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提交 a0ff8aaa 编写于 作者: J jz0 提交者： wangzelin.wzl
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Patch bug fixes to opensource branch.

上级 10799a59
展开全部 隐藏空白更改
内联 并排
Showing with 523 addition and 764 deletion
src/sql/optimizer/ob_log_table_scan.cpp
浏览文件 @ a0ff8aaa
......@@ -685,9 +685,12 @@ int ObLogTableScan::extract_access_exprs(
} else if (OB_ISNULL(expr)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("expr is null", K(col_idx), K(ret));
} else if (OB_FAIL(expr->formalize(opt_ctx->get_session_info()))) {
LOG_WARN("failed to formalize the new expr", K(ret));
} else { /*do nothing*/
} else {
expr->set_ref_id(get_table_id(), column_schema->get_column_id());
if (OB_FAIL(expr->formalize(opt_ctx->get_session_info()))) {
LOG_WARN("failed to formalize the new expr", K(ret));
} else { /*do nothing*/
}
}
if (OB_SUCC(ret)) {
if (OB_FAIL(rowkey_exprs.push_back(expr))) {
......
src/sql/optimizer/ob_log_temp_table_insert.cpp
浏览文件 @ a0ff8aaa
......@@ -43,8 +43,10 @@ int ObLogTempTableInsert::allocate_exchange_post(AllocExchContext* ctx)
LOG_WARN("get unexpected null", K(child), K(ret));
} else if (child->get_sharding_info().is_distributed()) {
sharding_info_.set_location_type(child->get_sharding_info().get_location_type());
} else {
ret = sharding_info_.copy_with_part_keys(child->get_sharding_info());
} else if (OB_FAIL(sharding_info_.copy_with_part_keys(child->get_sharding_info()))) {
LOG_WARN("failed to copy sharding info", K(ret));
} else if (sharding_info_.is_match_all()) {
sharding_info_.set_location_type(OB_TBL_LOCATION_LOCAL);
}
return ret;
}
......
src/sql/optimizer/ob_optimizer_util.cpp
浏览文件 @ a0ff8aaa
......@@ -666,6 +666,8 @@ int ObOptimizerUtil::compute_const_exprs(
LOG_WARN("failed to push back expr", K(ret));
} else { /*do nothing*/
}
} else if (T_BOOL == const_expr->get_expr_type()) {
// is true/false will not be regarded as const
} else if (OB_FAIL(add_var_to_array_no_dup(const_exprs, common_expr))) {
LOG_WARN("failed to push back expr", K(ret));
} else { /*do nothing*/
......
src/sql/rewrite/ob_transform_or_expansion.cpp
浏览文件 @ a0ff8aaa
......@@ -647,7 +647,6 @@ int ObTransformOrExpansion::adjust_or_expansion_stmt(const int64_t transformed_e
ObRawExprFactory* expr_factory = NULL;
ObRawExpr* transformed_expr = NULL;
ObSEArray<ObQueryRefRawExpr*, 4> removed_subqueries;
ObSEArray<ObQueryRefRawExpr*, 4> need_add_subqueries;
if (OB_ISNULL(ctx_) || OB_ISNULL(session_info = ctx_->session_info_) ||
OB_ISNULL(expr_factory = ctx_->expr_factory_)) {
ret = OB_INVALID_ARGUMENT;
......@@ -667,31 +666,22 @@ int ObTransformOrExpansion::adjust_or_expansion_stmt(const int64_t transformed_e
LOG_WARN("null transformed expr", K(ret));
} else if (OB_FAIL(or_expansion_stmt->get_condition_exprs().remove(transformed_expr_pos))) {
LOG_WARN("failed to remove condition expr", K(ret));
} else if (transformed_expr->has_flag(CNT_SUB_QUERY) &&
OB_FAIL(ObTransformUtils::extract_query_ref_expr(transformed_expr, removed_subqueries))) {
LOG_WARN("failed to extract query ref expr", K(ret));
} else if (OB_FAIL(ObOptimizerUtil::remove_item(or_expansion_stmt->get_subquery_exprs(), removed_subqueries))) {
