enh(query): record and return the schema version and tags version of current queried table.

include/libs/executor/executor.h

@@ -95,6 +95,15 @@ int32_t qUpdateQualifiedTableId(qTaskInfo_t tinfo, const SArray* tableIdList, bo
 int32_t qCreateExecTask(SReadHandle* readHandle, int32_t vgId, uint64_t taskId, struct SSubplan* pPlan,
                         qTaskInfo_t* pTaskInfo, DataSinkHandle* handle, EOPTR_EXEC_MODEL model);
 
+/**
+ *
+ * @param tinfo
+ * @param sversion
+ * @param tversion
+ * @return
+ */
+int32_t qGetQueriedTableSchemaVersion(qTaskInfo_t tinfo, char* dbName, char* tableName, int32_t* sversion, int32_t* tversion);
+
 /**
  * The main task execution function, including query on both table and multiple tables,
  * which are decided according to the tag or table name query conditions

source/libs/executor/inc/executorimpl.h

@@ -217,6 +217,13 @@ typedef struct SExecTaskInfo {
   int64_t          owner;  // if it is in execution
   int32_t          code;
   uint64_t         totalRows;            // total number of rows
+  struct {
+    char          *tablename;
+    char          *dbname;
+    int32_t        sversion;
+    int32_t        tversion;
+  } schemaVer;
+
   STableGroupInfo  tableqinfoGroupInfo;  // this is a group array list, including SArray<STableQueryInfo*> structure
   char*            sql;                  // query sql string
   jmp_buf          env;                  // jump to this position when error happens.
@@ -670,7 +677,8 @@ SSDataBlock* loadNextDataBlock(void* param);
 void setResultRowInitCtx(SResultRow* pResult, SqlFunctionCtx* pCtx, int32_t numOfOutput, int32_t* rowCellInfoOffset);
 
 SArray* extractColMatchInfo(SNodeList* pNodeList, SDataBlockDescNode* pOutputNodeList, int32_t* numOfOutputCols,
-                            int32_t type);
+                            SExecTaskInfo* pTaskInfo, int32_t type);
+
 SExprInfo* createExprInfo(SNodeList* pNodeList, SNodeList* pGroupKeys, int32_t* numOfExprs);
 SSDataBlock* createResDataBlock(SDataBlockDescNode* pNode);
 int32_t initQueryTableDataCond(SQueryTableDataCond* pCond, const STableScanPhysiNode* pTableScanNode);

source/libs/executor/src/executor.c

@@ -14,6 +14,7 @@
  */
 
 #include "executor.h"
+#include <executorimpl.h>
 #include <vnode.h>
 #include "executorimpl.h"
 #include "planner.h"
@@ -171,3 +172,15 @@ int32_t qUpdateQualifiedTableId(qTaskInfo_t tinfo, const SArray* tableIdList, bo
 
   return TSDB_CODE_SUCCESS;
 }
+
+int32_t qGetQueriedTableSchemaVersion(qTaskInfo_t tinfo, char* dbName, char* tableName, int32_t* sversion, int32_t* tversion) {
+  ASSERT(tinfo != NULL && dbName != NULL && tableName != NULL);
+  SExecTaskInfo* pTaskInfo = (SExecTaskInfo*) tinfo;
+
+  *sversion = pTaskInfo->schemaVer.sversion;
+  *tversion = pTaskInfo->schemaVer.tversion;
+  strcpy(dbName, pTaskInfo->schemaVer.dbname);
+  strcpy(tableName, pTaskInfo->schemaVer.tablename);
+
+  return 0;
+}
\ No newline at end of file

source/libs/executor/src/executorimpl.c

@@ -13,6 +13,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <executorimpl.h>
 #include "filter.h"
 #include "function.h"
 #include "functionMgt.h"
@@ -4653,6 +4654,26 @@ static SArray* extractColumnInfo(SNodeList* pNodeList);
 static SArray* createSortInfo(SNodeList* pNodeList);
 static SArray* extractPartitionColInfo(SNodeList* pNodeList);
 
