TD-13077 `string` identifier implement

source/libs/parser/inc/parAst.h

@@ -142,7 +142,7 @@ SNode* createAlterTableAddModifyCol(SAstCreateContext* pCxt, SNode* pRealTable,
 SNode* createAlterTableDropCol(SAstCreateContext* pCxt, SNode* pRealTable, int8_t alterType, const SToken* pColName);
 SNode* createAlterTableRenameCol(SAstCreateContext* pCxt, SNode* pRealTable, int8_t alterType, const SToken* pOldColName, const SToken* pNewColName);
 SNode* createAlterTableSetTag(SAstCreateContext* pCxt, SNode* pRealTable, const SToken* pTagName, SNode* pVal);
-SNode* createUseDatabaseStmt(SAstCreateContext* pCxt, const SToken* pDbName);
+SNode* createUseDatabaseStmt(SAstCreateContext* pCxt, SToken* pDbName);
 SNode* createShowStmt(SAstCreateContext* pCxt, ENodeType type, SNode* pDbName, SNode* pTbNamePattern);
 SNode* createCreateUserStmt(SAstCreateContext* pCxt, SToken* pUserName, const SToken* pPassword);
 SNode* createAlterUserStmt(SAstCreateContext* pCxt, SToken* pUserName, int8_t alterType, const SToken* pVal);

source/libs/parser/src/parAstCreater.c

@@ -1046,7 +1046,10 @@ SNode* createAlterTableSetTag(SAstCreateContext* pCxt, SNode* pRealTable, const
   return (SNode*)pStmt;
 }
 
-SNode* createUseDatabaseStmt(SAstCreateContext* pCxt, const SToken* pDbName) {
+SNode* createUseDatabaseStmt(SAstCreateContext* pCxt, SToken* pDbName) {
+  if (!checkDbName(pCxt, pDbName, false)) {
+    return NULL;
+  }
   SUseDatabaseStmt* pStmt = (SUseDatabaseStmt*)nodesMakeNode(QUERY_NODE_USE_DATABASE_STMT);
   CHECK_OUT_OF_MEM(pStmt);
   strncpy(pStmt->dbName, pDbName->z, pDbName->n);