Merge pull request #22700 from taosdata/fix/TD-26104

fix: select tags from child table error

source/libs/planner/src/planLogicCreater.c

@@ -373,6 +373,11 @@ static bool tagScanNodeHasTbname(SNode* pKeys) {
 static int32_t tagScanSetExecutionMode(SScanLogicNode* pScan) {
   pScan->onlyMetaCtbIdx = false;
 
+  if (pScan->tableType == TSDB_CHILD_TABLE) {
+    pScan->onlyMetaCtbIdx = false;
+    return TSDB_CODE_SUCCESS;
+  }
+
   if (tagScanNodeListHasTbname(pScan->pScanPseudoCols)) {
     pScan->onlyMetaCtbIdx = false;
     return TSDB_CODE_SUCCESS;

tests/script/tsim/query/tag_scan.sim

@@ -127,4 +127,17 @@ if $data01 != @1aa@ then
   return -1
 endi
 
+sql select tags t,b from ctt11
+print $rows
+print $data00 $data01 
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @1@ then
+  return -1
+endi
+if $data01 != @1aa@ then
+  return -1
+endi
+
 system sh/exec.sh -n dnode1 -s stop -x SIGINT