LOG_WARN("failed to remove subquery exprs", K(ret));
} else if (T_OP_OR == transformed_expr->get_expr_type()) {
ObSEArray<ObRawExpr*, 4> generated_exprs;
if (OB_FAIL(create_expr_for_or_expr(
*transformed_expr, param_pos, can_union_distinct, generated_exprs, need_add_subqueries))) {
*transformed_expr, param_pos, can_union_distinct, generated_exprs))) {
LOG_WARN("failed to create expr", K(ret));
} else if (OB_FAIL(append(or_expansion_stmt->get_condition_exprs(), generated_exprs))) {
LOG_WARN("failed to append expr", K(ret));
} else if (OB_FAIL(append(or_expansion_stmt->get_subquery_exprs(), need_add_subqueries))) {
LOG_WARN("failed to append expr", K(ret));
} else { /*do nothing*/
}
} else if (T_OP_IN == transformed_expr->get_expr_type()) {
ObSEArray<ObRawExpr*, 4> generated_exprs;
if (OB_FAIL(create_expr_for_in_expr(
*transformed_expr, param_pos, can_union_distinct, generated_exprs, need_add_subqueries))) {
*transformed_expr, param_pos, can_union_distinct, generated_exprs))) {
LOG_WARN("failed to create expr", K(ret), K(generated_exprs));
} else if (OB_FAIL(append(or_expansion_stmt->get_condition_exprs(), generated_exprs))) {
LOG_WARN("failed to append exprs", K(ret));
} else if (OB_FAIL(append(or_expansion_stmt->get_subquery_exprs(), need_add_subqueries))) {
LOG_WARN("failed to append expr", K(ret));
} else { /*do nothing*/
}
} else {
......@@ -701,13 +691,31 @@ int ObTransformOrExpansion::adjust_or_expansion_stmt(const int64_t transformed_e
if (OB_SUCC(ret)) {
if (OB_FAIL(or_expansion_stmt->formalize_stmt(session_info))) {
LOG_WARN("failed to formalize stmt", K(ret));
} else {
// clean unused subqueries
ObSEArray<ObRawExpr*, 4> relation_exprs;
ObSEArray<ObQueryRefRawExpr *, 8> used_subquery_exprs;
if (OB_FAIL(or_expansion_stmt->get_relation_exprs(relation_exprs))) {
LOG_WARN("failed to get relation exprs");
} else if (OB_FAIL(ObTransformUtils::extract_query_ref_expr(relation_exprs, used_subquery_exprs))) {
LOG_WARN("failed to get query exprs");
} else {
for (int64_t i = 0; OB_SUCC(ret) && i < or_expansion_stmt->get_subquery_exprs().count(); ++i) {
ObQueryRefRawExpr *expr = or_expansion_stmt->get_subquery_exprs().at(i);
if (ObOptimizerUtil::find_item(used_subquery_exprs, expr)) {
// do nothing
} else if (OB_FAIL(ObOptimizerUtil::remove_item(or_expansion_stmt->get_subquery_exprs(), expr))) {
LOG_WARN("failed to remove item from subquery exprs", K(ret));
}
}
}
}
}
return ret;
}
int ObTransformOrExpansion::create_expr_for_in_expr(const ObRawExpr& transformed_expr, const int64_t param_pos,
bool can_union_distinct, ObIArray<ObRawExpr*>& generated_exprs, ObIArray<ObQueryRefRawExpr*>& subqueries)
bool can_union_distinct, ObIArray<ObRawExpr*>& generated_exprs)
{
int ret = OB_SUCCESS;
const ObRawExpr* left_expr = NULL;
......@@ -735,8 +743,6 @@ int ObTransformOrExpansion::create_expr_for_in_expr(const ObRawExpr& transformed
} else if (OB_UNLIKELY(param_pos < 0) || OB_UNLIKELY(param_pos >= right_expr->get_param_count())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected expr pos", K(param_pos), K(right_expr->get_param_count()), K(ret));
} else if (OB_FAIL(ObTransformUtils::extract_query_ref_expr(const_cast<ObRawExpr*>(left_expr), subqueries))) {
