_offset().get_tz_info_map(); LST_DO_CODE(OB_UNIS_DECODE, sys_vars_cache_.inc_data_, trans_consistency_type_, safe_weak_read_snapshot_, unused_inner_safe_weak_read_snapshot, unused_literal_query, tz_info_wrap_, app_trace_id_, proxy_capability_.capability_, client_mode_, proxy_sessid_, nested_count_, thread_data_.user_name_, next_tx_isolation_, read_snapshot_version_, check_sys_variable_, weak_read_snapshot_source_, database_id_, thread_data_.user_at_host_name_, thread_data_.user_at_client_ip_, current_execution_id_, total_stmt_tables_, cur_stmt_tables_, is_foreign_key_cascade_, sys_var_in_pc_str_, is_foreign_key_check_exist_, need_serial_exec, sql_scope_flags, stmt_type_); trans_flags_.set_need_serial_exec(need_serial_exec); is_deserialized_ = true; tz_info_wrap_.set_tz_info_map(tz_info_map); if (OB_SUCC(ret)) { if (unused_inner_safe_weak_read_snapshot > safe_weak_read_snapshot_) { LOG_INFO("ObBasicSessionInfo::deserialize: use inner safe weak read snapshot, " "which comes from cluster before 2.2", K(unused_inner_safe_weak_read_snapshot), K(safe_weak_read_snapshot_), K(*this)); safe_weak_read_snapshot_ = unused_inner_safe_weak_read_snapshot; } } if (OB_SUCC(ret) && GET_MIN_CLUSTER_VERSION() < CLUSTER_CURRENT_VERSION) { for (int64_t i = 0; OB_SUCC(ret) && i < get_sys_var_count(); ++i) { if ((ObSysVariables::get_flags(i) & ObSysVarFlag::NEED_SERIALIZE) && OB_ISNULL(sys_vars_[i])) { if (OB_FAIL(load_default_sys_variable(i))) { LOG_WARN("fail to load default sys variable", K(ret), K(i)); } } } } release_to_pool_ = OB_SUCC(ret); return ret; } OB_DEF_SERIALIZE(ObBasicSessionInfo::SysVarIncInfo) { int ret = OB_SUCCESS; OB_UNIS_ENCODE(all_sys_var_ids_); return ret; } OB_DEF_DESERIALIZE(ObBasicSessionInfo::SysVarIncInfo) { int ret = OB_SUCCESS; OB_UNIS_DECODE(all_sys_var_ids_); return ret; } OB_DEF_SERIALIZE_SIZE(ObBasicSessionInfo::SysVarIncInfo) { int64_t len = 0; OB_UNIS_ADD_LEN(all_sys_var_ids_); return len; } ObBasicSessionInfo::SysVarIncInfo::SysVarIncInfo() : all_sys_var_ids_() {} ObBasicSessionInfo::SysVarIncInfo::~SysVarIncInfo() {} int ObBasicSessionInfo::SysVarIncInfo::add_sys_var_id(ObSysVarClassType sys_var_id) { int ret = OB_SUCCESS; OZ(add_var_to_array_no_dup(all_sys_var_ids_, sys_var_id), all_sys_var_ids_, sys_var_id); return ret; } int ObBasicSessionInfo::SysVarIncInfo::get_des_sys_var_id(int64_t idx, ObSysVarClassType& sys_var_id) const { int ret = OB_SUCCESS; OV(0 <= idx && idx < all_sys_var_ids_.count()); OX(sys_var_id = all_sys_var_ids_.at(idx)); return ret; } bool ObBasicSessionInfo::SysVarIncInfo::all_has_sys_var_id(ObSysVarClassType sys_var_id) const { return has_exist_in_array(all_sys_var_ids_, sys_var_id); } int64_t ObBasicSessionInfo::SysVarIncInfo::all_count() const { return all_sys_var_ids_.count(); } const ObBasicSessionInfo::SysVarIds& ObBasicSessionInfo::SysVarIncInfo::get_all_sys_var_ids() const { return all_sys_var_ids_; } int ObBasicSessionInfo::SysVarIncInfo::assign(const SysVarIncInfo& other) { int ret = OB_SUCCESS; if (this != &other) { OZ(all_sys_var_ids_.assign(other.all_sys_var_ids_)); } return ret; } int ObBasicSessionInfo::SysVarIncInfo::reset() { int ret = OB_SUCCESS; OX(all_sys_var_ids_.reset()); return ret; } int ObBasicSessionInfo::load_all_sys_vars_default() { int ret = OB_SUCCESS; OZ(clean_all_sys_vars()); OZ(load_default_sys_variable(false, false)); return ret; } int ObBasicSessionInfo::clean_all_sys_vars() { int ret = OB_SUCCESS; for (int64_t i = 0; OB_SUCC(ret) && i < get_sys_var_count(); ++i) { if (OB_NOT_NULL(sys_vars_[i])) { OX(sys_vars_[i]->clean_value()); } } OX(base_sys_var_alloc_.reset()); return ret; } int ObBasicSessionInfo::load_all_sys_vars(ObSchemaGetterGuard& schema_guard) { int ret = OB_SUCCESS; const ObSysVariableSchema* sys_var_schema = NULL; OZ(schema_guard.get_sys_variable_schema(effective_tenant_id_, sys_var_schema)); OV(OB_NOT_NULL(sys_var_schema)); OZ(load_all_sys_vars(*sys_var_schema)); return ret; } int ObBasicSessionInfo::load_all_sys_vars(const ObSysVariableSchema& sys_var_schema) { int ret = OB_SUCCESS; if (sys_var_base_version_ == sys_var_schema.get_schema_version()) { OZ(process_session_variable_fast()); } else { OZ(clean_all_sys_vars()); OX(influence_plan_var_indexs_.reset()); for (int64_t i = 0; OB_SUCC(ret) && i < get_sys_var_count(); i++) { ObSysVarClassType sys_var_id = ObSysVariables::get_sys_var_id(i); const ObSysVarSchema* sys_var = NULL; OZ(sys_var_schema.get_sysvar_schema(sys_var_id, sys_var)); OV(OB_NOT_NULL(sys_var)); OZ(load_sys_variable(sys_var->get_name(), sys_var->get_data_type(), sys_var->get_value(), sys_var->get_min_val(), sys_var->get_max_val(), sys_var->get_flags(), true)); if (OB_NOT_NULL(sys_vars_[i]) && sys_vars_[i]->is_influence_plan()) { OZ(influence_plan_var_indexs_.push_back(i)); } } OX(sys_var_base_version_ = sys_var_schema.get_schema_version()); } if (!is_deserialized_) { OZ(gen_sys_var_in_pc_str()); } return ret; } OB_DEF_SERIALIZE_SIZE(ObBasicSessionInfo) { int64_t len = 0; int64_t ser_version = get_ser_version(tenant_id_, effective_tenant_id_); ObTimeZoneInfo tmp_tz_info; // for compatibility with old version int ret = OB_SUCCESS; bool in_transaction = trans_flags_.is_in_transaction(); // To be compatible with old version which store sql_mode and compatibility mode in ObSQLModeManager; int64_t compatibility_mode_index = 0; if (OB_FAIL(compatibility_mode2index(get_compatibility_mode(), compatibility_mode_index))) { LOG_WARN("convert