Merge pull request #15978 from taosdata/feature/3.0_wxy

enh: show command optimize

include/common/ttokendef.h

@@ -154,7 +154,7 @@
 #define TK_ACCOUNTS             136
 #define TK_APPS                 137
 #define TK_CONNECTIONS          138
-#define TK_LICENCE              139
+#define TK_LICENCES             139
 #define TK_GRANTS               140
 #define TK_QUERIES              141
 #define TK_SCORES               142
@@ -266,12 +266,60 @@
 #define TK_OFFSET               248
 #define TK_ASC                  249
 #define TK_NULLS                250
-#define TK_ID                   251
-#define TK_NK_BITNOT            252
-#define TK_VALUES               253
-#define TK_IMPORT               254
-#define TK_NK_SEMI              255
-#define TK_FILE                 256
+#define TK_ABORT                251
+#define TK_AFTER                252
+#define TK_ATTACH               253
+#define TK_BEFORE               254
+#define TK_BEGIN                255
+#define TK_BITAND               256
+#define TK_BITNOT               257
+#define TK_BITOR                258
+#define TK_BLOCKS               259
+#define TK_CHANGE               260
+#define TK_COMMA                261
+#define TK_COMPACT              262
+#define TK_CONCAT               263
+#define TK_CONFLICT             264
+#define TK_COPY                 265
+#define TK_DEFERRED             266
+#define TK_DELIMITERS           267
+#define TK_DETACH               268
+#define TK_DIVIDE               269
+#define TK_DOT                  270
+#define TK_EACH                 271
+#define TK_END                  272
+#define TK_FAIL                 273
+#define TK_FILE                 274
+#define TK_FOR                  275
+#define TK_GLOB                 276
+#define TK_ID                   277
+#define TK_IMMEDIATE            278
+#define TK_IMPORT               279
+#define TK_INITIALLY            280
+#define TK_INSTEAD              281
+#define TK_ISNULL               282
+#define TK_KEY                  283
+#define TK_NK_BITNOT            284
+#define TK_NK_SEMI              285
+#define TK_NOTNULL              286
+#define TK_OF                   287
+#define TK_PLUS                 288
+#define TK_PRIVILEGE            289
+#define TK_RAISE                290
+#define TK_REPLACE              291
+#define TK_RESTRICT             292
+#define TK_ROW                  293
+#define TK_SEMI                 294
+#define TK_STAR                 295
+#define TK_STATEMENT            296
+#define TK_STRING               297
+#define TK_TIMES                298
+#define TK_UPDATE               299
+#define TK_VALUES               300
+#define TK_VARIABLE             301
+#define TK_VIEW                 302
+#define TK_VNODES               303
+#define TK_WAL                  304
 
 #define TK_NK_SPACE   300
 #define TK_NK_COMMENT 301

include/libs/nodes/nodes.h

@@ -172,27 +172,24 @@ typedef enum ENodeType {
   QUERY_NODE_SHOW_TABLES_STMT,
   QUERY_NODE_SHOW_TAGS_STMT,
   QUERY_NODE_SHOW_USERS_STMT,
-  QUERY_NODE_SHOW_LICENCE_STMT,
+  QUERY_NODE_SHOW_LICENCES_STMT,
   QUERY_NODE_SHOW_VGROUPS_STMT,
   QUERY_NODE_SHOW_TOPICS_STMT,
   QUERY_NODE_SHOW_CONSUMERS_STMT,
-  QUERY_NODE_SHOW_SUBSCRIBES_STMT,
-  QUERY_NODE_SHOW_SMAS_STMT,
-  QUERY_NODE_SHOW_CONFIGS_STMT,
   QUERY_NODE_SHOW_CONNECTIONS_STMT,
   QUERY_NODE_SHOW_QUERIES_STMT,
-  QUERY_NODE_SHOW_VNODES_STMT,
   QUERY_NODE_SHOW_APPS_STMT,
-  QUERY_NODE_SHOW_SCORES_STMT,
   QUERY_NODE_SHOW_VARIABLES_STMT,
-  QUERY_NODE_SHOW_LOCAL_VARIABLES_STMT,
   QUERY_NODE_SHOW_DNODE_VARIABLES_STMT,
+  QUERY_NODE_SHOW_TRANSACTIONS_STMT,
+  QUERY_NODE_SHOW_SUBSCRIPTIONS_STMT,
   QUERY_NODE_SHOW_CREATE_DATABASE_STMT,
   QUERY_NODE_SHOW_CREATE_TABLE_STMT,
   QUERY_NODE_SHOW_CREATE_STABLE_STMT,
-  QUERY_NODE_SHOW_TRANSACTIONS_STMT,
   QUERY_NODE_SHOW_TABLE_DISTRIBUTED_STMT,
-  QUERY_NODE_SHOW_SUBSCRIPTIONS_STMT,
+  QUERY_NODE_SHOW_LOCAL_VARIABLES_STMT,
+  QUERY_NODE_SHOW_VNODES_STMT,
+  QUERY_NODE_SHOW_SCORES_STMT,
   QUERY_NODE_KILL_CONNECTION_STMT,
   QUERY_NODE_KILL_QUERY_STMT,
   QUERY_NODE_KILL_TRANSACTION_STMT,

source/libs/function/inc/builtins.h

@@ -49,7 +49,7 @@ typedef struct SBuiltinFuncDefinition {
 } SBuiltinFuncDefinition;
 
 extern const SBuiltinFuncDefinition funcMgtBuiltins[];
-extern const int                    funcMgtBuiltinsNum;
+extern const int32_t                funcMgtBuiltinsNum;
 
 #ifdef __cplusplus
 }

source/libs/nodes/src/nodesCodeFuncs.c

@@ -163,7 +163,7 @@ const char* nodesNodeName(ENodeType type) {
       return "ShowTagsStmt";
     case QUERY_NODE_SHOW_USERS_STMT:
       return "ShowUsersStmt";
-    case QUERY_NODE_SHOW_LICENCE_STMT:
+    case QUERY_NODE_SHOW_LICENCES_STMT:
       return "ShowGrantsStmt";
     case QUERY_NODE_SHOW_VGROUPS_STMT:
       return "ShowVgroupsStmt";
@@ -171,10 +171,6 @@ const char* nodesNodeName(ENodeType type) {
       return "ShowTopicsStmt";
     case QUERY_NODE_SHOW_CONSUMERS_STMT:
       return "ShowConsumersStmt";
-    case QUERY_NODE_SHOW_SUBSCRIBES_STMT:
-      return "ShowSubscribesStmt";
-    case QUERY_NODE_SHOW_SMAS_STMT:
-      return "ShowSmasStmt";
     case QUERY_NODE_SHOW_QUERIES_STMT:
       return "ShowQueriesStmt";
     case QUERY_NODE_SHOW_VNODES_STMT:

source/libs/nodes/src/nodesUtilFuncs.c

@@ -201,12 +201,10 @@ SNode* nodesMakeNode(ENodeType type) {
     case QUERY_NODE_SHOW_STREAMS_STMT:
     case QUERY_NODE_SHOW_TABLES_STMT:
     case QUERY_NODE_SHOW_USERS_STMT:
-    case QUERY_NODE_SHOW_LICENCE_STMT:
+    case QUERY_NODE_SHOW_LICENCES_STMT:
     case QUERY_NODE_SHOW_VGROUPS_STMT:
     case QUERY_NODE_SHOW_TOPICS_STMT:
     case QUERY_NODE_SHOW_CONSUMERS_STMT:
-    case QUERY_NODE_SHOW_SUBSCRIBES_STMT:
-    case QUERY_NODE_SHOW_SMAS_STMT:
     case QUERY_NODE_SHOW_CONNECTIONS_STMT:
     case QUERY_NODE_SHOW_QUERIES_STMT:
     case QUERY_NODE_SHOW_VNODES_STMT:
@@ -687,12 +685,10 @@ void nodesDestroyNode(SNode* pNode) {
     case QUERY_NODE_SHOW_STREAMS_STMT:
     case QUERY_NODE_SHOW_TABLES_STMT:
     case QUERY_NODE_SHOW_USERS_STMT:
-    case QUERY_NODE_SHOW_LICENCE_STMT:
+    case QUERY_NODE_SHOW_LICENCES_STMT:
     case QUERY_NODE_SHOW_VGROUPS_STMT:
     case QUERY_NODE_SHOW_TOPICS_STMT:
     case QUERY_NODE_SHOW_CONSUMERS_STMT:
-    case QUERY_NODE_SHOW_SUBSCRIBES_STMT:
-    case QUERY_NODE_SHOW_SMAS_STMT:
     case QUERY_NODE_SHOW_CONNECTIONS_STMT:
     case QUERY_NODE_SHOW_QUERIES_STMT:
     case QUERY_NODE_SHOW_VNODES_STMT:

source/libs/parser/inc/sql.y

@@ -391,8 +391,8 @@ cmd ::= SHOW STREAMS.
 cmd ::= SHOW ACCOUNTS.                                                            { pCxt->errCode = generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_EXPRIE_STATEMENT); }
 cmd ::= SHOW APPS.                                                                { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_APPS_STMT); }
 cmd ::= SHOW CONNECTIONS.                                                         { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_CONNECTIONS_STMT); }
-cmd ::= SHOW LICENCE.                                                             { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_LICENCE_STMT); }
-cmd ::= SHOW GRANTS.                                                              { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_LICENCE_STMT); }
+cmd ::= SHOW LICENCES.                                                            { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_LICENCES_STMT); }
+cmd ::= SHOW GRANTS.                                                              { pCxt->pRootNode = createShowStmt(pCxt, QUERY_NODE_SHOW_LICENCES_STMT); }
 cmd ::= SHOW CREATE DATABASE db_name(A).                                          { pCxt->pRootNode = createShowCreateDatabaseStmt(pCxt, &A); }
 cmd ::= SHOW CREATE TABLE full_table_name(A).                                     { pCxt->pRootNode = createShowCreateTableStmt(pCxt, QUERY_NODE_SHOW_CREATE_TABLE_STMT, A); }
 cmd ::= SHOW CREATE STABLE full_table_name(A).                                    { pCxt->pRootNode = createShowCreateTableStmt(pCxt, QUERY_NODE_SHOW_CREATE_STABLE_STMT, A); }
@@ -998,4 +998,6 @@ null_ordering_opt(A) ::= .
 null_ordering_opt(A) ::= NULLS FIRST.                                             { A = NULL_ORDER_FIRST; }
 null_ordering_opt(A) ::= NULLS LAST.                                              { A = NULL_ORDER_LAST; }
 
-%fallback ID NK_BITNOT VALUES IMPORT NK_SEMI FILE.
+%fallback ABORT AFTER ATTACH BEFORE BEGIN BITAND BITNOT BITOR BLOCKS CHANGE COMMA COMPACT CONCAT CONFLICT COPY DEFERRED DELIMITERS DETACH DIVIDE DOT EACH END FAIL 
+  FILE FOR GLOB ID IMMEDIATE IMPORT INITIALLY INSTEAD ISNULL KEY NK_BITNOT NK_SEMI NOTNULL OF PLUS PRIVILEGE RAISE REPLACE RESTRICT ROW SEMI STAR STATEMENT STRING 
+  TIMES UPDATE VALUES VARIABLE VIEW VNODES WAL.

source/libs/parser/src/parAstParser.c

@@ -570,7 +570,7 @@ static int32_t collectMetaKeyFromQuery(SCollectMetaKeyCxt* pCxt, SNode* pStmt) {
       return collectMetaKeyFromShowTags(pCxt, (SShowStmt*)pStmt);
     case QUERY_NODE_SHOW_USERS_STMT:
       return collectMetaKeyFromShowUsers(pCxt, (SShowStmt*)pStmt);
-    case QUERY_NODE_SHOW_LICENCE_STMT:
+    case QUERY_NODE_SHOW_LICENCES_STMT:
       return collectMetaKeyFromShowLicence(pCxt, (SShowStmt*)pStmt);
     case QUERY_NODE_SHOW_VGROUPS_STMT:
       return collectMetaKeyFromShowVgroups(pCxt, (SShowStmt*)pStmt);

source/libs/parser/src/parTokenizer.c

@@ -43,8 +43,8 @@ static SKeyword keywordTable[] = {
     {"AT_ONCE",              TK_AT_ONCE},
     {"BALANCE",              TK_BALANCE},
     {"BETWEEN",              TK_BETWEEN},
-    {"BINARY",               TK_BINARY},
     {"BIGINT",               TK_BIGINT},
+    {"BINARY",               TK_BINARY},
     {"BNODE",                TK_BNODE},
     {"BNODES",               TK_BNODES},
     {"BOOL",                 TK_BOOL},
@@ -60,9 +60,9 @@ static SKeyword keywordTable[] = {
     {"COLUMN",               TK_COLUMN},
     {"COMMENT",              TK_COMMENT},
     {"COMP",                 TK_COMP},
-    {"CONNS",                TK_CONNS},
     {"CONNECTION",           TK_CONNECTION},
     {"CONNECTIONS",          TK_CONNECTIONS},
+    {"CONNS",                TK_CONNS},
     {"CONSUMER",             TK_CONSUMER},
     {"CONSUMERS",            TK_CONSUMERS},
     {"CONTAINS",             TK_CONTAINS},
@@ -106,8 +106,8 @@ static SKeyword keywordTable[] = {
     {"INDEX",                TK_INDEX},
     {"INDEXES",              TK_INDEXES},
     {"INNER",                TK_INNER},
-    {"INT",                  TK_INT},
     {"INSERT",               TK_INSERT},
+    {"INT",                  TK_INT},
     {"INTEGER",              TK_INTEGER},
     {"INTERVAL",             TK_INTERVAL},
     {"INTO",                 TK_INTO},
@@ -118,7 +118,7 @@ static SKeyword keywordTable[] = {
     {"KILL",                 TK_KILL},
     {"LAST",                 TK_LAST},
     {"LAST_ROW",             TK_LAST_ROW},
-    {"LICENCE",              TK_LICENCE},
+    {"LICENCES",             TK_LICENCES},
     {"LIKE",                 TK_LIKE},
     {"LIMIT",                TK_LIMIT},
     {"LINEAR",               TK_LINEAR},
@@ -147,10 +147,10 @@ static SKeyword keywordTable[] = {
     {"OR",                   TK_OR},
     {"ORDER",                TK_ORDER},
     {"OUTPUTTYPE",           TK_OUTPUTTYPE},
-    {"PARTITION",            TK_PARTITION},
-    {"PASS",                 TK_PASS},
     {"PAGES",                TK_PAGES},
     {"PAGESIZE",             TK_PAGESIZE},
+    {"PARTITION",            TK_PARTITION},
+    {"PASS",                 TK_PASS},
     {"PORT",                 TK_PORT},
     {"PPS",                  TK_PPS},
     {"PRECISION",            TK_PRECISION},

source/libs/parser/src/parTranslater.c

@@ -28,6 +28,8 @@
 #define generateDealNodeErrMsg(pCxt, code, ...) \
   (pCxt->errCode = generateSyntaxErrMsg(&pCxt->msgBuf, code, ##__VA_ARGS__), DEAL_RES_ERROR)
 
+#define SYSTABLE_SHOW_TYPE_OFFSET QUERY_NODE_SHOW_DNODES_STMT
+
 typedef struct STranslateContext {
   SParseContext*   pParseCxt;
   int32_t          errCode;
@@ -51,6 +53,201 @@ typedef struct SFullDatabaseName {
   char fullDbName[TSDB_DB_FNAME_LEN];
 } SFullDatabaseName;
 
+typedef struct SSysTableShowAdapter {
+  ENodeType   showType;
+  const char* pDbName;
+  const char* pTableName;
+  int32_t     numOfShowCols;
+  const char* pShowCols[2];
+} SSysTableShowAdapter;
+
+// clang-format off
+static const SSysTableShowAdapter sysTableShowAdapter[] = {
+  {
+    .showType = QUERY_NODE_SHOW_DNODES_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_DNODES,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_MNODES_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_MNODES,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_MODULES_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_MODULES,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_QNODES_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_QNODES,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_SNODES_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_SNODES,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_BNODES_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_BNODES,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_CLUSTER_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_CLUSTER,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_DATABASES_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_DATABASES,
+    .numOfShowCols = 1,
+    .pShowCols = {"name"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_FUNCTIONS_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_FUNCTIONS,
+    .numOfShowCols = 1,
+    .pShowCols = {"name"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_INDEXES_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_INDEXES,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_STABLES_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_STABLES,
+    .numOfShowCols = 1,
+    .pShowCols = {"stable_name"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_STREAMS_STMT,
+    .pDbName = TSDB_PERFORMANCE_SCHEMA_DB,
+    .pTableName = TSDB_PERFS_TABLE_STREAMS,
+    .numOfShowCols = 1,
+    .pShowCols = {"stream_name"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_TABLES_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_TABLES,
+    .numOfShowCols = 1,
+    .pShowCols = {"table_name"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_TAGS_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_TAGS,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_USERS_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_USERS,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_LICENCES_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_LICENCES,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_VGROUPS_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_VGROUPS,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_TOPICS_STMT,
+    .pDbName = TSDB_PERFORMANCE_SCHEMA_DB,
+    .pTableName = TSDB_PERFS_TABLE_TOPICS,
+    .numOfShowCols = 1,
+    .pShowCols = {"topic_name"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_CONSUMERS_STMT,
+    .pDbName = TSDB_PERFORMANCE_SCHEMA_DB,
+    .pTableName = TSDB_PERFS_TABLE_CONSUMERS,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_CONNECTIONS_STMT,
+    .pDbName = TSDB_PERFORMANCE_SCHEMA_DB,
+    .pTableName = TSDB_PERFS_TABLE_CONNECTIONS,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_QUERIES_STMT,
+    .pDbName = TSDB_PERFORMANCE_SCHEMA_DB,
+    .pTableName = TSDB_PERFS_TABLE_QUERIES,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_APPS_STMT,
+    .pDbName = TSDB_PERFORMANCE_SCHEMA_DB,
+    .pTableName = TSDB_PERFS_TABLE_APPS,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_VARIABLES_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_CONFIGS,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_DNODE_VARIABLES_STMT,
+    .pDbName = TSDB_INFORMATION_SCHEMA_DB,
+    .pTableName = TSDB_INS_TABLE_DNODE_VARIABLES,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_TRANSACTIONS_STMT,
+    .pDbName = TSDB_PERFORMANCE_SCHEMA_DB,
+    .pTableName = TSDB_PERFS_TABLE_TRANS,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+  {
+    .showType = QUERY_NODE_SHOW_SUBSCRIPTIONS_STMT,
+    .pDbName = TSDB_PERFORMANCE_SCHEMA_DB,
+    .pTableName = TSDB_PERFS_TABLE_SUBSCRIPTIONS,
+    .numOfShowCols = 1,
+    .pShowCols = {"*"}
+  },
+};
+// clang-format on
+
 static int32_t  translateSubquery(STranslateContext* pCxt, SNode* pNode);
 static int32_t  translateQuery(STranslateContext* pCxt, SNode* pNode);
 static EDealRes translateValue(STranslateContext* pCxt, SValueNode* pVal);
@@ -5362,112 +5559,42 @@ int32_t extractResultSchema(const SNode* pRoot, int32_t* numOfCols, SSchema** pS
   return TSDB_CODE_FAILED;
 }
 