LOG_WARN("failed to extract query ref expr", K(ret));
}
for (int64_t i = can_union_distinct ? param_pos : 0; OB_SUCC(ret) && i <= param_pos; ++i) {
if (OB_FAIL(ObRawExprUtils::create_equal_expr(
......@@ -758,7 +764,7 @@ int ObTransformOrExpansion::create_expr_for_in_expr(const ObRawExpr& transformed
}
int ObTransformOrExpansion::create_expr_for_or_expr(ObRawExpr& transformed_expr, const int64_t param_pos,
bool can_union_distinct, common::ObIArray<ObRawExpr*>& generated_exprs, ObIArray<ObQueryRefRawExpr*>& subqueries)
bool can_union_distinct, common::ObIArray<ObRawExpr*>& generated_exprs)
{
int ret = OB_SUCCESS;
ObRawExprFactory* expr_factory = NULL;
......@@ -780,16 +786,12 @@ int ObTransformOrExpansion::create_expr_for_or_expr(ObRawExpr& transformed_expr,
LOG_WARN("null expr", K(ret));
} else if (i == param_pos) {
temp_expr = expr;
if (OB_FAIL(ObTransformUtils::extract_query_ref_expr(expr, subqueries))) {
LOG_WARN("failed to extract query ref expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::flatten_expr(temp_expr, generated_exprs))) {
if (OB_FAIL(ObTransformUtils::flatten_expr(temp_expr, generated_exprs))) {
LOG_WARN("failed to flatten expr", K(ret));
} else { /*do nothing*/
}
} else if (can_union_distinct) {
/*do nothing */
} else if (OB_FAIL(ObTransformUtils::extract_query_ref_expr(expr, subqueries))) {
LOG_WARN("failed to extract query ref expr", K(ret));
} else if (OB_FAIL(ObRawExprUtils::build_lnnvl_expr(*expr_factory, expr, temp_expr))) {
LOG_WARN("failed to create lnnvl expr", K(ret));
} else if (OB_FAIL(generated_exprs.push_back(temp_expr))) {
......
src/sql/rewrite/ob_transform_or_expansion.h
浏览文件 @ a0ff8aaa
......@@ -70,9 +70,9 @@ private:
int adjust_or_expansion_stmt(const int64_t transformed_expr_pos, const int64_t param_pos, bool can_union_distinct,
ObSelectStmt*& or_expansion_stmt);
int create_expr_for_in_expr(const ObRawExpr& transformed_expr, const int64_t param_pos, bool can_union_distinct,
common::ObIArray<ObRawExpr*>& generated_exprs, common::ObIArray<ObQueryRefRawExpr*>& subqueries);
common::ObIArray<ObRawExpr*>& generated_exprs);
int create_expr_for_or_expr(ObRawExpr& transformed_expr, const int64_t param_pos, bool can_union_distinct,
common::ObIArray<ObRawExpr*>& generated_exprs, common::ObIArray<ObQueryRefRawExpr*>& subqueries);
common::ObIArray<ObRawExpr*>& generated_exprs);
int preprocess_or_condition(ObSelectStmt* select_stmt, ObRawExpr* expr, bool& can_union_distinct, bool& spj_is_unique,
bool& skip_this_cond, const bool is_topk);
......
src/sql/rewrite/ob_transform_query_push_down.cpp
浏览文件 @ a0ff8aaa
......@@ -577,8 +577,6 @@ int ObTransformQueryPushDown::push_down_stmt_exprs(ObSelectStmt* select_stmt, Ob
LOG_WARN("view stmt append subquery failed", K(ret));
} else if (OB_FAIL(adjust_stmt_hints(select_stmt, view_stmt))) {
LOG_WARN("failed to adjust hints", K(ret));
} else if (OB_FAIL(view_stmt->adjust_subquery_list())) {
LOG_WARN("failed to adjust subquery list", K(ret));
} else if (OB_FAIL(view_stmt->adjust_subquery_stmt_parent(select_stmt, view_stmt))) {
LOG_WARN("failed to adjust subquery stmt parent", K(ret));
} else {
......