compatibility mode to index failed", K(ret)); } LST_DO_CODE(OB_UNIS_ADD_LEN, in_transaction, trans_desc_, consistency_level_, compatibility_mode_index, tmp_tz_info, tenant_id_ | (rpc_tenant_id_ << 32), effective_tenant_id_, is_changed_to_temp_tenant_, user_id_, is_master_session() ? sessid_ : master_sessid_, capability_.capability_, thread_data_.database_name_); // calc the length of user variables and system variables. ObSEArray sys_var_ids; ObSEArray user_var_names; if (OB_FAIL(ret)) { } else if (OB_FAIL(calc_need_serialize_vars(sys_var_ids, user_var_names, ser_version))) { LOG_WARN("fail to calc need serialize vars", K(ret)); } else { int64_t actual_ser_user_var_count = 0; ObSessionVariable user_var_val; for (int64_t i = 0; OB_SUCC(ret) && i < user_var_names.count(); ++i) { user_var_val.reset(); const ObString& user_var_name = user_var_names.at(i); ret = user_var_val_map_.get_refactored(user_var_name, user_var_val); if (OB_SUCCESS != ret && OB_HASH_NOT_EXIST != ret) { LOG_WARN("fail to get user var from session user var map", K(i), K(user_var_name), K(user_var_val_map_.size()), K(ret)); } else { if (OB_SUCCESS == ret) { actual_ser_user_var_count++; len += serialization::encoded_length(user_var_name); len += serialization::encoded_length(user_var_val.meta_); len += serialization::encoded_length(user_var_val.value_); } ret = OB_SUCCESS; } } len += serialization::encoded_length(actual_ser_user_var_count); } if (OB_SUCC(ret)) { if (ser_version == CUR_SER_VERSION) { OB_UNIS_ADD_LEN(sys_var_base_version_); OB_UNIS_ADD_LEN(sys_var_inc_info_); } len += serialization::encoded_length(sys_var_ids.count()); for (int64_t i = 0; OB_SUCC(ret) && i < sys_var_ids.count(); ++i) { int64_t sys_var_idx = -1; ObSysVarClassType& type = sys_var_ids.at(i); if (OB_FAIL(ObSysVarFactory::calc_sys_var_store_idx(type, sys_var_idx))) { LOG_WARN("fail to calc sys var store idx", K(i), K(sys_var_idx), K(type), K(ret)); } else if (sys_var_idx < 0 || get_sys_var_count() <= sys_var_idx) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("sys var idx is invalid", K(sys_var_idx), K(get_sys_var_count()), K(ret)); } else if (OB_ISNULL(sys_vars_[sys_var_idx])) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("sys var is NULL", K(ret), K(sys_var_idx), K(get_sys_var_count())); } else { int16_t sys_var_id = static_cast(sys_vars_[sys_var_idx]->get_type()); len += serialization::encoded_length(sys_var_id); len += sys_vars_[sys_var_idx]->get_serialize_size(); } } } if (OB_SUCC(ret)) { bool tx_read_only = get_tx_read_only(); len += serialization::encoded_length_bool(tx_read_only); } bool unused_literal_query = false; int64_t unused_inner_safe_weak_read_snapshot = safe_weak_read_snapshot_; bool need_serial_exec = trans_flags_.need_serial_exec(); uint64_t sql_scope_flags = 0; LST_DO_CODE(OB_UNIS_ADD_LEN, sys_vars_cache_.inc_data_, trans_consistency_type_, safe_weak_read_snapshot_, unused_inner_safe_weak_read_snapshot, unused_literal_query, tz_info_wrap_, app_trace_id_, proxy_capability_.capability_, client_mode_, proxy_sessid_, nested_count_, thread_data_.user_name_, next_tx_isolation_, read_snapshot_version_, check_sys_variable_, weak_read_snapshot_source_, database_id_, thread_data_.user_at_host_name_, thread_data_.user_at_client_ip_, current_execution_id_, total_stmt_tables_, cur_stmt_tables_, is_foreign_key_cascade_, sys_var_in_pc_str_, is_foreign_key_check_exist_, need_serial_exec, sql_scope_flags, stmt_type_); return len; } //////////////////////////////////////////////////////////////// void ObBasicSessionInfo::reset_session_changed_info() { changed_sys_vars_.reset(); changed_user_vars_.reset(); is_database_changed_ = false; changed_var_pool_.reset(); feedback_manager_.reset(); } bool ObBasicSessionInfo::is_already_tracked( const ObSysVarClassType& sys_var_id, const ObIArray& array) const { bool found = false; for (int64_t i = 0; !found && i < array.count(); ++i) { if (array.at(i).id_ == sys_var_id) { found = true; break; } } return found; } bool ObBasicSessionInfo::is_already_tracked(const ObString& name, const ObIArray& array) const { bool found = false; for (int64_t i = 0; !found && i < array.count(); ++i) { if (array.at(i) == name) { found = true; break; } } return found; } int ObBasicSessionInfo::add_changed_sys_var( const ObSysVarClassType& sys_var_id, const ObObj& old_val, ObIArray& array) { int ret = OB_SUCCESS; ObObj val; if (SYS_VAR_INVALID == sys_var_id) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid input value", K(sys_var_id), K(old_val), K(ret)); } else if (OB_FAIL(deep_copy_obj(changed_var_pool_, old_val, val))) { LOG_WARN("failed to deep copy system var old value", K(ret), K(old_val)); } else if (OB_FAIL(array.push_back(ChangedVar(sys_var_id, val)))) { LOG_WARN("fail to push back", K(sys_var_id), K(old_val), K(ret)); } return ret; } int ObBasicSessionInfo::add_changed_user_var(const ObString& name, common::ObIArray& array) { return array.push_back(name); } int ObBasicSessionInfo::track_sys_var(const ObSysVarClassType& sys_var_id, const ObObj& old_val) { int ret = OB_SUCCESS; if (SYS_VAR_INVALID == sys_var_id) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid input value", K(sys_var_id), K(ret)); } else if (!is_already_tracked(sys_var_id, changed_sys_vars_)) { if (OB_FAIL(add_changed_sys_var(sys_var_id, old_val, changed_sys_vars_))) { LOG_WARN("fail to add changed