TD-13981 show databases rewrite

source/libs/parser/inc/parUtil.h

@@ -23,6 +23,13 @@ extern "C" {
 #include "os.h"
 #include "query.h"
 
+#define parserFatal(param, ...)  qFatal("PARSER: " param, __VA_ARGS__)
+#define parserError(param, ...)  qError("PARSER: " param, __VA_ARGS__)
+#define parserWarn(param, ...)   qWarn("PARSER: " param, __VA_ARGS__)
+#define parserInfo(param, ...)   qInfo("PARSER: " param, __VA_ARGS__)
+#define parserDebug(param, ...)  qDebug("PARSER: " param, __VA_ARGS__)
+#define parserTrace(param, ...)  qTrace("PARSER: " param, __VA_ARGS__)
+
 typedef struct SMsgBuf {
   int32_t len;
   char   *buf;

source/libs/parser/src/parInsert.c

@@ -1024,7 +1024,6 @@ int32_t parseInsertSql(SParseContext* pContext, SQuery** pQuery) {
   };
 
   if (NULL == context.pVgroupsHashObj || NULL == context.pTableBlockHashObj || NULL == context.pOutput) {
-    terrno = TSDB_CODE_TSC_OUT_OF_MEMORY;
     return TSDB_CODE_TSC_OUT_OF_MEMORY;
   }
 
@@ -1043,6 +1042,5 @@ int32_t parseInsertSql(SParseContext* pContext, SQuery** pQuery) {
     code = parseInsertBody(&context);
   }
   destroyInsertParseContext(&context);
-  terrno = code;
   return code;
 }

source/libs/parser/src/parTranslater.c

@@ -69,14 +69,78 @@ static int32_t addNamespace(STranslateContext* pCxt, void* pTable) {
   return TSDB_CODE_SUCCESS;
 }
 
-static SName* toName(int32_t acctId, const SRealTableNode* pRealTable, SName* pName) {
+static SName* toName(int32_t acctId, const char* pDbName, const char* pTableName, SName* pName) {
   pName->type = TSDB_TABLE_NAME_T;
   pName->acctId = acctId;
-  strcpy(pName->dbname, pRealTable->table.dbName);
-  strcpy(pName->tname, pRealTable->table.tableName);
+  strcpy(pName->dbname, pDbName);
+  strcpy(pName->tname, pTableName);
   return pName;
 }
 