src/sql/rewrite/ob_transform_simplify.cpp
浏览文件 @ a0ff8aaa
......@@ -722,7 +722,8 @@ int ObTransformSimplify::replace_is_null_condition(ObDMLStmt* stmt, bool& trans_
if (OB_ISNULL(cond = stmt->get_condition_expr(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("condition expr is null", K(ret));
} else if (OB_FAIL(inner_replace_is_null_condition(stmt, stmt->get_condition_exprs().at(i), is_happened))) {
} else if (OB_FAIL(inner_replace_is_null_condition(stmt, stmt->get_condition_exprs().at(i),
ObTransformUtils::NULLABLE_SCOPE::NS_WHERE, is_happened))) {
LOG_WARN("failed to replace is null expr", K(ret));
} else {
trans_happened |= is_happened;
......@@ -731,7 +732,8 @@ int ObTransformSimplify::replace_is_null_condition(ObDMLStmt* stmt, bool& trans_
if (OB_SUCC(ret) && stmt->is_select_stmt()) {
ObSelectStmt* sel_stmt = static_cast<ObSelectStmt*>(stmt);
for (int64_t i = 0; OB_SUCC(ret) && i < sel_stmt->get_having_expr_size(); ++i) {
if (OB_FAIL(inner_replace_is_null_condition(sel_stmt, sel_stmt->get_having_exprs().at(i), is_happened))) {
if (OB_FAIL(inner_replace_is_null_condition(sel_stmt, sel_stmt->get_having_exprs().at(i),
ObTransformUtils::NULLABLE_SCOPE::NS_TOP, is_happened))) {
LOG_WARN("failed to replace is null expr", K(ret));
} else {
trans_happened |= is_happened;
......@@ -742,7 +744,7 @@ int ObTransformSimplify::replace_is_null_condition(ObDMLStmt* stmt, bool& trans_
return ret;
}
int ObTransformSimplify::inner_replace_is_null_condition(ObDMLStmt* stmt, ObRawExpr*& expr, bool& trans_happened)
int ObTransformSimplify::inner_replace_is_null_condition(ObDMLStmt* stmt, ObRawExpr*& expr, int nullable_scope, bool& trans_happened)
{
int ret = OB_SUCCESS;
bool is_happened = false;
......@@ -764,7 +766,7 @@ int ObTransformSimplify::inner_replace_is_null_condition(ObDMLStmt* stmt, ObRawE
if (OB_ISNULL(temp = op_expr->get_param_expr(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("null expr", K(ret));
} else if (OB_FAIL(SMART_CALL(inner_replace_is_null_condition(stmt, temp, is_happened)))) {
} else if (OB_FAIL(SMART_CALL(inner_replace_is_null_condition(stmt, temp, nullable_scope, is_happened)))) {
LOG_WARN("failed to replace is null expr", K(ret));
} else {
trans_happened |= is_happened;
......@@ -775,7 +777,7 @@ int ObTransformSimplify::inner_replace_is_null_condition(ObDMLStmt* stmt, ObRawE
if (OB_SUCC(ret) && (T_OP_IS == expr->get_expr_type() || T_OP_IS_NOT == expr->get_expr_type())) {
// do transforamtion for its own exprs
if (OB_FAIL(do_replace_is_null_condition(stmt, expr, is_happened))) {
if (OB_FAIL(do_replace_is_null_condition(stmt, expr, nullable_scope, is_happened))) {
LOG_WARN("failed to replace is null condition", K(ret));
} else {
trans_happened |= is_happened;
......@@ -794,7 +796,7 @@ int ObTransformSimplify::inner_replace_is_null_condition(ObDMLStmt* stmt, ObRawE
return ret;
}
int ObTransformSimplify::do_replace_is_null_condition(ObDMLStmt* stmt, ObRawExpr*& expr, bool& trans_happened)
int ObTransformSimplify::do_replace_is_null_condition(ObDMLStmt* stmt, ObRawExpr*& expr, int nullable_scope, bool& trans_happened)
{
int ret = OB_SUCCESS;
trans_happened = false;