system var", K(sys_var_id), K(old_val), K(ret)); } else { LOG_DEBUG("add changed var success", K(sys_var_id), K(old_val), K(changed_sys_vars_)); } } return ret; } int ObBasicSessionInfo::track_user_var(const common::ObString& user_var) { int ret = OB_SUCCESS; if (user_var.empty()) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid input value", K(user_var), K(ret)); } else if (!is_already_tracked(user_var, changed_user_vars_)) { ObString name; if (OB_FAIL(ob_write_string(changed_var_pool_, user_var, name))) { LOG_WARN("fail to write string", K(user_var), K(ret)); } else if (OB_FAIL(add_changed_user_var(name, changed_user_vars_))) { LOG_WARN("fail to add changed user var", K(name), K(ret)); } } return ret; } int ObBasicSessionInfo::is_sys_var_actully_changed( const ObSysVarClassType& sys_var_id, const ObObj& old_val, ObObj& new_val, bool& changed) { int ret = OB_SUCCESS; changed = true; OZ(get_sys_variable(sys_var_id, new_val)); if (OB_SUCC(ret)) { switch (sys_var_id) { case SYS_VAR_AUTO_INCREMENT_INCREMENT: case SYS_VAR_AUTO_INCREMENT_OFFSET: case SYS_VAR_LAST_INSERT_ID: case SYS_VAR_TX_READ_ONLY: case SYS_VAR_OB_ENABLE_PLAN_CACHE: case SYS_VAR_OB_ENABLE_SQL_AUDIT: case SYS_VAR_AUTOCOMMIT: case SYS_VAR_OB_ENABLE_TRACE_LOG: case SYS_VAR_OB_ORG_CLUSTER_ID: case SYS_VAR_OB_QUERY_TIMEOUT: case SYS_VAR_OB_TRX_TIMEOUT: case SYS_VAR_OB_TRX_IDLE_TIMEOUT: case SYS_VAR_COLLATION_CONNECTION: case SYS_VAR_OB_PL_BLOCK_TIMEOUT: case SYS_VAR_OB_COMPATIBILITY_MODE: case SYS_VAR__OB_PROXY_SESSION_TEMPORARY_TABLE_USED: { changed = old_val.get_meta() == new_val.get_meta() ? old_val != new_val : true; } break; default: { break; } } } LOG_DEBUG("is_sys_var_actully_changed", K(sys_var_id), K(changed), K(old_val), K(new_val)); return ret; } int ObBasicSessionInfo::set_partition_hit(const bool is_hit) { int ret = OB_SUCCESS; ObObj obj; obj.set_bool(is_hit); if (OB_FAIL(update_sys_variable(SYS_VAR_OB_PROXY_PARTITION_HIT, obj))) { LOG_WARN("fail to update_system_variable", K(ret)); } else { } return ret; } int ObBasicSessionInfo::set_proxy_user_privilege(const int64_t user_priv_set) { int ret = OB_SUCCESS; ObObj obj; obj.set_int(user_priv_set); if (OB_FAIL(update_sys_variable(SYS_VAR_OB_PROXY_USER_PRIVILEGE, obj))) { LOG_WARN("fail to update_system_variable", K(SYS_VAR_OB_PROXY_USER_PRIVILEGE), K(user_priv_set), K(ret)); } else { } return ret; } int ObBasicSessionInfo::update_last_trace_id(const ObCurTraceId::TraceId& trace_id) { int ret = OB_SUCCESS; const int64_t TEMP_STR_BUF_LEN = 128; // 128 is enough to tracd_id, or will be truncated char tmp_str_buf[TEMP_STR_BUF_LEN]; // no need init int64_t pos = trace_id.to_string(tmp_str_buf, TEMP_STR_BUF_LEN); ObString trace_id_str(static_cast(pos), tmp_str_buf); ObObj obj; obj.set_string(ObVarcharType, trace_id_str); if (OB_FAIL(update_sys_variable(SYS_VAR_OB_STATEMENT_TRACE_ID, obj))) { LOG_WARN("fail to update_system_variable", K(SYS_VAR_OB_STATEMENT_TRACE_ID), K(trace_id_str), K(ret)); } else { } return ret; } int ObBasicSessionInfo::set_proxy_capability(const uint64_t cap) { int ret = OB_SUCCESS; ObObj obj; obj.set_int(cap); if (OB_FAIL(update_sys_variable(SYS_VAR_OB_CAPABILITY_FLAG, obj))) { LOG_WARN("fail to update_system_variable", K(SYS_VAR_OB_CAPABILITY_FLAG), K(cap), K(ret)); } else { } return ret; } int ObBasicSessionInfo::set_trans_specified(const bool is_spec) { int ret = OB_SUCCESS; ObObj obj; obj.set_bool(is_spec); if (OB_FAIL(update_sys_variable(SYS_VAR_OB_PROXY_SET_TRX_EXECUTED, obj))) { LOG_WARN("fail to update_system_variable", K(ret)); } else { } return ret; } int ObBasicSessionInfo::set_session_temp_table_used(const bool is_used) { int ret = OB_SUCCESS; ObObj obj; obj.set_int(is_used); if (OB_FAIL(update_sys_variable(SYS_VAR__OB_PROXY_SESSION_TEMPORARY_TABLE_USED, obj))) { LOG_WARN("fail to update_system_variable", K(ret)); } return ret; } int ObBasicSessionInfo::set_safe_weak_read_snapshot_variable(const int64_t safe_snapshot) { int ret = OB_SUCCESS; ObObj obj; obj.set_int(safe_snapshot); if (OB_FAIL(update_sys_variable(SYS_VAR_OB_SAFE_WEAK_READ_SNAPSHOT, obj))) { LOG_WARN("fail to update_system_variable", K(SYS_VAR_OB_SAFE_WEAK_READ_SNAPSHOT), K(safe_snapshot), K(ret)); } else { } return ret; } int ObBasicSessionInfo::set_init_connect(const ObString& init_sql) { int ret = OB_SUCCESS; ObObj obj; obj.set_string(ObVarcharType, init_sql); if (OB_FAIL(update_sys_variable(SYS_VAR_INIT_CONNECT, obj))) { LOG_WARN("fail to update_system_variable", K(ret)); } else { } return ret; } int ObBasicSessionInfo::save_trans_status() { int ret = OB_SUCCESS; switch (trans_spec_status_) { case TRANS_SPEC_SET: ret = set_trans_specified(true); break; case TRANS_SPEC_COMMIT: ret = set_trans_specified(false); trans_spec_status_ = TRANS_SPEC_NOT_SET; break; case TRANS_SPEC_NOT_SET: // do nothing break; default: ret = OB_ERR_UNEXPECTED; LOG_ERROR("Unknown trans specified status", K(trans_spec_status_), K(ret)); break; } return ret; } int ObBasicSessionInfo::get_character_set_client(ObCharsetType& character_set_client) const { return get_charset_sys_var(SYS_VAR_CHARACTER_SET_CLIENT, character_set_client); } int ObBasicSessionInfo::get_character_set_connection(ObCharsetType& character_set_connection) const { return get_charset_sys_var(SYS_VAR_CHARACTER_SET_CONNECTION, character_set_connection); } int ObBasicSessionInfo::get_character_set_database(ObCharsetType& character_set_database) const { return get_charset_sys_var(SYS_VAR_CHARACTER_SET_DATABASE, character_set_database); } int ObBasicSessionInfo::get_character_set_results(ObCharsetType& character_set_results) const { if (CHARSET_INVALID == (character_set_results = sys_vars_cache_.get_character_set_results())) { get_charset_sys_var(SYS_VAR_CHARACTER_SET_RESULTS, character_set_results); } return OB_SUCCESS; } int ObBasicSessionInfo::get_character_set_server(ObCharsetType& character_set_server) const { return get_charset_sys_var(SYS_VAR_CHARACTER_SET_SERVER, character_set_server); } int ObBasicSessionInfo::get_character_set_system(ObCharsetType& character_set_system) const { return get_charset_sys_var(SYS_VAR_CHARACTER_SET_SYSTEM, character_set_system); } int ObBasicSessionInfo::get_character_set_filesystem(ObCharsetType& character_set_filesystem) const { return get_charset_sys_var(SYS_VAR_CHARACTER_SET_FILESYSTEM, character_set_filesystem); } int ObBasicSessionInfo::get_collation_database(ObCollationType& collation_database) const { return get_collation_sys_var(SYS_VAR_COLLATION_DATABASE, collation_database); } int ObBasicSessionInfo::get_collation_server(ObCollationType& collation_server) const { return get_collation_sys_var(SYS_VAR_COLLATION_SERVER, collation_server); } int ObBasicSessionInfo::get_foreign_key_checks(int64_t& foreign_key_checks) const { foreign_key_checks = sys_vars_cache_.get_foreign_key_checks(); return OB_SUCCESS; } int ObBasicSessionInfo::get_capture_plan_baseline(bool& v) const { v = sys_vars_cache_.get_optimizer_capture_sql_plan_baselines(); return OB_SUCCESS; } int ObBasicSessionInfo::get_use_plan_baseline(bool& v) const { v = sys_vars_cache_.get_optimizer_use_sql_plan_baselines(); return OB_SUCCESS; } int ObBasicSessionInfo::get_adaptive_cursor_sharing(bool& acs) const { acs = sys_vars_cache_.get__optimizer_adaptive_cursor_sharing(); return OB_SUCCESS; } int ObBasicSessionInfo::get_nlj_batching_enabled(bool& v) const { return get_bool_sys_var(SYS_VAR__NLJ_BATCHING_ENABLED, v); } int ObBasicSessionInfo::get_auto_increment_cache_size(int64_t& auto_increment_cache_size) { int ret = OB_SUCCESS; if (OB_FAIL(get_sys_variable(SYS_VAR_AUTO_INCREMENT_CACHE_SIZE, auto_increment_cache_size))) { LOG_WARN("fail to get variables", K(ret)); } return ret; } int ObBasicSessionInfo::get_enable_parallel_dml(bool& v) const { return get_bool_sys_var(SYS_VAR__ENABLE_PARALLEL_DML, v); } int ObBasicSessionInfo::get_enable_parallel_query(bool& v) const { return get_bool_sys_var(SYS_VAR__ENABLE_PARALLEL_QUERY, v); } int ObBasicSessionInfo::get_force_parallel_query_dop(uint64_t& v) const { int ret = OB_SUCCESS; if (exec_min_cluster_version_ >= CLUSTER_VERSION_3100) { ret = get_uint64_sys_var(SYS_VAR__FORCE_PARALLEL_QUERY_DOP, v); } else { v = 1; } return ret; } int ObBasicSessionInfo::get_force_parallel_dml_dop(uint64_t& v) const { int ret = OB_SUCCESS; if (exec_min_cluster_version_ >= CLUSTER_VERSION_3100) { ret = get_uint64_sys_var(SYS_VAR__FORCE_PARALLEL_DML_DOP, v); } else { v = 1; } return ret; } int ObBasicSessionInfo::get_secure_file_priv(ObString& v) const { return get_string_sys_var(SYS_VAR_SECURE_FILE_PRIV, v); } int ObBasicSessionInfo::get_sql_safe_updates(bool& v) const { return get_bool_sys_var(SYS_VAR_SQL_SAFE_UPDATES, v); } int ObBasicSessionInfo::get_session_temp_table_used(bool& is_used) const { return get_bool_sys_var(SYS_VAR__OB_PROXY_SESSION_TEMPORARY_TABLE_USED, is_used); } void ObBasicSessionInfo::reset_tx_variable() { // this function will be called in end_trans phase, and must be idempotent. // trans_desc will be reset in start_trans phase, not here, because end_trans may use it. reset_tx_isolation(); reset_tx_read_only(); reset_trans_flags(); clear_trans_consistency_type(); clear_app_trace_id(); } int32_t ObBasicSessionInfo::get_tx_isolation() const { int32_t isolation = -1; const int32_t TX_NOT_SET = -1; if (next_tx_isolation_ != TX_NOT_SET) { isolation = next_tx_isolation_; } else { isolation = sys_vars_cache_.get_tx_isolation(); } return isolation; } bool ObBasicSessionInfo::is_isolation_serializable() const { return ObTransIsolation::SERIALIZABLE == get_tx_isolation(); } void ObBasicSessionInfo::set_tx_isolation(int32_t isolation) { next_tx_isolation_ = isolation; trans_spec_status_ = TRANS_SPEC_SET; } void ObBasicSessionInfo::reset_tx_isolation() { next_tx_isolation_ = transaction::ObTransIsolation::UNKNOWN; if (TRANS_SPEC_SET == trans_spec_status_) { trans_spec_status_ = TRANS_SPEC_COMMIT; } } void ObBasicSessionInfo::set_tx_read_only(bool read_only) { next_tx_read_only_ = read_only; trans_spec_status_ = TRANS_SPEC_SET; } void ObBasicSessionInfo::reset_tx_read_only() { next_tx_read_only_ = -1; if (TRANS_SPEC_SET == trans_spec_status_) { trans_spec_status_ = TRANS_SPEC_COMMIT; } } int ObBasicSessionInfo::check_tx_read_only_privilege(const ObSqlTraits& sql_traits) { int ret = OB_SUCCESS; if (sql_traits.is_cause_implicit_commit_) { reset_tx_read_only(); } else { } if (get_tx_read_only() && !sql_traits.is_readonly_stmt_) { ret = OB_ERR_CANT_EXECUTE_IN_READ_ONLY_TRANSACTION; } else { } return ret; } int ObBasicSessionInfo::reset_tx_variable_if_remote_trans(const ObPhyPlanType& type) { int ret = OB_SUCCESS; if (ObSqlTransUtil::is_remote_trans(get_local_autocommit(), trans_flags_.is_in_transaction(), type)) { reset_tx_variable(); } else { // nothing to do } return ret; } bool