+void extractTableSchemaVersion(SReadHandle *pHandle, uint64_t uid, SExecTaskInfo* pTaskInfo) {
+  SMetaReader mr = {0};
+  metaReaderInit(&mr, pHandle->meta, 0);
+  metaGetTableEntryByUid(&mr, uid);
+
+  pTaskInfo->schemaVer.tablename = strdup(mr.me.name);
+
+  if (mr.me.type == TSDB_SUPER_TABLE) {
+    pTaskInfo->schemaVer.sversion = mr.me.stbEntry.schema.sver;
+    pTaskInfo->schemaVer.tversion = mr.me.stbEntry.schemaTag.sver;
+  } else if (mr.me.type == TSDB_CHILD_TABLE) {
+    tb_uid_t suid = mr.me.ctbEntry.suid;
+    metaGetTableEntryByUid(&mr, suid);
+    pTaskInfo->schemaVer.sversion = mr.me.stbEntry.schema.sver;
+    pTaskInfo->schemaVer.tversion = mr.me.stbEntry.schemaTag.sver;
+  } else {
+    pTaskInfo->schemaVer.sversion = mr.me.ntbEntry.schema.sver;
+  }
+}
+
 SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo, SReadHandle* pHandle,
                                   uint64_t queryId, uint64_t taskId, STableGroupInfo* pTableGroupInfo) {
   int32_t type = nodeType(pPhyNode);
@@ -4666,6 +4687,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
         return NULL;
       }
 
+      extractTableSchemaVersion(pHandle, pTableScanNode->scan.uid, pTaskInfo);
       SOperatorInfo* pOperator = createTableScanOperatorInfo(pTableScanNode, pDataReader, pHandle, pTaskInfo);
 
       STableScanInfo* pScanInfo = pOperator->info;
@@ -4703,7 +4725,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
       SArray* tableIdList = extractTableIdList(pTableGroupInfo);
 
       SSDataBlock* pResBlock = createResDataBlock(pDescNode);
-      SArray*      pCols = extractColMatchInfo(pScanPhyNode->pScanCols, pDescNode, &numOfCols, COL_MATCH_FROM_COL_ID);
+      SArray*      pCols = extractColMatchInfo(pScanPhyNode->pScanCols, pDescNode, &numOfCols, pTaskInfo, COL_MATCH_FROM_COL_ID);
 
       SOperatorInfo* pOperator = createStreamScanOperatorInfo(pHandle->reader, pDataReader, pHandle, pScanPhyNode->uid, pResBlock, pCols, tableIdList, pTaskInfo,
                                                               pScanPhyNode->node.pConditions, pOperatorDumy);
@@ -4718,7 +4740,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
       SSDataBlock* pResBlock = createResDataBlock(pDescNode);
 
       int32_t numOfOutputCols = 0;
-      SArray* colList = extractColMatchInfo(pScanNode->pScanCols, pDescNode, &numOfOutputCols, COL_MATCH_FROM_COL_ID);
+      SArray* colList = extractColMatchInfo(pScanNode->pScanCols, pDescNode, &numOfOutputCols, pTaskInfo, COL_MATCH_FROM_COL_ID);
       SOperatorInfo* pOperator = createSysTableScanOperatorInfo(
           pHandle, pResBlock, &pScanNode->tableName, pScanNode->node.pConditions, pSysScanPhyNode->mgmtEpSet, colList,
           pTaskInfo, pSysScanPhyNode->showRewrite, pSysScanPhyNode->accountId);
@@ -4741,7 +4763,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
 
       int32_t numOfOutputCols = 0;
       SArray* colList =
-          extractColMatchInfo(pScanPhyNode->pScanPseudoCols, pDescNode, &numOfOutputCols, COL_MATCH_FROM_COL_ID);
+          extractColMatchInfo(pScanPhyNode->pScanPseudoCols, pDescNode, &numOfOutputCols, pTaskInfo, COL_MATCH_FROM_COL_ID);
 