......@@ -820,6 +822,7 @@ int ObTransformSimplify::do_replace_is_null_condition(ObDMLStmt* stmt, ObRawExpr
is_expected = true;
} else if (child_0->is_column_ref_expr()) {
bool sql_auto_is_null = false;
bool found = false;
const ObColumnRefRawExpr* col_expr = static_cast<const ObColumnRefRawExpr*>(child_0);
uint64_t table_id = col_expr->get_table_id();
if (OB_FAIL(ctx_->session_info_->get_sql_auto_is_null(sql_auto_is_null))) {
......@@ -830,6 +833,11 @@ int ObTransformSimplify::do_replace_is_null_condition(ObDMLStmt* stmt, ObRawExpr
!col_expr->get_result_type().is_date() && !(sql_auto_is_null && col_expr->is_auto_increment()))) {
if (OB_FAIL(is_expected_table_for_replace(stmt, table_id, is_expected))) {
LOG_WARN("fail to judge expected table", K(ret), K(table_id), K(is_expected));
} else if (is_expected && OB_FAIL(ObTransformUtils::check_nullable_exprs_in_groupby(stmt,
const_cast<ObColumnRefRawExpr*>(col_expr), nullable_scope, found))) {
LOG_WARN("fail to checkin nullable in groupby", K(ret), K(table_id), K(is_expected));
} else if (found) {
is_expected = false;
}
}
}
......@@ -1008,19 +1016,18 @@ int ObTransformSimplify::is_expected_table_for_replace(ObDMLStmt* stmt, uint64_t
LOG_WARN("fail to judge expected table", K(ret));
} else { /*do nothing*/
}
} else {
// table from current stmt
if (table_item->is_basic_table() || table_item->is_generated_table()) {
bool is_on_null_side = false;
if (OB_FAIL(ObOptimizerUtil::is_table_on_null_side(stmt, table_item->table_id_, is_on_null_side))) {
LOG_WARN("check is table on null side failed", K(ret), K(*table_item));
} else {
is_expected = !is_on_null_side;
}
} else if (table_item->is_basic_table()) {
bool is_on_null_side = false;
if (OB_FAIL(ObOptimizerUtil::is_table_on_null_side(stmt, table_item->table_id_, is_on_null_side))) {
LOG_WARN("check is table on null side failed", K(ret), K(*table_item));
} else {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected table item type", K_(table_item->type));
is_expected = !is_on_null_side;
}
} else if (table_item->is_generated_table()) {
is_expected = false;
} else {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected table item type", K_(table_item->type));
}
return ret;
}
......
src/sql/rewrite/ob_transform_simplify.h
浏览文件 @ a0ff8aaa
......@@ -38,8 +38,8 @@ private:
int having_filter_can_be_pushed_down(
const ObRawExpr* having_filter, const ObSelectStmt& select_stmt, const bool has_rownum, bool& can_be);
int replace_is_null_condition(ObDMLStmt* stmt, bool& trans_happened);
int inner_replace_is_null_condition(ObDMLStmt* stmt, ObRawExpr*& expr, bool& trans_happened);
int do_replace_is_null_condition(ObDMLStmt* stmt, ObRawExpr*& expr, bool& trans_happened);
int inner_replace_is_null_condition(ObDMLStmt* stmt, ObRawExpr*& expr, int nullalbe_scope, bool& trans_happened);
int do_replace_is_null_condition(ObDMLStmt* stmt, ObRawExpr*& expr, int nullalbe_scope, bool& trans_happened);
int replace_op_null_condition(ObDMLStmt* stmt, bool& trans_happened);
int replace_cmp_null_condition(
ObRawExpr*& expr, const ObDMLStmt& stmt, const ParamStore& param_store, bool& trans_happened);
......