ObBasicSessionInfo::get_tx_read_only() const { bool tx_read_only = false; const int32_t TX_NOT_SET = -1; if (next_tx_read_only_ != TX_NOT_SET) { tx_read_only = next_tx_read_only_; } else { tx_read_only = sys_vars_cache_.get_tx_read_only(); } return tx_read_only; } int ObBasicSessionInfo::store_query_string(const ObString& stmt) { LockGuard lock_guard(thread_data_mutex_); return store_query_string_(stmt); } int ObBasicSessionInfo::store_query_string_(const ObString& stmt) { int ret = OB_SUCCESS; int64_t truncated_len = std::min(MAX_CUR_QUERY_LEN - 1, static_cast(stmt.length())); if (truncated_len < 0) { ret = OB_INVALID_ARGUMENT; LOG_WARN("invalid str length", K(ret), K(truncated_len)); } else if (thread_data_.cur_query_buf_len_ - 1 < truncated_len) { if (thread_data_.cur_query_ != nullptr) { ob_free(thread_data_.cur_query_); thread_data_.cur_query_ = NULL; thread_data_.cur_query_buf_len_ = 0; } int64_t len = MAX(MIN_CUR_QUERY_LEN, truncated_len + 1); char* buf = reinterpret_cast(ob_malloc(len, ObModIds::OB_SQL_SESSION_QUERY_SQL)); if (OB_ISNULL(buf)) { ret = OB_ALLOCATE_MEMORY_FAILED; LOG_WARN("alloc memory failed", K(ret)); } else { thread_data_.cur_query_ = buf; thread_data_.cur_query_buf_len_ = len; } } if (OB_SUCC(ret)) { MEMCPY(thread_data_.cur_query_, stmt.ptr(), truncated_len); thread_data_.cur_query_[truncated_len] = '\0'; thread_data_.cur_query_len_ = truncated_len; } return ret; } void ObBasicSessionInfo::reset_query_string() { thread_data_.cur_query_[0] = '\0'; thread_data_.cur_query_len_ = 0; } int ObBasicSessionInfo::update_session_timeout() { int ret = OB_SUCCESS; ObObj val; if (thread_data_.is_interactive_) { val.set_int(thread_data_.interactive_timeout_); if (OB_FAIL(update_sys_variable(SYS_VAR_WAIT_TIMEOUT, val))) { LOG_WARN("failed to update session_timeout", K(ret)); } } return ret; } const char* ObBasicSessionInfo::get_session_state_str() const { const char* str_ret = NULL; switch (thread_data_.state_) { case SESSION_INIT: str_ret = "INIT"; break; case SESSION_SLEEP: str_ret = "SLEEP"; break; case QUERY_ACTIVE: str_ret = "ACTIVE"; break; case QUERY_KILLED: str_ret = "QUERY_KILLED"; break; case SESSION_KILLED: str_ret = "SESSION_KILLED"; break; default: str_ret = "INVALID SESSION STATE"; break; } return str_ret; } int ObBasicSessionInfo::is_timeout(bool& is_timeout) { int ret = OB_SUCCESS; int64_t timeout = 0; is_timeout = false; if (SESSION_SLEEP == thread_data_.state_) { timeout = thread_data_.is_interactive_ ? thread_data_.interactive_timeout_ : thread_data_.wait_timeout_; int64_t cur_time = ::oceanbase::common::ObTimeUtility::current_time(); if (OB_UNLIKELY(timeout < 0)) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("session timeout setting is invalid", K(ret), K(timeout)); } else if (OB_UNLIKELY(timeout > INT64_MAX / 1000 / 1000)) { ret = OB_ERR_UNEXPECTED; LOG_ERROR("session timeout setting is too larger, skip check timeout", K(ret), K(timeout)); } else if (0 == timeout) { // no timeout check for timeout == 0 } else if (SESSION_SLEEP == thread_data_.state_ && thread_data_.last_active_time_ + timeout * 1000 * 1000 < cur_time) { const ObString& user_name = get_user_name(); char addr_buf[common::OB_IP_PORT_STR_BUFF]; if (OB_FAIL(get_peer_addr().ip_port_to_string(addr_buf, OB_IP_PORT_STR_BUFF))) { LOG_WARN("failed to get peer addr string", K(ret), K(get_peer_addr()), K(addr_buf)); } else { _LOG_INFO("sessionkey %u, proxy_sessid %lu: %.*s from %s timeout: last active time=%s, cur=%s, timeout=%lds", sessid_, proxy_sessid_, user_name.length(), user_name.ptr(), addr_buf, time2str(thread_data_.last_active_time_), time2str(cur_time), timeout); } is_timeout = true; } } return ret; } int ObBasicSessionInfo::is_trx_idle_timeout(bool& timeout) { int ret = OB_SUCCESS; int64_t cur_time = ::oceanbase::common::ObTimeUtility::current_time(); LOG_DEBUG("check trx_idle_timeout : ", K_(sessid), K(trans_flags_.is_in_transaction()), K(curr_trans_last_stmt_end_time_), K(cur_time), K(get_query_start_time())); if (get_query_start_time() < curr_trans_last_stmt_end_time_) { int64_t ob_trx_idle_timeout = sys_vars_cache_.get_ob_trx_idle_timeout() > 0 ? sys_vars_cache_.get_ob_trx_idle_timeout() : 120 * 1000 * 1000; if (trans_flags_.is_in_transaction() && curr_trans_last_stmt_end_time_ > 0 && curr_trans_last_stmt_end_time_ + ob_trx_idle_timeout < cur_time) { LOG_WARN("ob_trx_idle_timeout happen", K_(sessid), K_(curr_trans_last_stmt_end_time), K(ob_trx_idle_timeout)); curr_trans_last_stmt_end_time_ = 0; // flip timeout = true; } } return ret; } int ObBasicSessionInfo::get_pc_mem_conf(ObPCMemPctConf& pc_mem_conf) { int ret = OB_SUCCESS; if (OB_FAIL(get_sys_variable(SYS_VAR_OB_PLAN_CACHE_PERCENTAGE, pc_mem_conf.limit_pct_))) { LOG_WARN("fail to get plan cache system variables", K(pc_mem_conf.limit_pct_), K(ret)); } else if (OB_FAIL(get_sys_variable(SYS_VAR_OB_PLAN_CACHE_EVICT_HIGH_PERCENTAGE, pc_mem_conf.high_pct_))) { LOG_WARN("fail to get plan cache system variables", K(pc_mem_conf.high_pct_), K(ret)); } else if (OB_FAIL(get_sys_variable(SYS_VAR_OB_PLAN_CACHE_EVICT_LOW_PERCENTAGE, pc_mem_conf.low_pct_))) { LOG_WARN("fail to get plan cache system variables", K(pc_mem_conf.low_pct_), K(ret)); } return ret; } int ObBasicSessionInfo::get_sql_audit_mem_conf(int64_t& mem_pct) { int ret = OB_SUCCESS; if (OB_FAIL(get_sys_variable(SYS_VAR_OB_SQL_AUDIT_PERCENTAGE, mem_pct))) { LOG_WARN("failed to get memory percentage for