-static const char* getSysDbName(ENodeType type) {
-  switch (type) {
-    case QUERY_NODE_SHOW_DATABASES_STMT:
-    case QUERY_NODE_SHOW_TABLES_STMT:
-    case QUERY_NODE_SHOW_STABLES_STMT:
-    case QUERY_NODE_SHOW_USERS_STMT:
-    case QUERY_NODE_SHOW_DNODES_STMT:
-    case QUERY_NODE_SHOW_VGROUPS_STMT:
-    case QUERY_NODE_SHOW_MNODES_STMT:
-    case QUERY_NODE_SHOW_MODULES_STMT:
-    case QUERY_NODE_SHOW_QNODES_STMT:
-    case QUERY_NODE_SHOW_FUNCTIONS_STMT:
-    case QUERY_NODE_SHOW_INDEXES_STMT:
-    case QUERY_NODE_SHOW_BNODES_STMT:
-    case QUERY_NODE_SHOW_SNODES_STMT:
-    case QUERY_NODE_SHOW_LICENCE_STMT:
-    case QUERY_NODE_SHOW_CLUSTER_STMT:
-    case QUERY_NODE_SHOW_VARIABLES_STMT:
-    case QUERY_NODE_SHOW_DNODE_VARIABLES_STMT:
-    case QUERY_NODE_SHOW_TAGS_STMT:
-      return TSDB_INFORMATION_SCHEMA_DB;
-    case QUERY_NODE_SHOW_CONNECTIONS_STMT:
-    case QUERY_NODE_SHOW_QUERIES_STMT:
-    case QUERY_NODE_SHOW_TOPICS_STMT:
-    case QUERY_NODE_SHOW_STREAMS_STMT:
-    case QUERY_NODE_SHOW_TRANSACTIONS_STMT:
-    case QUERY_NODE_SHOW_APPS_STMT:
-    case QUERY_NODE_SHOW_CONSUMERS_STMT:
-    case QUERY_NODE_SHOW_SUBSCRIPTIONS_STMT:
-      return TSDB_PERFORMANCE_SCHEMA_DB;
-    default:
-      break;
-  }
-  return NULL;
-}
-
-static const char* getSysTableName(ENodeType type) {
-  switch (type) {
-    case QUERY_NODE_SHOW_DATABASES_STMT:
-      return TSDB_INS_TABLE_DATABASES;
-    case QUERY_NODE_SHOW_TABLES_STMT:
-      return TSDB_INS_TABLE_TABLES;
-    case QUERY_NODE_SHOW_TAGS_STMT:
-      return TSDB_INS_TABLE_TAGS;
-    case QUERY_NODE_SHOW_STABLES_STMT:
-      return TSDB_INS_TABLE_STABLES;
-    case QUERY_NODE_SHOW_USERS_STMT:
-      return TSDB_INS_TABLE_USERS;
-    case QUERY_NODE_SHOW_DNODES_STMT:
-      return TSDB_INS_TABLE_DNODES;
-    case QUERY_NODE_SHOW_VGROUPS_STMT:
-      return TSDB_INS_TABLE_VGROUPS;
-    case QUERY_NODE_SHOW_MNODES_STMT:
-      return TSDB_INS_TABLE_MNODES;
-    case QUERY_NODE_SHOW_MODULES_STMT:
-      return TSDB_INS_TABLE_MODULES;
-    case QUERY_NODE_SHOW_QNODES_STMT:
-      return TSDB_INS_TABLE_QNODES;
-    case QUERY_NODE_SHOW_FUNCTIONS_STMT:
-      return TSDB_INS_TABLE_FUNCTIONS;
-    case QUERY_NODE_SHOW_INDEXES_STMT:
-      return TSDB_INS_TABLE_INDEXES;
-    case QUERY_NODE_SHOW_STREAMS_STMT:
-      return TSDB_PERFS_TABLE_STREAMS;
-    case QUERY_NODE_SHOW_BNODES_STMT:
-      return TSDB_INS_TABLE_BNODES;
-    case QUERY_NODE_SHOW_SNODES_STMT:
-      return TSDB_INS_TABLE_SNODES;
-    case QUERY_NODE_SHOW_LICENCE_STMT:
-      return TSDB_INS_TABLE_LICENCES;
-    case QUERY_NODE_SHOW_CLUSTER_STMT:
-      return TSDB_INS_TABLE_CLUSTER;
-    case QUERY_NODE_SHOW_CONNECTIONS_STMT:
-      return TSDB_PERFS_TABLE_CONNECTIONS;
-    case QUERY_NODE_SHOW_QUERIES_STMT:
-      return TSDB_PERFS_TABLE_QUERIES;
-    case QUERY_NODE_SHOW_TOPICS_STMT:
-      return TSDB_PERFS_TABLE_TOPICS;
-    case QUERY_NODE_SHOW_TRANSACTIONS_STMT:
-      return TSDB_PERFS_TABLE_TRANS;
-    case QUERY_NODE_SHOW_VARIABLES_STMT:
-      return TSDB_INS_TABLE_CONFIGS;
-    case QUERY_NODE_SHOW_APPS_STMT:
-      return TSDB_PERFS_TABLE_APPS;
-    case QUERY_NODE_SHOW_DNODE_VARIABLES_STMT:
-      return TSDB_INS_TABLE_DNODE_VARIABLES;
-    case QUERY_NODE_SHOW_CONSUMERS_STMT:
-      return TSDB_PERFS_TABLE_CONSUMERS;
-    case QUERY_NODE_SHOW_SUBSCRIPTIONS_STMT:
-      return TSDB_PERFS_TABLE_SUBSCRIPTIONS;
-    default:
-      break;
+static SNode* createStarCol() {
+  SColumnNode* pCol = (SColumnNode*)nodesMakeNode(QUERY_NODE_COLUMN);
+  if (NULL == pCol) {
+    return NULL;
   }
-  return NULL;
+  strcpy(pCol->colName, "*");
+  return (SNode*)pCol;
 }
 
-static SNode* createStarCol() {
+static SNode* createProjectCol(const char* pProjCol) {
   SColumnNode* pCol = (SColumnNode*)nodesMakeNode(QUERY_NODE_COLUMN);
   if (NULL == pCol) {
     return NULL;
   }
-  strcpy(pCol->colName, "*");
+  strcpy(pCol->colName, pProjCol);
   return (SNode*)pCol;
 }
 