src/sql/rewrite/ob_transform_utils.cpp
浏览文件 @ a0ff8aaa
......@@ -2091,6 +2091,63 @@ int ObTransformUtils::find_expr(const ObIArray<const ObRawExpr*>& source, const
return ret;
}
int ObTransformUtils::check_nullable_exprs_in_groupby(ObDMLStmt *stmt, ObRawExpr *expr, int nullable_scope, bool &found)
{
int ret = OB_SUCCESS;
found = false;
ObSelectStmt *select_stmt = NULL;
if (OB_ISNULL(stmt) || OB_ISNULL(expr)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("invalid input", K(stmt), K(expr));
} else if (!stmt->is_select_stmt()) {
// do nothing
} else if (FALSE_IT(select_stmt = static_cast<ObSelectStmt*>(stmt))) {
// do nothing
} else if (NULLABLE_SCOPE::NS_TOP == nullable_scope &&
OB_FAIL(find_expr_in_groupby_clause(select_stmt, expr, found))) {
LOG_WARN("failed to find expr in group by clause", K(ret));
} else if (!found && NULLABLE_SCOPE::NS_TOP == nullable_scope &&
OB_FAIL(find_expr_in_scala_groupby(select_stmt, expr, found))) {
LOG_WARN("failed to find expr in scala group by", K(ret));
} else {
// todo: other nullable scenarios
}
return ret;
}
int ObTransformUtils::find_expr_in_groupby_clause(ObSelectStmt *select_stmt, ObRawExpr *column_expr, bool &found)
{
int ret = OB_SUCCESS;
found = false;
if (OB_ISNULL(select_stmt) || OB_ISNULL(column_expr)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("invalid input", K(select_stmt), K(column_expr));
// case: select c1 + c2 from t group by rollup (c1+c2);
// can't deduce c1 + c2 as not null even if c1 and c2 are not null
//const ObIArray<ObRawExpr*> &rollup_exprs = select_stmt->get_rollup_exprs();
} else if (ObOptimizerUtil::find_item(select_stmt->get_rollup_exprs(), column_expr)) {
found = true;
}
return ret;
}
int ObTransformUtils::find_expr_in_scala_groupby(ObSelectStmt *select_stmt, ObRawExpr *expr, bool &found)
{
int ret = OB_SUCCESS;
found = false;
if (OB_ISNULL(select_stmt) || OB_ISNULL(expr)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("invalid input", K(select_stmt), K(expr));
} else if (select_stmt->is_scala_group_by() &&
(expr->is_column_ref_expr() ||
(expr->is_aggr_expr() && T_FUN_COUNT != expr->get_expr_type()))) {
// case: select * from t1 where (c1, c2) not in (select pk, max(pk) from t2);
// can't deduce pk and max(pk) as not null when t2 is empty
found = true;
}
return ret;
}
/**
* column <=> ? or ? <=> column
* column is ? or column != ?
......@@ -7045,29 +7102,28 @@ int ObTransformUtils::extract_column_contained_expr(
} else if (is_stack_overflow) {
ret = OB_SIZE_OVERFLOW;
LOG_WARN("too deep recursive", K(ret));
} else if (!expr->get_expr_levels().has_member(stmt_level)) {
} else if (!(expr->get_expr_levels().has_member(stmt_level) || expr->has_flag(CNT_SUB_QUERY))) {
/*do nothing */
} else if (!expr->is_query_ref_expr() && !expr->get_relation_ids().is_empty()) {
if (!expr->is_column_ref_expr() && !expr->is_aggr_expr() && !expr->is_win_func_expr() &&
expr->get_expr_levels().num_members() == 1 && !ObRawExprUtils::find_expr(contain_column_exprs, expr) &&
OB_FAIL(contain_column_exprs.push_back(expr))) {
LOG_WARN("failed to push back expr", K(ret));
} else {
for (int64_t i = 0; OB_SUCC(ret) && i < expr->get_param_count(); ++i) {
if (OB_FAIL(
SMART_CALL(extract_column_contained_expr(expr->get_param_expr(i), stmt_level, contain_column_exprs)))) {
LOG_WARN("failed to extract column contained expr", K(ret));
} else { /*do nothing*/
}
}
}
} else if (expr->is_query_ref_expr()) {
if (OB_FAIL(extract_stmt_column_contained_expr(
} else if (expr->is_query_ref_expr() && expr->get_expr_level() == stmt_level) {
if (OB_FAIL(contain_column_exprs.push_back(expr))) {
LOG_WARN("failed to push back expr into column array", K(ret));
} else if (OB_FAIL(extract_stmt_column_contained_expr(
static_cast<ObQueryRefRawExpr*>(expr)->get_ref_stmt(), stmt_level, contain_column_exprs))) {
LOG_WARN("failed to extract stmt column contained expr", K(ret));
} else { /*do nothing*/
}
} else { /*do nothing*/
} else if (!expr->get_relation_ids().is_empty() && !expr->is_column_ref_expr() && !expr->is_aggr_expr() && !expr->is_win_func_expr() &&
expr->get_expr_levels().num_members() == 1 && !ObRawExprUtils::find_expr(contain_column_exprs, expr) &&
OB_FAIL(contain_column_exprs.push_back(expr))) {
LOG_WARN("failed to push back expr", K(ret));
} else {
for (int64_t i = 0; OB_SUCC(ret) && i < expr->get_param_count(); ++i) {
if (OB_FAIL(
SMART_CALL(extract_column_contained_expr(expr->get_param_expr(i), stmt_level, contain_column_exprs)))) {
LOG_WARN("failed to extract column contained expr", K(ret));
} else { /*do nothing*/
}
}
}
return ret;
}
......