+static int32_t getTableMetaImpl(SParseContext* pCxt, const SName* pName, STableMeta** pMeta) {
+  int32_t code = catalogGetTableMeta(pCxt->pCatalog, pCxt->pTransporter, &pCxt->mgmtEpSet, pName, pMeta);
+  if (TSDB_CODE_SUCCESS != code) {
+    parserError("catalogGetTableMeta error, code:%s, dbName:%s, tbName:%s", tstrerror(code), pName->dbname, pName->tname);
+  }
+  return code;
+}
+
+static int32_t getTableMeta(SParseContext* pCxt, const char* pDbName, const char* pTableName, STableMeta** pMeta) {
+  SName name = { .type = TSDB_TABLE_NAME_T, .acctId = pCxt->acctId };
+  strcpy(name.dbname, pDbName);
+  strcpy(name.tname, pTableName);
+  return getTableMetaImpl(pCxt, &name, pMeta);
+}
+
+static int32_t getTableDistVgInfo(SParseContext* pCxt, const SName* pName, SArray** pVgInfo) {
+  int32_t code = catalogGetTableDistVgInfo(pCxt->pCatalog, pCxt->pTransporter, &pCxt->mgmtEpSet, pName, pVgInfo);
+  if (TSDB_CODE_SUCCESS != code) {
+    parserError("catalogGetTableDistVgInfo error, code:%s, dbName:%s, tbName:%s", tstrerror(code), pName->dbname, pName->tname);
+  }
+  return code;
+}
+
+static int32_t getDBVgInfoImpl(SParseContext* pCxt, const SName* pName, SArray** pVgInfo) {
+  char fullDbName[TSDB_DB_FNAME_LEN];
+  tNameGetFullDbName(pName, fullDbName);
+  int32_t code = catalogGetDBVgInfo(pCxt->pCatalog, pCxt->pTransporter, &pCxt->mgmtEpSet, fullDbName, pVgInfo);
+  if (TSDB_CODE_SUCCESS != code) {
+    parserError("catalogGetDBVgInfo error, code:%s, dbFName:%s", tstrerror(code), fullDbName);
+  }
+  return code;
+}
+
+static int32_t getDBVgInfo(SParseContext* pCxt, const char* pDbName, SArray** pVgInfo) {
+  SName name;
+  tNameSetDbName(&name, pCxt->acctId, pDbName, strlen(pDbName));
+  char dbFname[TSDB_DB_FNAME_LEN] = {0};
+  tNameGetFullDbName(&name, dbFname);
+  return getDBVgInfoImpl(pCxt, &name, pVgInfo);
+}
+
+static int32_t getTableHashVgroupImpl(SParseContext* pCxt, const SName* pName, SVgroupInfo* pInfo) {
+  int32_t code = catalogGetTableHashVgroup(pCxt->pCatalog, pCxt->pTransporter, &pCxt->mgmtEpSet, pName, pInfo);
+  if (TSDB_CODE_SUCCESS != code) {
+    parserError("catalogGetTableHashVgroup error, code:%s, dbName:%s, tbName:%s", tstrerror(code), pName->dbname, pName->tname);
+  }
+  return code;
+}
+
+static int32_t getTableHashVgroup(SParseContext* pCxt, const char* pDbName, const char* pTableName, SVgroupInfo* pInfo) {
+  SName name = { .type = TSDB_TABLE_NAME_T, .acctId = pCxt->acctId };
+  strcpy(name.dbname, pDbName);
+  strcpy(name.tname, pTableName);
+  return getTableHashVgroupImpl(pCxt, &name, pInfo);
+}
+
+static int32_t getDBVgVersion(SParseContext* pCxt, const char* pDbFName, int32_t* pVersion, int64_t* pDbId, int32_t* pTableNum) {
+  int32_t code = catalogGetDBVgVersion(pCxt->pCatalog, pDbFName, pVersion, pDbId, pTableNum);
+  if (TSDB_CODE_SUCCESS != code) {
+    parserError("catalogGetDBVgVersion error, code:%s, dbFName:%s", tstrerror(code), pDbFName);
+  }
+  return code;
+}
+
 static bool belongTable(const char* currentDb, const SColumnNode* pCol, const STableNode* pTable) {
   int cmp = 0;
   if ('\0' != pCol->dbName[0]) {
@@ -517,17 +581,14 @@ static int32_t setTableVgroupList(SParseContext* pCxt, SName* pName, SRealTableN
   int32_t code = TSDB_CODE_SUCCESS;
   if (TSDB_SUPER_TABLE == pRealTable->pMeta->tableType) {
     SArray* vgroupList = NULL;
-    code = catalogGetTableDistVgInfo(pCxt->pCatalog, pCxt->pTransporter, &pCxt->mgmtEpSet, pName, &vgroupList);
+    code = getTableDistVgInfo(pCxt, pName, &vgroupList);
     if (TSDB_CODE_SUCCESS == code) {
       code = toVgroupsInfo(vgroupList, &pRealTable->pVgroupList);
     }
     taosArrayDestroy(vgroupList);
   } else if (TSDB_SYSTEM_TABLE == pRealTable->pMeta->tableType) {
     SArray* vgroupList = NULL;
-    char fullDbName[TSDB_DB_FNAME_LEN];
-    // tNameGetFullDbName(pName, fullDbName);
-    snprintf(fullDbName, TSDB_DB_FNAME_LEN, "%d.%s", pCxt->acctId, "test");
-    code = catalogGetDBVgInfo(pCxt->pCatalog, pCxt->pTransporter, &pCxt->mgmtEpSet, fullDbName, false, &vgroupList);    
+    code = getDBVgInfoImpl(pCxt, pName, &vgroupList);
     if (TSDB_CODE_SUCCESS == code) {
       code = toVgroupsInfo(vgroupList, &pRealTable->pVgroupList);
     }
@@ -538,7 +599,7 @@ static int32_t setTableVgroupList(SParseContext* pCxt, SName* pName, SRealTableN
       return TSDB_CODE_OUT_OF_MEMORY;
     }
     pRealTable->pVgroupList->numOfVgroups = 1;
-    code = catalogGetTableHashVgroup(pCxt->pCatalog, pCxt->pTransporter, &pCxt->mgmtEpSet, pName, pRealTable->pVgroupList->vgroups);
+    code = getTableHashVgroupImpl(pCxt, pName, pRealTable->pVgroupList->vgroups);
   }
   return code;
 }
@@ -549,8 +610,8 @@ static int32_t translateTable(STranslateContext* pCxt, SNode* pTable) {
     case QUERY_NODE_REAL_TABLE: {
       SRealTableNode* pRealTable = (SRealTableNode*)pTable;
       SName name;
-      code = catalogGetTableMeta(pCxt->pParseCxt->pCatalog, pCxt->pParseCxt->pTransporter, &(pCxt->pParseCxt->mgmtEpSet),
-          toName(pCxt->pParseCxt->acctId, pRealTable, &name), &(pRealTable->pMeta));
+      code = getTableMetaImpl(pCxt->pParseCxt,
+          toName(pCxt->pParseCxt->acctId, pRealTable->table.dbName, pRealTable->table.tableName, &name), &(pRealTable->pMeta));
       if (TSDB_CODE_SUCCESS != code) {
         return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_TABLE_NOT_EXIST, pRealTable->table.tableName);
       }
@@ -906,11 +967,10 @@ static int32_t doTranslateDropSuperTable(STranslateContext* pCxt, const SName* p
 static int32_t translateDropTable(STranslateContext* pCxt, SDropTableStmt* pStmt) {
   SDropTableClause* pClause = nodesListGetNode(pStmt->pTables, 0);
 