-static int32_t createSimpleSelectStmt(const char* pDb, const char* pTable, SSelectStmt** pStmt) {
+static SNodeList* createProjectCols(int32_t ncols, const char* const pCols[]) {
+  SNodeList* pProjections = NULL;
+  if (ncols <= 0) {
+    nodesListMakeStrictAppend(&pProjections, createStarCol());
+    return pProjections;
+  }
+  for (int32_t i = 0; i < ncols; ++i) {
+    int32_t code = nodesListMakeStrictAppend(&pProjections, createProjectCol(pCols[i]));
+    if (TSDB_CODE_SUCCESS != code) {
+      nodesDestroyList(pProjections);
+      return NULL;
+    }
+  }
+  return pProjections;
+}
+
+static int32_t createSimpleSelectStmt(const char* pDb, const char* pTable, int32_t numOfProjs,
+                                      const char* const pProjCol[], SSelectStmt** pStmt) {
   SSelectStmt* pSelect = (SSelectStmt*)nodesMakeNode(QUERY_NODE_SELECT_STMT);
   if (NULL == pSelect) {
     return TSDB_CODE_OUT_OF_MEMORY;
@@ -5484,7 +5611,8 @@ static int32_t createSimpleSelectStmt(const char* pDb, const char* pTable, SSele
   strcpy(pRealTable->table.tableAlias, pTable);
   pSelect->pFromTable = (SNode*)pRealTable;
 
-  if (TSDB_CODE_SUCCESS != nodesListMakeStrictAppend(&pSelect->pProjectionList, createStarCol())) {
+  pSelect->pProjectionList = createProjectCols(numOfProjs, pProjCol);
+  if (NULL == pSelect->pProjectionList) {
     nodesDestroyNode((SNode*)pSelect);
     return TSDB_CODE_OUT_OF_MEMORY;
   }
@@ -5495,11 +5623,12 @@ static int32_t createSimpleSelectStmt(const char* pDb, const char* pTable, SSele
 }
 
 static int32_t createSelectStmtForShow(ENodeType showType, SSelectStmt** pStmt) {
-  return createSimpleSelectStmt(getSysDbName(showType), getSysTableName(showType), pStmt);
+  const SSysTableShowAdapter* pShow = &sysTableShowAdapter[showType - SYSTABLE_SHOW_TYPE_OFFSET];
+  return createSimpleSelectStmt(pShow->pDbName, pShow->pTableName, pShow->numOfShowCols, pShow->pShowCols, pStmt);
 }
 
 static int32_t createSelectStmtForShowTableDist(SShowTableDistributedStmt* pStmt, SSelectStmt** pOutput) {
-  return createSimpleSelectStmt(pStmt->dbName, pStmt->tableName, pOutput);
+  return createSimpleSelectStmt(pStmt->dbName, pStmt->tableName, 0, NULL, pOutput);
 }
 
 static int32_t createOperatorNode(EOperatorType opType, const char* pColName, SNode* pRight, SNode** pOp) {
@@ -6687,7 +6816,7 @@ static int32_t rewriteFlushDatabase(STranslateContext* pCxt, SQuery* pQuery) {
 static int32_t rewriteQuery(STranslateContext* pCxt, SQuery* pQuery) {
   int32_t code = TSDB_CODE_SUCCESS;
   switch (nodeType(pQuery->pRoot)) {
-    case QUERY_NODE_SHOW_LICENCE_STMT:
+    case QUERY_NODE_SHOW_LICENCES_STMT:
     case QUERY_NODE_SHOW_DATABASES_STMT:
     case QUERY_NODE_SHOW_TABLES_STMT:
     case QUERY_NODE_SHOW_STABLES_STMT:

source/libs/parser/test/mockCatalog.cpp

@@ -35,25 +35,25 @@ void generateInformationSchema(MockCatalogService* mcs) {
   {
     ITableBuilder& builder =
         mcs->createTableBuilder(TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_DNODES, TSDB_SYSTEM_TABLE, 1)
-            .addColumn("id", TSDB_DATA_TYPE_INT);
+            .addColumn("endpoint", TSDB_DATA_TYPE_BINARY, TSDB_EP_LEN);
     builder.done();
   }
   {
     ITableBuilder& builder =
         mcs->createTableBuilder(TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_MNODES, TSDB_SYSTEM_TABLE, 1)
-            .addColumn("id", TSDB_DATA_TYPE_INT);
+            .addColumn("endpoint", TSDB_DATA_TYPE_BINARY, TSDB_EP_LEN);
     builder.done();
   }
   {
     ITableBuilder& builder =
         mcs->createTableBuilder(TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_MODULES, TSDB_SYSTEM_TABLE, 1)
-            .addColumn("id", TSDB_DATA_TYPE_INT);
+            .addColumn("endpoint", TSDB_DATA_TYPE_BINARY, TSDB_EP_LEN);
     builder.done();
   }
   {
     ITableBuilder& builder =
         mcs->createTableBuilder(TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_QNODES, TSDB_SYSTEM_TABLE, 1)
-            .addColumn("id", TSDB_DATA_TYPE_INT);
+            .addColumn("endpoint", TSDB_DATA_TYPE_BINARY, TSDB_EP_LEN);
     builder.done();
   }
   {
@@ -70,7 +70,8 @@ void generateInformationSchema(MockCatalogService* mcs) {
   }
   {
     ITableBuilder& builder =
-        mcs->createTableBuilder(TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_INDEXES, TSDB_SYSTEM_TABLE, 2)
+        mcs->createTableBuilder(TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_INDEXES, TSDB_SYSTEM_TABLE, 3)
+            .addColumn("index_name", TSDB_DATA_TYPE_BINARY, TSDB_TABLE_NAME_LEN)
             .addColumn("db_name", TSDB_DATA_TYPE_BINARY, TSDB_DB_NAME_LEN)
             .addColumn("table_name", TSDB_DATA_TYPE_BINARY, TSDB_TABLE_NAME_LEN);
     builder.done();
@@ -98,7 +99,7 @@ void generateInformationSchema(MockCatalogService* mcs) {
   {
     ITableBuilder& builder =
         mcs->createTableBuilder(TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_USERS, TSDB_SYSTEM_TABLE, 1)
-            .addColumn("user_name", TSDB_DATA_TYPE_BINARY, TSDB_USER_LEN);
+            .addColumn("name", TSDB_DATA_TYPE_BINARY, TSDB_USER_LEN);
     builder.done();
   }
   {
@@ -122,7 +123,7 @@ void generateInformationSchema(MockCatalogService* mcs) {
   {
     ITableBuilder& builder =
         mcs->createTableBuilder(TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_CLUSTER, TSDB_SYSTEM_TABLE, 1)
-            .addColumn("id", TSDB_DATA_TYPE_BIGINT);
+            .addColumn("name", TSDB_DATA_TYPE_BINARY, TSDB_CLUSTER_ID_LEN);
     builder.done();
   }
 }

tests/develop-test/5-taos-tools/taosbenchmark/auto_create_table_json.py

@@ -111,7 +111,7 @@ class TDTestCase:
         tdSql.checkData(0, 0, 8)
         tdSql.query("select count(*) from db.stb2")
         tdSql.checkData(0, 0, 160)
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkData(2, 14, "us")
 
         tdSql.execute("reset query cache")
@@ -128,7 +128,7 @@ class TDTestCase:
         tdSql.checkData(0, 0, 8)
         tdSql.query("select count(*) from db.stb3")
         tdSql.checkData(0, 0, 160)
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkData(2, 14, "ns")
 
         tdSql.execute("reset query cache")

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeBigInt.py

@@ -97,7 +97,7 @@ class TDTestCase:
 
         os.system("%staosdump -i %s -T 1" % (binPath, self.tmpdir))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
 
         tdSql.execute("use db")

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeBinary.py

@@ -85,7 +85,7 @@ class TDTestCase:
 
         os.system("%staosdump -i %s" % (binPath, self.tmpdir))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
 
         tdSql.execute("use db")

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeBool.py

@@ -86,7 +86,7 @@ class TDTestCase:
 
         os.system("%staosdump -i %s" % (binPath, self.tmpdir))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
 
         tdSql.execute("use db")

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeDouble.py

@@ -96,7 +96,7 @@ class TDTestCase:
 
         os.system("%staosdump -i %s -T 1" % (binPath, self.tmpdir))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
 
         tdSql.execute("use db")

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeFloat.py

@@ -96,7 +96,7 @@ class TDTestCase:
 
         os.system("%staosdump -i %s -T 1" % (binPath, self.tmpdir))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
 
         tdSql.execute("use db")

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeInt.py

@@ -92,7 +92,7 @@ class TDTestCase:
 
         os.system("%staosdump -i %s -T 1" % (binPath, self.tmpdir))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
 
         tdSql.execute("use db")

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeJson.py

@@ -92,7 +92,7 @@ class TDTestCase:
 
         os.system("%staosdump -i %s -g" % (binPath, self.tmpdir))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
 
         tdSql.execute("use db")

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeSmallInt.py

@@ -94,7 +94,7 @@ class TDTestCase:
 
         os.system("%staosdump -i %s -T 1" % (binPath, self.tmpdir))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
 
         tdSql.execute("use db")

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeTinyInt.py

@@ -94,7 +94,7 @@ class TDTestCase:
 
         os.system("%staosdump -i %s -T 1" % (binPath, self.tmpdir))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
 
         tdSql.execute("use db")