sql audit", K(ret)); } return ret; } void ObBasicSessionInfo::set_conn(easy_connection_t* conn) { LockGuard lock_guard(thread_data_mutex_); thread_data_.conn_ = conn; } void ObBasicSessionInfo::set_session_data(ObSQLSessionState state, obmysql::ObMySQLCmd mysql_cmd, int64_t thread_id) { LockGuard lock_guard(thread_data_mutex_); set_session_state_(state); thread_data_.mysql_cmd_ = mysql_cmd; thread_id_ = thread_id; } int ObBasicSessionInfo::set_session_state(ObSQLSessionState state) { LockGuard lock_guard(thread_data_mutex_); return set_session_state_(state); } int ObBasicSessionInfo::set_session_state_(ObSQLSessionState state) { int ret = OB_SUCCESS; if (OB_UNLIKELY(SESSION_KILLED == thread_data_.state_)) { ret = OB_ERR_SESSION_INTERRUPTED; LOG_WARN("session is killed", K(ret), K(sessid_), K(proxy_sessid_), K(version_), K(state)); } else if (OB_UNLIKELY(SESS_NOT_IN_RETRY != thread_data_.is_in_retry_ && QUERY_KILLED == thread_data_.state_ && SESSION_KILLED != state)) { ret = OB_ERR_QUERY_INTERRUPTED; LOG_WARN("query is killed", K(ret), K(sessid_), K(proxy_sessid_), K(version_), K(state)); } else { thread_data_.state_ = state; thread_data_.cur_state_start_time_ = ::oceanbase::common::ObClockGenerator::getClock(); } return ret; } int ObBasicSessionInfo::set_session_active( const ObString& sql, const int64_t query_receive_ts, const int64_t last_active_time_ts, obmysql::ObMySQLCmd cmd) { int ret = OB_SUCCESS; LockGuard lock_guard(thread_data_mutex_); if (OB_FAIL(store_query_string_(sql))) { LOG_WARN("store query string fail", K(ret)); } else if (OB_FAIL(set_session_state_(QUERY_ACTIVE))) { LOG_WARN("fail to set session state", K(ret)); } else { thread_data_.cur_query_start_time_ = query_receive_ts; thread_data_.mysql_cmd_ = cmd; thread_data_.last_active_time_ = last_active_time_ts; } return ret; } int ObBasicSessionInfo::base_save_session(BaseSavedValue& saved_value, bool skip_cur_stmt_tables) { int ret = OB_SUCCESS; // OZ (saved_value.trans_desc_.stmt_deep_copy(trans_desc_)); // OX (saved_value.in_transaction_ = trans_flags_.is_in_transaction()); OX(saved_value.cur_phy_plan_ = cur_phy_plan_); OX(cur_phy_plan_ = NULL); int len = MIN(thread_data_.cur_query_len_, static_cast(sizeof(saved_value.cur_query_) - 1)); if (thread_data_.cur_query_ != nullptr) { OX(MEMCPY(&saved_value.cur_query_, thread_data_.cur_query_, len)); OX(thread_data_.cur_query_[0] = 0); } OX(saved_value.cur_query_len_ = len); OX(thread_data_.cur_query_len_ = 0); // OX (saved_value.cur_query_start_time_ = thread_data_.cur_query_start_time_); // OX (thread_data_.cur_query_start_time_ = 0); OZ(saved_value.total_stmt_tables_.assign(total_stmt_tables_)); if (!skip_cur_stmt_tables) { OZ(append_array_no_dup(total_stmt_tables_, cur_stmt_tables_)); } OZ(saved_value.cur_stmt_tables_.assign(cur_stmt_tables_)); OX(cur_stmt_tables_.reset()); OX(sys_vars_cache_.get_autocommit_info( saved_value.base_autocommit_, saved_value.inc_autocommit_, saved_value.is_inc_autocommit_)); OX(sys_vars_cache_.set_autocommit_info(false, false, false)); OX(saved_value.is_foreign_key_cascade_ = is_foreign_key_cascade_); OX(is_foreign_key_cascade_ = false); OX(saved_value.is_foreign_key_check_exist_ = is_foreign_key_check_exist_); OX(is_foreign_key_check_exist_ = false); OX(saved_value.need_serial_exec_ = trans_flags_.need_serial_exec()); if (OB_NOT_NULL(saved_value.cur_phy_plan_) && saved_value.cur_phy_plan_->get_need_serial_exec()) { OX(trans_flags_.set_need_serial_exec(true)); } return ret; } int ObBasicSessionInfo::stmt_save_session(StmtSavedValue& saved_value, bool skip_cur_stmt_tables) { int ret = OB_SUCCESS; OZ(base_save_session(saved_value, skip_cur_stmt_tables)); OZ(saved_value.trans_desc_.stmt_deep_copy(trans_desc_)); OX(saved_value.in_transaction_ = trans_flags_.is_in_transaction()); OX(saved_value.cur_query_start_time_ = thread_data_.cur_query_start_time_); OX(thread_data_.cur_query_start_time_ = 0); OZ(saved_value.trans_result_.assign(trans_result_)); OX(trans_result_.reset()); return ret; } int ObBasicSessionInfo::save_basic_session(StmtSavedValue& saved_value, bool skip_cur_stmt_tables) { return stmt_save_session(saved_value, skip_cur_stmt_tables); } int ObBasicSessionInfo::begin_nested_session(StmtSavedValue& saved_value, bool skip_cur_stmt_tables) { int ret = OB_SUCCESS; OZ(SMART_CALL(save_basic_session(saved_value, skip_cur_stmt_tables))); OX(trans_flags_.set_is_in_transaction(true)); return ret; } int ObBasicSessionInfo::base_restore_session(BaseSavedValue& saved_value) { int ret = OB_SUCCESS; OX(trans_flags_.set_need_serial_exec(saved_value.need_serial_exec_)); OX(is_foreign_key_check_exist_ = saved_value.is_foreign_key_check_exist_); OX(is_foreign_key_cascade_ = saved_value.is_foreign_key_cascade_); OX(sys_vars_cache_.set_autocommit_info( saved_value.base_autocommit_, saved_value.inc_autocommit_, saved_value.is_inc_autocommit_)); OZ(cur_stmt_tables_.assign(saved_value.cur_stmt_tables_)); OZ(total_stmt_tables_.assign(saved_value.total_stmt_tables_)); // OX (thread_data_.cur_query_start_time_ = saved_value.cur_query_start_time_); int64_t len = MIN(saved_value.cur_query_len_, thread_data_.cur_query_buf_len_ - 1); OX(thread_data_.cur_query_len_ = len); if (thread_data_.cur_query_ != nullptr) { OX(MEMCPY(thread_data_.cur_query_, saved_value.cur_query_, len)); thread_data_.cur_query_[len] = '\0'; } OX(cur_phy_plan_ = saved_value.cur_phy_plan_); return