-  SName tableName = { .type = TSDB_TABLE_NAME_T, .acctId = pCxt->pParseCxt->acctId };
-  strcpy(tableName.dbname, pClause->dbName);
-  strcpy(tableName.tname, pClause->tableName);
   STableMeta* pTableMeta = NULL;
-  int32_t code = catalogGetTableMeta(pCxt->pParseCxt->pCatalog, pCxt->pParseCxt->pTransporter, &(pCxt->pParseCxt->mgmtEpSet), &tableName, &pTableMeta);
+  SName tableName;
+  int32_t code = getTableMetaImpl(
+      pCxt->pParseCxt, toName(pCxt->pParseCxt->acctId, pClause->dbName, pClause->tableName, &tableName), &pTableMeta);
   if (TSDB_CODE_SUCCESS == code) {
     if (TSDB_SUPER_TABLE == pTableMeta->tableType) {
       code = doTranslateDropSuperTable(pCxt, &tableName, pClause->ignoreNotExists);
@@ -918,8 +978,8 @@ static int32_t translateDropTable(STranslateContext* pCxt, SDropTableStmt* pStmt
       // todo : drop normal table or child table
       code = TSDB_CODE_FAILED;
     }
+    tfree(pTableMeta);
   }
-  tfree(pTableMeta);
 
   return code;
 }
@@ -932,13 +992,14 @@ static int32_t translateDropSuperTable(STranslateContext* pCxt, SDropSuperTableS
 }
 
 static int32_t translateUseDatabase(STranslateContext* pCxt, SUseDatabaseStmt* pStmt) {
+  SUseDbReq usedbReq = {0};
   SName name = {0};
   tNameSetDbName(&name, pCxt->pParseCxt->acctId, pStmt->dbName, strlen(pStmt->dbName));
-
-  SUseDbReq usedbReq = {0};
   tNameExtractFullName(&name, usedbReq.db);
-
-  catalogGetDBVgVersion(pCxt->pParseCxt->pCatalog, usedbReq.db, &usedbReq.vgVersion, &usedbReq.dbId, &usedbReq.numOfTable);
+  int32_t code = getDBVgVersion(pCxt->pParseCxt, usedbReq.db, &usedbReq.vgVersion, &usedbReq.dbId, &usedbReq.numOfTable);
+  if (TSDB_CODE_SUCCESS != code) {
+    return code;
+  }
 
   pCxt->pCmdMsg = malloc(sizeof(SCmdMsgInfo));
   if (NULL== pCxt->pCmdMsg) {
@@ -1114,19 +1175,14 @@ static int32_t translateShow(STranslateContext* pCxt, SShowStmt* pStmt) {
 }
 
 static int32_t translateShowTables(STranslateContext* pCxt) {
-  SName name = {0};
   SVShowTablesReq* pShowReq = calloc(1, sizeof(SVShowTablesReq));
   if (pCxt->pParseCxt->db == NULL || strlen(pCxt->pParseCxt->db) == 0) {
     return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_TSC_INVALID_OPERATION, "db not specified");
   }
 