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeUnsignedBigInt.py

@@ -90,7 +90,7 @@ class TDTestCase:
 
         os.system("%staosdump -i %s -T 1 -g" % (binPath, self.tmpdir))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
 
         tdSql.execute("use db")

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeUnsignedInt.py

@@ -90,7 +90,7 @@ class TDTestCase:
 
         os.system("%staosdump -i %s -T 1 -g" % (binPath, self.tmpdir))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
 
         tdSql.execute("use db")

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeUnsignedSmallInt.py

@@ -90,7 +90,7 @@ class TDTestCase:
 
         os.system("%staosdump -i %s -T 1 -g" % (binPath, self.tmpdir))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
 
         tdSql.execute("use db")

tests/develop-test/5-taos-tools/taosdump/taosdumpTestTypeUnsignedTinyInt.py

@@ -90,7 +90,7 @@ class TDTestCase:
 
         os.system("%staosdump -i %s -T 1 -g" % (binPath, self.tmpdir))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
 
         tdSql.execute("use db")

tests/pytest/account/account_create.py

@@ -24,11 +24,11 @@ class TDTestCase:
         tdSql.init(conn.cursor(), logSql)
 
     def run(self):
-        tdSql.query("show users")
+        tdSql.query("select * from information_schema.ins_users")
         rows = tdSql.queryRows
 
         tdSql.execute("create user test PASS 'test' ")
-        tdSql.query("show users")
+        tdSql.query("select * from information_schema.ins_users")
         tdSql.checkRows(rows + 1)
 
         tdSql.error("create user tdenginetdenginetdengine PASS 'test' ")

tests/pytest/alter/alter_cacheLastRow.py

@@ -41,7 +41,7 @@ class TDTestCase:
 
     def run(self):
         tdSql.prepare()
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,15,0)
         buildPath = self.getBuildPath()
         if (buildPath == ""):
@@ -68,7 +68,7 @@ class TDTestCase:
         for i in range(5): 
             #switch lastRow to off and check
             tdSql.execute('alter database db cachemodel 'none'') 
-            tdSql.query('show databases')
+            tdSql.query('select * from information_schema.ins_databases')
             tdSql.checkData(0,15,0)
 
             #run last_row(*) query 500 times       
@@ -80,7 +80,7 @@ class TDTestCase:
 
             #switch lastRow to on and check
             tdSql.execute('alter database db cachemodel 'last_row'')
-            tdSql.query('show databases')
+            tdSql.query('select * from information_schema.ins_databases')
             tdSql.checkData(0,15,1)
         
             #run last_row(*) query 500 times 

tests/pytest/alter/alter_create_exception.py

@@ -49,7 +49,7 @@ class TDTestCase:
         tdSql.error('create database db keep "3650"')
         tdSql.error('create database db wal_fsync_period "3650"')
         tdSql.execute('create database db precision "us"')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,16,'us')
         tdSql.execute('drop database if exists db')
 
@@ -79,7 +79,7 @@ class TDTestCase:
         tdSql.error('alter database db keep ,,60,')
         tdSql.error('alter database db keep \t')
         tdSql.execute('alter database db keep \t50')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'50,50,50')
 
     def stop(self):

tests/pytest/alter/alter_debugFlag.py

@@ -37,7 +37,7 @@ class TDTestCase:
             if randomFlag != 131 and randomFlag != 135 and randomFlag != 143:
                 tdSql.error("alter local %s %d" % (flag, randomFlag))
         
-        tdSql.query("show dnodes")
+        tdSql.query("select * from information_schema.ins_dnodes")
         dnodeId = tdSql.getData(0, 0)
 
         for flag in flagList:

tests/pytest/alter/alter_keep.py

@@ -27,12 +27,12 @@ class TDTestCase:
         tdLog.notice('running Keep Test, Community Version')
         tdLog.notice('running parameter test for keep during create')
         #testing keep parameter during create
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'3650')
         tdSql.execute('drop database db')
 
         tdSql.execute('create database db keep 100')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'100')
         tdSql.execute('drop database db')
 
@@ -47,7 +47,7 @@ class TDTestCase:
         tdLog.notice('running parameter test for keep during alter')
 
         tdSql.execute('alter database db keep 100')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'100')
 
         tdSql.error('alter database db keep ')
@@ -55,7 +55,7 @@ class TDTestCase:
         tdSql.error('alter database db keep 10,20')
         tdSql.error('alter database db keep 10,20,30')
         tdSql.error('alter database db keep 20,30,40,50')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'100')
 
     def alterKeepEnterprise(self):
@@ -63,22 +63,22 @@ class TDTestCase:
         #testing keep parameter during create
         tdLog.notice('running parameter test for keep during create')
 
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'3650,3650,3650')
         tdSql.execute('drop database db')
 
         tdSql.execute('create database db keep 100')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'100,100,100')
         tdSql.execute('drop database db')
 
         tdSql.execute('create database db keep 20, 30')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'20,30,30')
         tdSql.execute('drop database db')
 
         tdSql.execute('create database db keep 30,40,50')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'30,40,50')
         tdSql.execute('drop database db')
 
@@ -95,15 +95,15 @@ class TDTestCase:
         tdLog.notice('running parameter test for keep during alter')
 
         tdSql.execute('alter database db keep 10')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'10,10,10')
 
         tdSql.execute('alter database db keep 20,30')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'20,30,30')
 
         tdSql.execute('alter database db keep 100,200,300')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'100,200,300')
 
         tdSql.error('alter database db keep ')
@@ -113,7 +113,7 @@ class TDTestCase:
         tdSql.error('alter database db keep 100,40,50')
         tdSql.error('alter database db keep 20,100,50')
         tdSql.error('alter database db keep 50,60,20')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'100,200,300')
 
 
@@ -148,7 +148,7 @@ class TDTestCase:
         #test case for TD-4459 and TD-4445
         tdLog.notice('testing keep will be altered changing from small to big')
         tdSql.execute('alter database db keep 40,40,40')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'40,40,40')
         tdSql.error('insert into tb values (now-60d, 10)')
         tdSql.execute('insert into tb values (now-30d, 10)')
@@ -160,7 +160,7 @@ class TDTestCase:
             rowNum += 1
             tdSql.execute('alter database db keep 20,20,20')
             tdSql.execute('alter database db keep 40,40,40')
-            tdSql.query('show databases')
+            tdSql.query('select * from information_schema.ins_databases')
             tdSql.checkData(0,7,'40,40,40')
             tdSql.error('insert into tb values (now-60d, 10)')
             tdSql.execute('insert into tb values (now-30d, 10)')
@@ -169,7 +169,7 @@ class TDTestCase:
 
         tdLog.notice('testing keep will be altered changing from big to small')
         tdSql.execute('alter database db keep 10,10,10')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,7,'10,10,10')
         tdSql.error('insert into tb values (now-15d, 10)')
         tdSql.query('select * from tb')

tests/pytest/alter/db_update_options.py

@@ -21,7 +21,7 @@ class TDTestCase:
         # check default update value 
         sql = "create database if not exists db"
         tdSql.execute(sql)
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkRows(1)
         tdSql.checkData(0,16,0)
 
@@ -29,14 +29,14 @@ class TDTestCase:
 
         # check update value 
         tdSql.execute(sql)
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkRows(1)
         tdSql.checkData(0,16,1)
 
 
         sql = "alter database db update 0"
         tdSql.execute(sql)
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkRows(1)
         tdSql.checkData(0,16,0)
 
@@ -46,7 +46,7 @@ class TDTestCase:
         sql = "alter database db update 100"
         tdSql.error(sql)
 
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkRows(1)
         tdSql.checkData(0,16,0)
 
@@ -56,7 +56,7 @@ class TDTestCase:
 
         tdSql.execute('create database db update 1')
 
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkRows(1)
         tdSql.checkData(0,16,1)
 

tests/pytest/client/alterDatabase.py

@@ -29,18 +29,18 @@ class TDTestCase:
         tdSql.checkData(0, 0, "db")        
         
         tdSql.execute("alter database db comp 2")
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkData(0, 14, 2)
 
         tdSql.execute("alter database db keep 365,365,365")
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkData(0, 7, "365,365,365")
         
         tdSql.error("alter database db quorum 2")
         
 
         tdSql.execute("alter database db blocks 100")
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkData(0, 9, 100)
 
 

tests/pytest/client/client.py

@@ -37,7 +37,7 @@ class TDTestCase:
 
         time.sleep(1)
 
-        ret = tdSql.query('show dnodes')
+        ret = tdSql.query('select * from information_schema.ins_dnodes')
 
         dnodeId = tdSql.getData(0, 0);
         dnodeEndpoint = tdSql.getData(0, 1);
@@ -47,7 +47,7 @@ class TDTestCase:
 
         time.sleep(1)
 