ret; } int ObBasicSessionInfo::stmt_restore_session(StmtSavedValue& saved_value) { int ret = OB_SUCCESS; OZ(trans_result_.merge_result(saved_value.trans_result_)); OX(thread_data_.cur_query_start_time_ = saved_value.cur_query_start_time_); OX(trans_flags_.set_is_in_transaction(saved_value.in_transaction_)); OZ(trans_desc_.stmt_deep_copy(saved_value.trans_desc_)); OZ(base_restore_session(saved_value)); return ret; } int ObBasicSessionInfo::restore_basic_session(StmtSavedValue& saved_value) { return stmt_restore_session(saved_value); } int ObBasicSessionInfo::end_nested_session(StmtSavedValue& saved_value) { int ret = OB_SUCCESS; int64_t max_sql_no = MAX(trans_desc_.get_max_sql_no(), trans_result_.get_max_sql_no()); OZ(SMART_CALL(restore_basic_session(saved_value))); OX(saved_value.reset()); OX(trans_desc_.restore_max_sql_no(max_sql_no)); OX(trans_result_.set_max_sql_no(max_sql_no)); return ret; } int ObBasicSessionInfo::trans_save_session(TransSavedValue& saved_value) { int ret = OB_SUCCESS; OZ(base_save_session(saved_value, false)); OZ(saved_value.trans_desc_.trans_deep_copy(trans_desc_)); OX(trans_desc_.reset()); OZ(trans_desc_.init(this)); OX(saved_value.trans_flags_ = trans_flags_); OX(trans_flags_.reset()); OZ(saved_value.trans_result_.assign(trans_result_)); OX(trans_result_.reset()); OX(saved_value.nested_count_ = nested_count_); OX(nested_count_ = -1); return ret; } int ObBasicSessionInfo::trans_restore_session(TransSavedValue& saved_value) { int ret = OB_SUCCESS; OX(nested_count_ = saved_value.nested_count_); OZ(trans_result_.assign(saved_value.trans_result_)); OX(trans_flags_ = saved_value.trans_flags_); OZ(trans_desc_.trans_deep_copy(saved_value.trans_desc_)); OZ(base_restore_session(saved_value)); return ret; } int ObBasicSessionInfo::begin_autonomous_session(TransSavedValue& saved_value) { return trans_save_session(saved_value); } int ObBasicSessionInfo::end_autonomous_session(TransSavedValue& saved_value) { return trans_restore_session(saved_value); } int ObBasicSessionInfo::set_start_stmt() { int ret = OB_SUCCESS; OV(nested_count_ == -1, OB_ERR_UNEXPECTED, nested_count_); OX(nested_count_ = 0); return ret; } int ObBasicSessionInfo::set_end_stmt() { int ret = OB_SUCCESS; OV(nested_count_ == 0, OB_ERR_UNEXPECTED, nested_count_); OX(nested_count_ = -1); return ret; } int ObBasicSessionInfo::set_cur_stmt_tables(const ObIArray& stmt_partitions, stmt::StmtType stmt_type) { int ret = OB_SUCCESS; if (!is_nested_session()) { // cur stmt is top stmt. total_stmt_tables_.reset(); cur_stmt_tables_.reset(); } if (!is_foreign_key_cascade() && !is_foreign_key_check_exist()) { TableStmtType table_stmt_type; int64_t idx = -1; table_stmt_type.stmt_type_ = stmt_type; for (int i = 0; OB_SUCC(ret) && i < stmt_partitions.count(); i++) { OX(table_stmt_type.table_id_ = stmt_partitions.at(i).table_id_); if (has_exist_in_array(total_stmt_tables_, table_stmt_type, &idx)) { OV(0 <= idx && idx < total_stmt_tables_.count()); OV(table_stmt_type.is_select_stmt() && total_stmt_tables_.at(idx).is_select_stmt(), OB_ERR_MUTATING_TABLE_OPERATION, total_stmt_tables_, table_stmt_type, is_foreign_key_cascade_, is_foreign_key_check_exist_); } OZ(add_var_to_array_no_dup(cur_stmt_tables_, table_stmt_type), cur_stmt_tables_, table_stmt_type); } } return ret; } int ObBasicSessionInfo::set_time_zone( const ObString& str_val, const bool is_oralce_mode, const bool check_timezone_valid) { int ret = OB_SUCCESS; int32_t offset = 0; int ret_more = OB_SUCCESS; if (OB_FAIL(ObTimeConverter::str_to_offset(str_val, offset, ret_more, is_oralce_mode, check_timezone_valid))) { if (ret != OB_ERR_UNKNOWN_TIME_ZONE) { LOG_WARN("fail to convert time zone", K(str_val), K(ret)); } } else { tz_info_wrap_.set_tz_info_offset(offset); } if (OB_ERR_UNKNOWN_TIME_ZONE == ret) { ObTZMapWrap tz_map_wrap; ObTimeZoneInfoManager* tz_info_mgr = NULL; if (OB_FAIL(OTTZ_MGR.get_tenant_timezone(tenant_id_, tz_map_wrap, tz_info_mgr))) { LOG_WARN("get tenant timezone with lock failed", K(ret)); } else if (OB_ISNULL(tz_info_mgr)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("tenant timezone mgr is null", K(tz_info_mgr)); } else { const int64_t orig_version = tz_info_wrap_.get_cur_version(); tz_info_wrap_.set_cur_version(tz_info_mgr->get_version()); ObCollationType coll_type = ObCharset::get_default_collation(ObCharset::get_default_charset()); int32_t no_sp_len = static_cast(ObCharset::strlen_byte_no_sp(coll_type, str_val.ptr(), str_val.length())); ObString val_no_sp(no_sp_len, str_val.ptr()); if (is_oralce_mode) { val_no_sp = val_no_sp.trim(); } int64_t start_service_time = GCTX.start_service_time_; if (OB_FAIL(tz_info_mgr->find_time_zone_info(val_no_sp, tz_info_wrap_.get_tz_info_pos()))) { LOG_WARN("fail to find time zone", K(str_val), K(val_no_sp), K(ret)); tz_info_wrap_.set_cur_version(orig_version); } else { tz_info_wrap_.set_tz_info_position(); } if (OB_ERR_UNKNOWN_TIME_ZONE == ret) { if (0 == start_service_time) { LOG_INFO( "ignore unknow time zone, perhaps in remote/distribute task processer when server start_time is zero", K(str_val)); ret = OB_SUCCESS; if (OB_FAIL(tz_info_wrap_.get_tz_info_pos().set_tz_name(str_val.ptr(), no_sp_len))) { LOG_WARN("fail to set time zone info name", K(str_val), K(ret)); } else { tz_info_wrap_.set_tz_info_position(); } } } } } return ret; } int ObBasicSessionInfo::update_timezone_info() { int ret = OB_SUCCESS; ObTZMapWrap