src/sql/rewrite/ob_transform_utils.h
浏览文件 @ a0ff8aaa
......@@ -81,6 +81,14 @@ private:
};
public:
enum NULLABLE_SCOPE {
NS_FROM = 1 << 0,
NS_WHERE = 1 << 1,
NS_GROUPBY = 1 << 2,
NS_HAVING = 1 << 3,
NS_TOP = 1 << 4
};
static int is_correlated_expr(const ObRawExpr* expr, int32_t correlated_level, bool& is_correlated);
static int is_correlated_subquery(ObSelectStmt* subquery,
......@@ -268,6 +276,12 @@ public:
static int find_expr(const ObIArray<OrderItem>& source, const ObRawExpr* target, bool& bret);
static int check_nullable_exprs_in_groupby(ObDMLStmt *stmt, ObRawExpr *expr, int nullable_scope, bool &found);
static int find_expr_in_groupby_clause(ObSelectStmt *select_stmt, ObRawExpr *column_expr, bool &found);
static int find_expr_in_scala_groupby(ObSelectStmt *select_stmt, ObRawExpr *expr, bool &found);
/**
* @brief is_null_propagate_type
* white list for null propagate expr
......
unittest/sql/rewrite/result/test_transformer_plan_after_el.result
浏览文件 @ a0ff8aaa
......@@ -165,9 +165,9 @@ SQL: select * from t2 left join (select * from t1) as v on t2.c1 = v.c2 where (
=========================================
|ID|OPERATOR |NAME|EST. ROWS|COST|
-----------------------------------------
|0 |NESTED-LOOP JOIN| |0 |121 |
|1 | SUBPLAN SCAN |v |0 |121 |
|2 | TABLE SCAN |t1 |100 |90 |
|0 |NESTED-LOOP JOIN| |0 |140 |
|1 | SUBPLAN SCAN |v |0 |140 |
|2 | TABLE SCAN |t1 |0 |140 |
|3 | TABLE GET |t2 |1 |36 |
=========================================
......@@ -175,9 +175,9 @@ Outputs & filters:
-------------------------------------
0 - output([t2.c1], [t2.c2], [t2.c3], [v.c1], [v.c2]), filter(nil),
conds(nil), nl_params_([v.c2])
1 - output([v.c2], [v.c1]), filter([(T_OP_IS, v.c2, NULL, 0)], [? > (T_OP_IS_NOT, v.c2, NULL, 0)]),
1 - output([v.c2], [v.c1]), filter(nil),
access([v.c2], [v.c1])
2 - output([t1.c1], [t1.c2]), filter(nil),
2 - output([t1.c1], [t1.c2]), filter([(T_OP_IS, t1.c2, NULL, 0)], [? > (T_OP_IS_NOT, t1.c2, NULL, 0)], [(T_OP_IS_NOT, t1.c1, NULL, 0)]),
access([t1.c1], [t1.c2]), partitions(p0)
3 - output([t2.c1], [t2.c2], [t2.c3]), filter(nil),
access([t2.c1], [t2.c2], [t2.c3]), partitions(p0)
......