-        ret = tdSql.query('show mnodes')
+        ret = tdSql.query('select * from information_schema.ins_mnodes')
         tdSql.checkRows(1)
         tdSql.checkData(0, 2, "master")
 

tests/pytest/cluster/killAndRestartDnodesTest.py

@@ -30,7 +30,7 @@ class ClusterTestcase:
         tdSql.init(ctest.conn.cursor(), False)
 
         nodes.node1.stopTaosd()
-        tdSql.query("show dnodes")
+        tdSql.query("select * from information_schema.ins_dnodes")
         tdSql.checkRows(3)
         tdSql.checkData(0, 4, "offline")
         tdSql.checkData(1, 4, "ready")    
@@ -43,7 +43,7 @@ class ClusterTestcase:
         tdSql.checkData(2, 4, "ready")
 
         nodes.node2.stopTaosd()
-        tdSql.query("show dnodes")
+        tdSql.query("select * from information_schema.ins_dnodes")
         tdSql.checkRows(3)
         tdSql.checkData(0, 4, "ready")
         tdSql.checkData(1, 4, "offline")    
@@ -56,7 +56,7 @@ class ClusterTestcase:
         tdSql.checkData(2, 4, "ready")
 
         nodes.node3.stopTaosd()
-        tdSql.query("show dnodes")
+        tdSql.query("select * from information_schema.ins_dnodes")
         tdSql.checkRows(3)
         tdSql.checkData(0, 4, "ready")
         tdSql.checkData(1, 4, "ready")    

tests/pytest/cluster/offlineThresholdTest.py

@@ -33,7 +33,7 @@ class ClusterTestcase:
         nodes.node3.stopTaosd()
 
         tdLog.sleep(10)
-        tdSql.query("show dnodes")
+        tdSql.query("select * from information_schema.ins_dnodes")
         tdSql.checkRows(3)
         tdSql.checkData(2, 4, "offline")
 

tests/pytest/cluster/oneReplicaOfflineTest.py

@@ -55,7 +55,7 @@ class ClusterTestcase:
         tdSql.execute("drop database %s" % ctest.dbName)
         
         nodes.node2.startTaosd()
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(0)
         
         tdSql.close()

tests/pytest/cluster/stopAllDnodesTest.py

@@ -26,19 +26,19 @@ class ClusterTestcase:
         ctest = ClusterTest(nodes.node1.hostName)
         tdSql.init(ctest.conn.cursor(), False)
                 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         count = tdSql.queryRows;
 
         nodes.stopAllTaosd()
         nodes.node1.startTaosd()
-        tdSql.error("show databases")
+        tdSql.error("select * from information_schema.ins_databases")
 
         nodes.node2.startTaosd()
-        tdSql.error("show databases")
+        tdSql.error("select * from information_schema.ins_databases")
 
         nodes.node3.startTaosd()
         tdLog.sleep(10)
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(count)
 
 ct = ClusterTestcase()

tests/pytest/cluster/stopTwoDnodesTest.py

@@ -29,19 +29,19 @@ class ClusterTestcase:
         ctest.run()
         tdSql.init(ctest.conn.cursor(), False)
         
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         count = tdSql.queryRows;
         tdSql.execute("use %s" % ctest.dbName)
         tdSql.execute("alter database %s replica 3" % ctest.dbName)    
         nodes.node2.stopTaosd()
         nodes.node3.stopTaosd()
-        tdSql.error("show databases")
+        tdSql.error("select * from information_schema.ins_databases")
         
         nodes.node2.startTaosd()
-        tdSql.error("show databases")
+        tdSql.error("select * from information_schema.ins_databases")
 
         nodes.node3.startTaosd()
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(count)
         
 ct = ClusterTestcase()

tests/pytest/crash_gen/crash_gen_main.py

@@ -996,7 +996,7 @@ class StateMechine:
             return  # do nothing
 
         # this should show up in the server log, separating steps
-        dbc.execute("show dnodes")
+        dbc.execute("select * from information_schema.ins_dnodes")
 
         # Generic Checks, first based on the start state
         if not Config.getConfig().ignore_errors: # verify state, only if we are asked not to ignore certain errors.
@@ -2042,7 +2042,7 @@ class TaskRestartService(StateTransitionTask):
 
         if Dice.throw(self.CHANCE_TO_RESTART_SERVICE) == 0: # 1 in N chance
             dbc = wt.getDbConn()
-            dbc.execute("show databases") # simple delay, align timing with other workers
+            dbc.execute("select * from information_schema.ins_databases") # simple delay, align timing with other workers
             gSvcMgr.restart()
 
         self._isRunning = False
@@ -2335,7 +2335,7 @@ class ClientManager:
     # def _printLastNumbers(self):  # to verify data durability
     #     dbManager = DbManager()
     #     dbc = dbManager.getDbConn()
-    #     if dbc.query("show databases") <= 1:  # no database (we have a default called "log")
+    #     if dbc.query("select * from information_schema.ins_databases") <= 1:  # no database (we have a default called "log")
     #         return
     #     dbc.execute("use db")
     #     if dbc.query("show tables") == 0:  # no tables

tests/pytest/crash_gen/service_manager.py

@@ -185,7 +185,7 @@ quorum 2
             return ["exec " + self.getExecFile(), '-c', self.getCfgDir()] # used in subproce.Popen()
     
     def _getDnodes(self, dbc):
-        dbc.query("show dnodes")
+        dbc.query("select * from information_schema.ins_dnodes")
         cols = dbc.getQueryResult() #  id,end_point,vnodes,cores,status,role,create_time,offline reason
         return {c[1]:c[4] for c in cols} # {'xxx:6030':'ready', 'xxx:6130':'ready'}
 
@@ -768,7 +768,7 @@ class ServiceManagerThread:
     def _verifyDnode(self, tInst: TdeInstance):
         dbc = DbConn.createNative(tInst.getDbTarget())
         dbc.open()
-        dbc.query("show dnodes")
+        dbc.query("select * from information_schema.ins_dnodes")
         # dbc.query("DESCRIBE {}.{}".format(dbName, self._stName))
         cols = dbc.getQueryResult() #  id,end_point,vnodes,cores,status,role,create_time,offline reason
         # ret = {row[0]:row[1] for row in stCols if row[3]=='TAG'} # name:type

tests/pytest/crash_gen/shared/db.py

@@ -114,7 +114,7 @@ class DbConn:
 
     def existsDatabase(self, dbName: str):
         ''' Check if a certain database exists '''
-        self.query("show databases")
+        self.query("select * from information_schema.ins_databases")
         dbs = [v[0] for v in self.getQueryResult()] # ref: https://stackoverflow.com/questions/643823/python-list-transformation
         # ret2 = dbName in dbs
         # print("dbs = {}, str = {}, ret2={}, type2={}".format(dbs, dbName,ret2, type(dbName)))
@@ -157,7 +157,7 @@ class DbConn:
     def getResultCols(self):
         raise RuntimeError("Unexpected execution, should be overriden")
 
-# Sample: curl -u root:taosdata -d "show databases" localhost:6020/rest/sql
+# Sample: curl -u root:taosdata -d "select * from information_schema.ins_databases" localhost:6020/rest/sql
 
 
 class DbConnRest(DbConn):

tests/pytest/dbmgmt/database-name-boundary.py

@@ -47,7 +47,7 @@ class TDTestCase:
         tdLog.info('create database %s' % db_name)
         tdSql.execute('create database %s' % db_name)
 
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkRows(1)
         tdSql.checkData(0, 0, db_name.lower())
 
@@ -57,7 +57,7 @@ class TDTestCase:
         tdLog.info('create database %s' % db_name)
         tdSql.execute('create database %s' % db_name)
 
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkRows(2)
         tdSql.checkData(0, 0, db_name.lower())
 

tests/pytest/dbmgmt/nanoSecondCheck.py

@@ -32,7 +32,7 @@ class TDTestCase:
         tdSql.execute('reset query cache')
         tdSql.execute('drop database if exists db')
         tdSql.execute('create database db precision "ns";')
-        tdSql.query('show databases;')
+        tdSql.query('select * from information_schema.ins_databases;')
         tdSql.checkData(0,16,'ns')
         tdSql.execute('use db')
 

tests/pytest/functions/queryTestCases.py

@@ -68,7 +68,7 @@ class TDTestCase:
         tdSql.query("show variables")
         tdSql.checkData(26, 1, -1)
 
