Merge pull request #19964 from taosdata/fix/restrict_interp_stable

fix: restrict interp query on stable for now

source/libs/parser/src/parTranslater.c

@@ -1467,6 +1467,15 @@ static int32_t translateInterpFunc(STranslateContext* pCxt, SFunctionNode* pFunc
     return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_NOT_ALLOWED_FUNC);
   }
   SSelectStmt* pSelect = (SSelectStmt*)pCxt->pCurrStmt;
+  SNode*       pTable = pSelect->pFromTable;
+
+  if ((NULL != pTable && (QUERY_NODE_REAL_TABLE != nodeType(pTable) ||
+                         (TSDB_CHILD_TABLE != ((SRealTableNode*)pTable)->pMeta->tableType &&
+                          TSDB_NORMAL_TABLE != ((SRealTableNode*)pTable)->pMeta->tableType)))) {
+    return generateSyntaxErrMsgExt(&pCxt->msgBuf, TSDB_CODE_PAR_ONLY_SUPPORT_SINGLE_TABLE,
+                                   "%s is only supported in single table query", pFunc->functionName);
+  }
+
   if (pSelect->hasAggFuncs || pSelect->hasMultiRowsFunc || pSelect->hasIndefiniteRowsFunc) {
     return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_NOT_ALLOWED_FUNC);
   }

tests/system-test/2-query/interp.py

@@ -1850,15 +1850,16 @@ class TDTestCase:
         tdSql.error(f"select interp('abcd') from {dbname}.{tbname} range('2020-02-10 00:00:05', '2020-02-15 00:00:05') every(1d) fill(null)")
         tdSql.error(f"select interp('中文字符') from {dbname}.{tbname} range('2020-02-10 00:00:05', '2020-02-15 00:00:05') every(1d) fill(null)")
 
+
         tdLog.printNoPrefix("==========step13:stable cases")
 
-        #tdSql.query(f"select interp(c0) from {dbname}.{stbname} range('2020-02-01 00:00:04', '2020-02-01 00:00:16') every(1s) fill(null)")
+        tdSql.error(f"select interp(c0) from {dbname}.{stbname} range('2020-02-01 00:00:04', '2020-02-01 00:00:16') every(1s) fill(null)")
         #tdSql.checkRows(13)
 
         #tdSql.query(f"select interp(c0) from {dbname}.{ctbname1} range('2020-02-01 00:00:04', '2020-02-01 00:00:16') every(1s) fill(null)")
         #tdSql.checkRows(13)
 
-        #tdSql.query(f"select interp(c0) from {dbname}.{stbname} partition by tbname range('2020-02-01 00:00:04', '2020-02-02 00:00:16') every(1s) fill(null)")
+        tdSql.error(f"select interp(c0) from {dbname}.{stbname} partition by tbname range('2020-02-01 00:00:04', '2020-02-02 00:00:16') every(1s) fill(null)")
         #tdSql.checkRows(13)
 
         #tdSql.query(f"select _irowts,interp(c0) from {dbname}.{stbname} partition by tbname range('2020-02-01 00:00:04', '2020-02-02 00:00:16') every(1h) fill(prev)")