unittest/sql/rewrite/result/test_transformer_plan_after_trans_aggr.result
浏览文件 @ a0ff8aaa
......@@ -2025,23 +2025,19 @@ Outputs & filters:
*************** Case 84 ***************
SQL: select max(c3) from t9 where c2 is TRUE;
======================================================
|ID|OPERATOR |NAME |EST. ROWS|COST|
------------------------------------------------------
|0 |SCALAR GROUP BY| |1 |37 |
|1 | SUBPLAN SCAN |VIEW1 |1 |37 |
|2 | TABLE SCAN |t9(idx_t9,Reverse)|1 |37 |
======================================================
==============================================
|ID|OPERATOR |NAME |EST. ROWS|COST|
----------------------------------------------
|0 |SCALAR GROUP BY| |1 |97 |
|1 | TABLE SCAN |t9(idx_t9)|99 |78 |
==============================================
Outputs & filters:
-------------------------------------
0 - output([T_FUN_MAX(VIEW1.c3)]), filter(nil),
group(nil), agg_func([T_FUN_MAX(VIEW1.c3)])
1 - output([VIEW1.c3]), filter(nil),
access([VIEW1.c3])
2 - output([t9.c3]), filter([(T_OP_IS, t9.c2, 1, 0)], [(T_OP_IS_NOT, t9.c3, NULL, 0)]),
access([t9.c2], [t9.c3]), partitions(p0),
limit(1), offset(nil)
0 - output([T_FUN_MAX(t9.c3)]), filter(nil),
group(nil), agg_func([T_FUN_MAX(t9.c3)])
1 - output([t9.c3]), filter([(T_OP_IS, t9.c2, 1, 0)]),
access([t9.c2], [t9.c3]), partitions(p0)
*************** Case 85 ***************
SQL: select max(c3) from t9 where c2 = 1 and c1 = 1;
......
unittest/sql/rewrite/result/test_transformer_stmt_after_el.result
浏览文件 @ a0ff8aaa
......@@ -12095,6 +12095,144 @@ SQL: select * from t2 left join (select * from t1) as v on t2.c1 = v.c2 where (
]
}
]
},
{
"item_type":"T_OP_IS_NOT",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":1,
"scale":0
},
"flag":1,
"calc_type": {
"type":"DECIMAL",
"collation":"binary",
"coercibility":"NUMERIC"
}
},
"expr_info": [
"CNT_CONST",
"CNT_COLUMN"
],
"rel_id": [
2
],
"expr_levels": [
0
],
"children": [
{
"item_type":"T_REF_COLUMN",
"result_type": {
"meta": {
"type":"INT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":11,
"scale":0
},
"flag":16387,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_COLUMN",
"CNT_COLUMN"
],
"rel_id": [
2
],
"table_id":-3,
"column_id":16,
"database_name":"",
"table_name":"v",
"synonym_name":"",
"synonym_db_name":"",
"column_name":"c1",
"expr_level":0,
"expr_levels": [
0
],
"column_flags":0,
"enum_set_values": [
],
"is_lob_column":false,
"is_unpivot_mocked_column":false,
"is_hidden":false
},
{
"item_type":"T_NULL",
"result_type": {
"meta": {
"type":"NULL",
"collation":"binary",
"coercibility":"IGNORABLE"
},
"accuracy": {
"length":0,
"precision":-1,
"scale":-1
},
"flag":0,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"CNT_CONST"
],
"rel_id": [
],
"value": {
"NULL":"NULL"
}
},
{
"item_type":"T_BOOL",
"result_type": {
"meta": {
"type":"TINYINT",
"collation":"binary",
"coercibility":"NUMERIC"
},
"accuracy": {
"length":-1,
"precision":-1,
"scale":-1
},
"flag":1,
"calc_type": {
"type":"NULL",
"collation":"invalid_type",
"coercibility":"INVALID"
}
},
"expr_info": [
"IS_CONST",
"CNT_CONST"
],
"rel_id": [
],
"value": {
"TINYINT":0
}
}
]
},
{
"item_type":"T_OP_EQ",
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