-  tNameSetDbName(&name, pCxt->pParseCxt->acctId, pCxt->pParseCxt->db, strlen(pCxt->pParseCxt->db));
-  char dbFname[TSDB_DB_FNAME_LEN] = {0};
-  tNameGetFullDbName(&name, dbFname);
-
   SArray* array = NULL;
-  int32_t code = catalogGetDBVgInfo(pCxt->pParseCxt->pCatalog, pCxt->pParseCxt->pTransporter, &pCxt->pParseCxt->mgmtEpSet, dbFname, &array);
-  if (code != TSDB_CODE_SUCCESS) {
+  int32_t code = getDBVgInfo(pCxt->pParseCxt, pCxt->pParseCxt->db, &array);
+  if (TSDB_CODE_SUCCESS != code) {
     return code;
   }
   SVgroupInfo* info = taosArrayGet(array, 0);
@@ -1353,13 +1409,6 @@ static void destroyCreateTbReqBatch(SVgroupTablesBatch* pTbBatch) {
   taosArrayDestroy(pTbBatch->req.pArray);
 }
 
-static int32_t getTableHashVgroup(SParseContext* pCxt, const char* pDbName, const char* pTableName, SVgroupInfo* pInfo) {
-  SName name = { .type = TSDB_TABLE_NAME_T, .acctId = pCxt->acctId };
-  strcpy(name.dbname, pDbName);
-  strcpy(name.tname, pTableName);
-  return catalogGetTableHashVgroup(pCxt->pCatalog, pCxt->pTransporter, &pCxt->mgmtEpSet, &name, pInfo);
-}
-
 static int32_t rewriteToVnodeModifOpStmt(SQuery* pQuery, SArray* pBufArray) {
   SVnodeModifOpStmt* pNewStmt = nodesMakeNode(QUERY_NODE_VNODE_MODIF_STMT);
   if (pNewStmt == NULL) {
@@ -1544,12 +1593,9 @@ static int32_t buildKVRowForAllTags(STranslateContext* pCxt, SCreateSubTableClau
 }
 
 static int32_t rewriteCreateSubTable(STranslateContext* pCxt, SCreateSubTableClause* pStmt, SHashObj* pVgroupHashmap) {
-  SName name = { .type = TSDB_TABLE_NAME_T, .acctId = pCxt->pParseCxt->acctId };
-  strcpy(name.dbname, pStmt->useDbName);
-  strcpy(name.tname, pStmt->useTableName);
   STableMeta* pSuperTableMeta = NULL;
-  int32_t code = catalogGetTableMeta(pCxt->pParseCxt->pCatalog, pCxt->pParseCxt->pTransporter, &pCxt->pParseCxt->mgmtEpSet, &name, &pSuperTableMeta);
-  
+  int32_t code = getTableMeta(pCxt->pParseCxt, pStmt->useDbName, pStmt->useTableName, &pSuperTableMeta);
+
   SKVRowBuilder kvRowBuilder = {0};
   if (TSDB_CODE_SUCCESS == code) {
     code = tdInitKVRowBuilder(&kvRowBuilder);

source/libs/parser/src/parser.c

@@ -38,11 +38,14 @@ static int32_t parseSqlIntoAst(SParseContext* pCxt, SQuery** pQuery) {
 }
 
 int32_t qParseQuerySql(SParseContext* pCxt, SQuery** pQuery) {
+  int32_t code = TSDB_CODE_SUCCESS;
   if (isInsertSql(pCxt->pSql, pCxt->sqlLen)) {
-    return parseInsertSql(pCxt, pQuery);
+    code = parseInsertSql(pCxt, pQuery);
   } else {
-    return parseSqlIntoAst(pCxt, pQuery);
+    code = parseSqlIntoAst(pCxt, pQuery);
   }
+  terrno = code;
+  return code;
 }
 
 void qDestroyQuery(SQuery* pQueryNode) {