       SOperatorInfo* pOperator =
           createTagScanOperatorInfo(pHandle, pExprInfo, num, pResBlock, colList, pTableGroupInfo, pTaskInfo);
@@ -4823,7 +4845,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
     SExprInfo* pExprInfo = createExprInfo(pSortPhyNode->pExprs, NULL, &numOfCols);
 
     int32_t numOfOutputCols = 0;
-    SArray* pColList = extractColMatchInfo(pSortPhyNode->pTargets, pDescNode, &numOfOutputCols, COL_MATCH_FROM_SLOT_ID);
+    SArray* pColList = extractColMatchInfo(pSortPhyNode->pTargets, pDescNode, &numOfOutputCols, pTaskInfo, COL_MATCH_FROM_SLOT_ID);
 
     pOptr = createSortOperatorInfo(ops[0], pResBlock, info, pExprInfo, numOfCols, pColList, pTaskInfo);
   } else if (QUERY_NODE_PHYSICAL_PLAN_SESSION_WINDOW == type) {
@@ -5014,7 +5036,7 @@ SArray* createSortInfo(SNodeList* pNodeList) {
 }
 
 SArray* extractColMatchInfo(SNodeList* pNodeList, SDataBlockDescNode* pOutputNodeList, int32_t* numOfOutputCols,
-                            int32_t type) {
+                            SExecTaskInfo* pTaskInfo, int32_t type) {
   size_t  numOfCols = LIST_LENGTH(pNodeList);
   SArray* pList = taosArrayInit(numOfCols, sizeof(SColMatchInfo));
   if (pList == NULL) {
@@ -5022,10 +5044,16 @@ SArray* extractColMatchInfo(SNodeList* pNodeList, SDataBlockDescNode* pOutputNod
     return NULL;
   }
 
+  const char* tname = pTaskInfo->schemaVer.tablename;
   for (int32_t i = 0; i < numOfCols; ++i) {
     STargetNode* pNode = (STargetNode*)nodesListGetNode(pNodeList, i);
     SColumnNode* pColNode = (SColumnNode*)pNode->pExpr;
 
+    if (tname != NULL && (pTaskInfo->schemaVer.dbname == NULL) &&
+        strncmp(pColNode->tableName, tname, tListLen(pColNode->tableName)) == 0) {
+      pTaskInfo->schemaVer.dbname = strdup(pColNode->dbName);
+    }
+
     SColMatchInfo c = {0};
     c.output = true;
     c.colId = pColNode->colId;
@@ -5219,6 +5247,8 @@ void doDestroyTask(SExecTaskInfo* pTaskInfo) {
   //  taosArrayDestroy(pTaskInfo->summary.queryProfEvents);
   //  taosHashCleanup(pTaskInfo->summary.operatorProfResults);
 
+  taosMemoryFree(pTaskInfo->schemaVer.dbname);
+  taosMemoryFree(pTaskInfo->schemaVer.tablename);
   taosMemoryFreeClear(pTaskInfo->sql);
   taosMemoryFreeClear(pTaskInfo->id.str);
   taosMemoryFreeClear(pTaskInfo);

source/libs/executor/src/scanoperator.c

@@ -455,7 +455,7 @@ SOperatorInfo* createTableScanOperatorInfo(STableScanPhysiNode* pTableScanNode,
   SDataBlockDescNode* pDescNode = pTableScanNode->scan.node.pOutputDataBlockDesc;
 
   int32_t numOfCols = 0;
-  SArray* pColList = extractColMatchInfo(pTableScanNode->scan.pScanCols, pDescNode, &numOfCols, COL_MATCH_FROM_COL_ID);
+  SArray* pColList = extractColMatchInfo(pTableScanNode->scan.pScanCols, pDescNode, &numOfCols, pTaskInfo, COL_MATCH_FROM_COL_ID);
 
   int32_t code = initQueryTableDataCond(&pInfo->cond, pTableScanNode);
   if (code != TSDB_CODE_SUCCESS) {