-        tdSql.query("show dnodes")
+        tdSql.query("select * from information_schema.ins_dnodes")
         index = tdSql.getData(0, 0)
 
         tdDnodes.stop(index)
@@ -269,7 +269,7 @@ class TDTestCase:
         tdSql.execute("create database  if not exists db")
         tdSql.query("show variables")
         tdSql.checkData(38, 1, 3650)
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkData(0,7,"3650,3650,3650")
 
         days = tdSql.getData(0, 6)
@@ -288,12 +288,12 @@ class TDTestCase:
         tdSql.error("alter database db keep0 36500")
 
         tdSql.execute("alter database db keep 36500")
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkData(0, 7, "3650,3650,36500")
         tdSql.execute("drop database if exists db")
 
         tdSql.execute("create database  if not exists db1")
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkData(0, 7, "3650,3650,3650")
         tdSql.query("show variables")
         tdSql.checkData(38, 1, 3650)
@@ -311,7 +311,7 @@ class TDTestCase:
         maxTablesPerVnode = 10
         maxVgroupsPerDb = 100
 
-        tdSql.query("show dnodes")
+        tdSql.query("select * from information_schema.ins_dnodes")
         index = tdSql.getData(0, 0)
 
         tdDnodes.stop(index)
@@ -334,7 +334,7 @@ class TDTestCase:
         for i in  range(100):
             tdSql.execute(f"create table db.t1{i} using db.stb1 tags({i})")
             insert_sql += f" t1{i} values({1604298064000 + i*1000}, {i})"
-        tdSql.query("show dnodes")
+        tdSql.query("select * from information_schema.ins_dnodes")
         vnode_count = tdSql.getData(0, 2)
         if vnode_count <= 1:
             tdLog.exit("vnode is less than 2")
@@ -443,7 +443,7 @@ class TDTestCase:
         # f50, f51, f52, f53 = tdSql.getData(0,1), tdSql.getData(0,2), tdSql.getData(0,3), tdSql.getData(0,4)
 
         # 关闭服务并获取未开启压缩情况下的数据容量
-        tdSql.query("show dnodes")
+        tdSql.query("select * from information_schema.ins_dnodes")
         index = tdSql.getData(0, 0)
         tdDnodes.stop(index)
 

tests/pytest/insert/date.py

@@ -174,9 +174,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/insert/insert_locking.py

@@ -33,7 +33,7 @@ class TDTestCase:
         tdLog.info("\n\n----------step1 : drop db and create db----------\n")
         tdSql.execute('''drop database if exists db ;''')
         tdSql.execute('''create database db ;''')
-        sql = '''show databases;'''
+        sql = '''select * from information_schema.ins_databases;'''
         tdSql.query(sql)
         tdSql.checkRows(1)
 
@@ -41,7 +41,7 @@ class TDTestCase:
         tdSql.execute('''create stable 
                     db.stable_1 (ts timestamp, payload binary(256)) 
                     tags(t1 binary(16),t2 int);''')
-        sql = '''show db.stables;'''
+        sql = '''select * from information_schema.ins_stables where db_name = 'db';'''
         tdSql.query(sql)
         tdSql.checkRows(1)
 

tests/pytest/manualTest/TD-5114/continueCreateDn.py

@@ -46,7 +46,7 @@ class TwoClients:
         for i in range(10):
             os.system("taosdemo -f manualTest/TD-5114/insertDataDb3Replica2.json -y ")
         # # check data correct 
-        tdSql.execute("show databases")
+        tdSql.execute("select * from information_schema.ins_databases")
         tdSql.execute("use db3")
         tdSql.query("select count (tbname) from stb0")
         tdSql.checkData(0, 0, 20000)
@@ -78,7 +78,7 @@ class TwoClients:
         #                     % (j, self.ts + i*1000, i + 1, i + 1, i + 1, i + 1, i + 1, i + 0.1, i + 0.1, i % 2, i + 1, i + 1, i + 1, i + 1, i + 1, i + 1))
 
         # # check data correct 
-        # tdSql.execute("show databases")
+        # tdSql.execute("select * from information_schema.ins_databases")
         # tdSql.execute("use db3")
         # tdSql.query("select count (tbname) from test")
         # tdSql.checkData(0, 0, 200) 

tests/pytest/manualTest/manual_alter_block.py

@@ -51,7 +51,7 @@ class TDTestCase:
 
         #alter cache block to 3, then check alter
         tdSql.execute('alter database db blocks 3')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,9,3)
 
         #run taosdemo to occupy all cache, need to manually check memory consumption
@@ -60,7 +60,7 @@ class TDTestCase:
 
         #alter cache block to 8, then check alter
         tdSql.execute('alter database db blocks 8')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,9,8)
 
         #run taosdemo to occupy all cache, need to manually check memory consumption

tests/pytest/manualTest/manual_alter_comp.py

@@ -71,7 +71,7 @@ class TDTestCase:
 
         #comp is at 14
         #check disk usage when comp=2
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.execute('alter database db blocks 3') # minimize the data in cache
         tdSql.checkData(0,14,2)
         os.system("%staosdemo -f tools/taosdemoAllTest/manual_block1_comp.json" % binPath)
@@ -86,10 +86,10 @@ class TDTestCase:
 
         #check disk usage when comp=0
         tdSql.prepare()
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,14,2)
         tdSql.execute('alter database db comp 0')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,14,0)
         os.system("%staosdemo -f tools/taosdemoAllTest/manual_block1_comp.json" % binPath)
         print("default location is at /home/bryan/Documents/Github/TDengine/sim/dnode1/data")
@@ -103,10 +103,10 @@ class TDTestCase:
 
         #check disk usage when comp=1
         tdSql.prepare()
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,14,2)
         tdSql.execute('alter database db comp 1')
-        tdSql.query('show databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdSql.checkData(0,14,1)
         os.system("%staosdemo -f tools/taosdemoAllTest/manual_block1_comp.json" % binPath)
         print("default location is at /home/bryan/Documents/Github/TDengine/sim/dnode1/data")

tests/pytest/perfbenchmark/bug3433.py

@@ -224,7 +224,7 @@ class TDTestCase:
         self.inserttable(file_create_table)
 
         tdLog.printNoPrefix("==========step2:check database and stable records")
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkData(0, 2, 2000)
         tdSql.execute("use db")
         tdSql.query("show stables")

tests/pytest/query/query1970YearsAf.py

@@ -235,7 +235,7 @@ class TDTestCase:
         self.sqlsquery()
 
         # after wal and sync, check again
-        tdSql.query("show dnodes")
+        tdSql.query("select * from information_schema.ins_dnodes")
         index = tdSql.getData(0, 0)
         tdDnodes.stop(index)
         tdDnodes.start(index)

tests/pytest/query/queryJoin10tables.py

@@ -184,7 +184,7 @@ class TDTestCase:
         self.queryjointable()
 
         # after wal and sync, check again
-        tdSql.query("show dnodes")
+        tdSql.query("select * from information_schema.ins_dnodes")
         index = tdSql.getData(0, 0)
         tdDnodes.stop(index)
         tdDnodes.start(index)

tests/pytest/query/queryStddevWithGroupby.py

@@ -54,7 +54,7 @@ class TDTestCase:
         self.querysqls()
 
         tdLog.printNoPrefix("==========step3:after wal,check again")
-        tdSql.query("show dnodes")
+        tdSql.query("select * from information_schema.ins_dnodes")
         index = tdSql.getData(0, 0)
         tdDnodes.stop(index)
         tdDnodes.start(index)

tests/pytest/query/queryTscomputWithNow.py

@@ -155,7 +155,7 @@ class TDTestCase:
         self.inertnow()
         self.querynow()
 
-        tdSql.query("show dnodes")
+        tdSql.query("select * from information_schema.ins_dnodes")
         index = tdSql.getData(0, 0)
         tdDnodes.stop(index)
         tdDnodes.start(index)

tests/pytest/query/removeDBAndSTable.py

@@ -50,14 +50,14 @@ class TDTestCase:
         tdSql.checkData(0, 0, "st_vplu")
 
         tdSql.execute("drop database db")
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
         tdSql.checkData(0, 0, "db_vplu")
 
         tdDnodes.stopAll()
         tdDnodes.start(1)
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(1)
         tdSql.checkData(0, 0, "db_vplu")
 

tests/pytest/restful/restful_bind_db1.py

@@ -75,10 +75,10 @@ class TDTestCase():
 
         # test with no bind databases
 
-        sqls = ["show databases;",
+        sqls = ["select * from information_schema.ins_databases;",
         "use test", 
         "show tables;",
-        "show dnodes;",
+        "select * from information_schema.ins_dnodes;",
         "show vgroups;",
         "create database db;",
         "drop database db;",

tests/pytest/restful/restful_bind_db2.py

@@ -60,10 +60,10 @@ class TDTestCase():
 
         # test with no bind databases
 
-        sqls = ["show databases;",
+        sqls = ["select * from information_schema.ins_databases;",
         "use test", 
         "show tables;",
-        "show dnodes;",
+        "select * from information_schema.ins_dnodes;",
         "show vgroups;",
         "create database db;",
         "drop database db;",

tests/pytest/stream/test2.py

@@ -14,7 +14,7 @@ class TDTestCase:
         #for i in range(100):
             tdSql.prepare()
             dbname = tdCom.getLongName(10, "letters")
-            tdSql.execute('show databases')
+            tdSql.execute('select * from information_schema.ins_databases')
             tdSql.execute('drop database if exists ttxkbrzmpo')
             tdSql.execute('create database if not exists ttxkbrzmpo vgroups 1')
             tdSql.execute('use ttxkbrzmpo')

tests/pytest/table/column_num.py

@@ -104,9 +104,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/table/db_table.py