tz_map_wrap; ObTimeZoneInfoManager* tz_info_mgr = NULL; if (OB_FAIL(OTTZ_MGR.get_tenant_timezone(tenant_id_, tz_map_wrap, tz_info_mgr))) { LOG_WARN("get tenant timezone with lock failed", K(ret)); } else if (OB_ISNULL(tz_info_mgr)) { ret = OB_ERR_UNEXPECTED; LOG_WARN("tenant timezone mgr is null", K(tz_info_mgr)); } else if (OB_UNLIKELY( tz_info_wrap_.is_position_class() && tz_info_mgr->get_version() > tz_info_wrap_.get_cur_version())) { ObString tz_name; if (OB_UNLIKELY(!tz_info_wrap_.get_tz_info_pos().is_valid())) { ret = OB_ERR_UNEXPECTED; LOG_WARN("time zone info is invalid", K(tz_info_wrap_.get_tz_info_pos()), K(ret)); } else if (OB_FAIL(tz_info_wrap_.get_tz_info_pos().get_tz_name(tz_name))) { LOG_WARN("fal to get time zone name", K(tz_info_wrap_.get_tz_info_pos()), K(ret)); } else { int64_t orig_version = tz_info_wrap_.get_cur_version(); tz_info_wrap_.set_cur_version(tz_info_mgr->get_version()); if (OB_FAIL(tz_info_mgr->find_time_zone_info(tz_name, tz_info_wrap_.get_tz_info_pos()))) { LOG_WARN("fail to find time zone info", K(tz_name), K(ret)); tz_info_wrap_.set_cur_version(orig_version); } else { tz_info_wrap_.get_tz_info_pos().set_error_on_overlap_time(tz_info_wrap_.is_error_on_overlap_time()); } } } return ret; } constexpr ObSysVarClassType ObExecEnv::ExecEnvMap[MAX_ENV + 1]; void ObExecEnv::reset() { sql_mode_ = DEFAULT_OCEANBASE_MODE; charset_client_ = CS_TYPE_INVALID; collation_connection_ = CS_TYPE_INVALID; collation_database_ = CS_TYPE_INVALID; } bool ObExecEnv::operator==(const ObExecEnv& other) const { return sql_mode_ == other.sql_mode_ && charset_client_ == other.charset_client_ && collation_connection_ == other.collation_connection_ && collation_database_ == other.collation_database_; } bool ObExecEnv::operator!=(const ObExecEnv& other) const { return !(*this == other); } int ObExecEnv::gen_exec_env(const ObBasicSessionInfo& session, char* buf, int64_t len, int64_t& pos) { int ret = OB_SUCCESS; ObObj val; for (int64_t i = 0; OB_SUCC(ret) && i < MAX_ENV; ++i) { int64_t size = 0; val.reset(); if (OB_FAIL(session.get_sys_variable(ExecEnvMap[i], val))) { LOG_WARN("failed to get sys_variable", K(ExecEnvMap[i]), K(ret)); } else if (OB_FAIL(val.print_plain_str_literal(buf + pos, len - pos, size))) { LOG_WARN("fail to encode obj", K(i), K(buf + pos), K(len), K(pos), K(val), K(ret)); } else { pos += size; buf[pos++] = ','; } } return ret; } int ObExecEnv::get_exec_env(const ObString& exec_env, ExecEnvType type, ObString& value) { int ret = OB_SUCCESS; if (exec_env.empty()) { ret = common::OB_ERR_UNEXPECTED; LOG_WARN("Invalid exec_env", K(exec_env), K(type), K(ret)); } else { ObString result; ObString start = exec_env; const char* end = NULL; int64_t i = 0; while (!start.empty() && i++ < type) { start = start.after(','); } end = start.find(','); value.assign(start.ptr(), static_cast(end - start.ptr())); } return ret; } #define SET_ENV_VALUE(env, type) \ do { \ int64_t value = 0; \ int64_t pos = 0; \ if (OB_FAIL(extract_int(value_str, 0, pos, value))) { \ LOG_WARN("Failed to extract int", K(value_str), K(ret)); \ } else { \ env = static_cast(value); \ } \ } while (0) int ObExecEnv::init(const ObString& exec_env) { int ret = OB_SUCCESS; ObString value_str; for (int64_t i = 0; OB_SUCC(ret) && i < MAX_ENV; ++i) { value_str.reset(); if (OB_FAIL(get_exec_env(exec_env, static_cast(i), value_str))) { LOG_WARN("failed to get exec_env", K(exec_env), K(i), K(ret)); } else { switch (i) { case SQL_MODE: { SET_ENV_VALUE(sql_mode_, ObSQLMode); } break; case CHARSET_CLIENT: { SET_ENV_VALUE(charset_client_, ObCollationType); } break; case COLLATION_CONNECTION: { SET_ENV_VALUE(collation_connection_, ObCollationType); } break; case COLLATION_DATABASE: { SET_ENV_VALUE(collation_database_, ObCollationType); } break; default: { ret = common::OB_ERR_UNEXPECTED; LOG_WARN("Invalid env type", K(exec_env), K(i), K(ret)); } break; } } } return ret; } int ObExecEnv::load(ObBasicSessionInfo& session) { int ret = OB_SUCCESS; ObObj val; for (int64_t i = 0; OB_SUCC(ret) && i < MAX_ENV; ++i) { val.reset(); if (OB_FAIL(session.get_sys_variable(ExecEnvMap[i], val))) { LOG_WARN("failed to get sys_variable", K(ExecEnvMap[i]), K(ret)); } else { switch (i) { case SQL_MODE: { sql_mode_ = static_cast(val.get_int()); } break; case CHARSET_CLIENT: { charset_client_ = static_cast(val.get_int()); } break; case COLLATION_CONNECTION: { collation_connection_ = static_cast(val.get_int()); } break; case COLLATION_DATABASE: { collation_database_ = static_cast(val.get_int()); } break; default: { ret = common::OB_ERR_UNEXPECTED; LOG_WARN("Invalid env type", K(i), K(ret)); } break; } } } return ret; } int ObExecEnv::store(ObBasicSessionInfo& session) { int ret = OB_SUCCESS; ObObj val; for (int64_t i = 0; OB_SUCC(ret) && i < MAX_ENV; ++i) { val.reset(); switch (i) { case SQL_MODE: { val.set_uint64(sql_mode_); } break; case CHARSET_CLIENT: { val.set_int(charset_client_); } break; case COLLATION_CONNECTION: { val.set_int(collation_connection_); } break; case COLLATION_DATABASE: { val.set_int(collation_database_); } break; default: { ret = common::OB_ERR_UNEXPECTED; LOG_WARN("Invalid env type", K(i), K(ret)); } break; } if (OB_SUCC(ret)) { if (OB_FAIL(session.update_sys_variable(ExecEnvMap[i], val))) { LOG_WARN("failed to get sys_variable", K(ExecEnvMap[i]), K(ret)); } } } return ret; } } // end of namespace sql } // end of namespace oceanbase