@@ -34,8 +34,8 @@ class TDTestCase:
         tdLog.info('=============== step6')
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
 # convert end

tests/pytest/tag_lite/3.py

@@ -1311,9 +1311,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/4.py

@@ -1855,9 +1855,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/5.py

@@ -2283,9 +2283,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/6.py

@@ -2731,9 +2731,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/add.py

@@ -2055,9 +2055,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('sql drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/bigint.py

@@ -561,9 +561,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/binary.py

@@ -565,9 +565,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/binary_binary.py

@@ -776,9 +776,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/bool.py

@@ -560,9 +560,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/bool_binary.py

@@ -770,9 +770,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/bool_int.py

@@ -802,9 +802,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/change.py

@@ -924,9 +924,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/column.py

@@ -176,9 +176,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/commit.py

@@ -2300,9 +2300,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/delete.py

@@ -1697,9 +1697,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/double.py

@@ -561,9 +561,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/filter.py

@@ -351,9 +351,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/float.py

@@ -561,9 +561,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/int.py

@@ -560,9 +560,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/int_binary.py

@@ -768,9 +768,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/int_float.py

@@ -804,9 +804,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/set.py

@@ -875,9 +875,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/smallint.py

@@ -561,9 +561,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/tinyint.py

@@ -561,9 +561,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/unsignedBigint.py

@@ -561,9 +561,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/unsignedInt.py

@@ -562,9 +562,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/unsignedSmallint.py

@@ -561,9 +561,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tag_lite/unsignedTinyint.py

@@ -561,9 +561,9 @@ class TDTestCase:
         # TSIM: sql drop database $db
         tdLog.info('drop database db')
         tdSql.execute('drop database db')
-        # TSIM: sql show databases
-        tdLog.info('show databases')
-        tdSql.query('show databases')
+        # TSIM: sql select * from information_schema.ins_databases
+        tdLog.info('select * from information_schema.ins_databases')
+        tdSql.query('select * from information_schema.ins_databases')
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)

tests/pytest/tools/taosdemoTestWithoutMetric.py

@@ -53,7 +53,7 @@ class TDTestCase:
         os.system("%staosdemo -N -y -t %d -n %d" %
                   (binPath, self.numberOfTables, self.numberOfRecords))
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         for i in range(18):
             print(tdSql.getData(0, i) )
         tdSql.checkData(0, 2, self.numberOfTables)

tests/pytest/tools/taosdumpTest.py

@@ -99,14 +99,14 @@ class TDTestCase:
 
         tdSql.execute("drop database db")
         tdSql.execute("drop database db1")
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(2)
 
         os.system("%s -i ./taosdumptest/tmp1" % binPath)
         os.system("%s -i ./taosdumptest/tmp2" % binPath)
 
         tdSql.execute("use db")
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(4)
         dbresult = tdSql.queryResult
         # 6--duration,7--keep0,keep1,keep

tests/pytest/tools/taosdumpTest2.py

@@ -81,12 +81,12 @@ class TDTestCase:
             binPath)
 
         tdSql.execute("drop database db")
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(2)
 
         os.system("%s -i ./taosdumptest/tmp" % binPath)
 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(3)
         tdSql.checkData(2, 0, 'db')
 
@@ -115,7 +115,7 @@ class TDTestCase:
         os.system("%s -D test -o ./taosdumptest/tmp -y" % binPath)
 
         tdSql.execute("drop database test")
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.checkRows(3)
 
         os.system("%s -i ./taosdumptest/tmp -y" % binPath)

tests/pytest/tsdb/tsdbCompCluster.py

@@ -131,7 +131,7 @@ class TwoClients:
 
 
         # check data correct 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.execute("use db2")
         tdSql.query("select count (tbname) from stb0")
         tdSql.checkData(0, 0, 1)

tests/pytest/tsdb/tsdbCompClusterReplica2.py

@@ -142,7 +142,7 @@ class TwoClients:
         tdSql.init(cur2, True)
 
         # check data correct 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         tdSql.execute("use db2")
         tdSql.query("select count (tbname) from stb0")
         tdSql.checkData(0, 0, 1)

tests/pytest/util/cluster.py

@@ -72,7 +72,7 @@ class ConfigureyCluster:
         tdSql.init(conn.cursor())
         count=0
         while count < 5:
-            tdSql.query("show dnodes")
+            tdSql.query("select * from information_schema.ins_dnodes")
             # tdLog.debug(tdSql.queryResult)
             status=0
             for i in range(self.dnodeNums):

tests/pytest/wal/sdbCompCluster.py

@@ -106,7 +106,7 @@ class TwoClients:
         tdSql.init(cur2, True)
 
         # use new wal file to start up tasod 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         for i in range(tdSql.queryRows):
             if tdSql.queryResult[i][0]=="db2":
                 assert tdSql.queryResult[i][4]==1 , "replica is wrong"

tests/pytest/wal/sdbCompClusterReplica2.py

@@ -116,7 +116,7 @@ class TwoClients:
         tdSql.init(cur2, True)
 
         # use new wal file to start up tasod 
-        tdSql.query("show databases")
+        tdSql.query("select * from information_schema.ins_databases")
         for i in range(tdSql.queryRows):
             if tdSql.queryResult[i][0]=="db2":
                 assert tdSql.queryResult[i][4]==2 , "replica is wrong"

tests/script/tmp/data.sim

@@ -23,7 +23,7 @@ step1:
 	  print ====> dnode not ready!
 		return -1
 	endi
-sql show dnodes
+sql select * from information_schema.ins_dnodes
 print ===> rows: $rows 
 print ===> $data00 $data01 $data02 $data03 $data04 $data05
 print ===> $data10 $data11 $data12 $data13 $data14 $data15
@@ -49,7 +49,7 @@ return
 
 print =============== step2: create database
 sql create database db vgroups 1 replica 3
-sql show databases
+sql select * from information_schema.ins_databases
 if $rows != 3 then 
   return -1
 endi
@@ -57,7 +57,7 @@ if $data(db)[4] != 3 then
   return -1
 endi
 
-sql show dnodes
+sql select * from information_schema.ins_dnodes
 if $data(2)[2] != 1 then
   return -1
 endi
@@ -69,7 +69,7 @@ if $data(4)[2] != 1 then
 endi
 
 # vnodes
-sql show dnodes
+sql select * from information_schema.ins_dnodes
 if $data(2)[2] != 1 then
   return -1
 endi
@@ -118,8 +118,8 @@ sql use db;
 sql create table stb (ts timestamp, c int) tags (t int);
 sql create table t0 using stb tags (0);
 sql insert into t0 values(now, 1);
-sql show db.stables;
-sql show db.tables;
+sql select * from information_schema.ins_stables where db_name = 'db';
+sql select * from information_schema.ins_tables where db_name = 'db';
 sql show db.vgroups;
 
 return

tests/script/tmp/monitor.sim

@@ -14,7 +14,7 @@ system sh/cfg.sh -n dnode1 -c monitorComp -v 1
 system sh/exec.sh -n dnode1 -s start
 sql connect
 
-print =============== show dnodes
+print =============== select * from information_schema.ins_dnodes
 sql create database db vgroups 2;
 sql use db;
 sql create table db.stb (ts timestamp, c1 int, c2 binary(4)) tags(t1 int, t2 binary(16)) comment "abd";

tests/script/tmp/prepare.sim

@@ -35,5 +35,5 @@ sql use db;
 sql create table if not exists stb (ts timestamp, c1 int, c2 float, c3 double) tags (t1 int unsigned);
 sql create table ct1 using stb tags(1000);
 sql create table ct2 using stb tags(1000) ;
-sql show db.tables;
+sql select * from information_schema.ins_tables where db_name = 'db';
 sql insert into ct1 values(now+0s, 10, 2.0, 3.0);
\ No newline at end of file

tests/script/tmp/r1.sim

@@ -17,7 +17,7 @@ step1:
 	  print ====> dnode not ready!
 		return -1
 	endi
-sql show dnodes
+sql select * from information_schema.ins_dnodes
 print ===> rows: $rows 
 print ===> $data00 $data01 $data02 $data03 $data04 $data05
 print ===> $data10 $data11 $data12 $data13 $data14 $data15
@@ -33,7 +33,7 @@ endi
 
 print =============== step2: create database
 sql create database db vgroups 1 replica 1
-sql show databases
+sql select * from information_schema.ins_databases
 if $rows != 3 then 
   return -1
 endi