Merge pull request #20844 from taosdata/feat/TS-2815

feat(query): INTERP support boolean type

source/libs/executor/inc/tfill.h

@@ -30,6 +30,7 @@ extern "C" {
 struct SSDataBlock;
 
 typedef struct SFillColInfo {
+  int32_t    numOfFillExpr;
   SExprInfo* pExpr;
   bool       notFillCol;  // denote if this column needs fill operation
   SVariant   fillVal;

source/libs/executor/src/tfill.c

@@ -44,7 +44,7 @@ static void setNotFillColumn(SFillInfo* pFillInfo, SColumnInfoData* pDstColInfo,
   } else {
     p = FILL_IS_ASC_FILL(pFillInfo) ? &pFillInfo->prev : &pFillInfo->next;
   }
-  
+
   SGroupKeys* pKey = taosArrayGet(p->pRowVal, colIdx);
   doSetVal(pDstColInfo, rowIndex, pKey);
 }
@@ -578,7 +578,12 @@ int32_t taosGetLinearInterpolationVal(SPoint* point, int32_t outputType, SPoint*
   GET_TYPED_DATA(v1, double, inputType, point1->val);
   GET_TYPED_DATA(v2, double, inputType, point2->val);
 
-  double r = DO_INTERPOLATION(v1, v2, point1->key, point2->key, point->key);
+  double r = 0;
+  if (!IS_BOOLEAN_TYPE(inputType)) {
+    r = DO_INTERPOLATION(v1, v2, point1->key, point2->key, point->key);
+  } else {
+    r = (v1 < 1 || v2 < 1) ? 0 : 1;
+  }
   SET_TYPED_DATA(point->val, outputType, r);
 
   return TSDB_CODE_SUCCESS;
@@ -630,6 +635,7 @@ SFillColInfo* createFillColInfo(SExprInfo* pExpr, int32_t numOfFillExpr, SExprIn
       nodesValueNodeToVariant(pv, &pFillCol[i].fillVal);
     }
   }
+  pFillCol->numOfFillExpr = numOfFillExpr;
 
   for (int32_t i = 0; i < numOfNoFillExpr; ++i) {
     SExprInfo* pExprInfo = &pNotFillExpr[i];

source/libs/executor/src/timesliceoperator.c

@@ -156,6 +156,16 @@ static FORCE_INLINE int32_t timeSliceEnsureBlockCapacity(STimeSliceOperatorInfo*
   return TSDB_CODE_SUCCESS;
 }
 
+static bool isIrowtsPseudoColumn(SExprInfo* pExprInfo) {
+  char *name = pExprInfo->pExpr->_function.functionName;
+  return (IS_TIMESTAMP_TYPE(pExprInfo->base.resSchema.type) && strcasecmp(name, "_irowts") == 0);
+}
+
+static bool isIsfilledPseudoColumn(SExprInfo* pExprInfo) {
+  char *name = pExprInfo->pExpr->_function.functionName;
+  return (IS_BOOLEAN_TYPE(pExprInfo->base.resSchema.type) && strcasecmp(name, "_isfilled") == 0);
+}
+
 static bool genInterpolationResult(STimeSliceOperatorInfo* pSliceInfo, SExprSupp* pExprSup, SSDataBlock* pResBlock,
                                    bool beforeTs) {
   int32_t rows = pResBlock->info.rows;
@@ -170,10 +180,10 @@ static bool genInterpolationResult(STimeSliceOperatorInfo* pSliceInfo, SExprSupp
     int32_t          dstSlot = pExprInfo->base.resSchema.slotId;
     SColumnInfoData* pDst = taosArrayGet(pResBlock->pDataBlock, dstSlot);
 
-    if (IS_TIMESTAMP_TYPE(pExprInfo->base.resSchema.type)) {
+    if (isIrowtsPseudoColumn(pExprInfo)) {
       colDataSetVal(pDst, rows, (char*)&pSliceInfo->current, false);
       continue;
-    } else if (IS_BOOLEAN_TYPE(pExprInfo->base.resSchema.type)) {
+    } else if (isIsfilledPseudoColumn(pExprInfo)) {
       bool isFilled = true;
       colDataAppend(pDst, pResBlock->info.rows, (char*)&isFilled, false);
       continue;
@@ -203,6 +213,14 @@ static bool genInterpolationResult(STimeSliceOperatorInfo* pSliceInfo, SExprSupp
           int64_t v = 0;
           GET_TYPED_DATA(v, int64_t, pVar->nType, &pVar->i);
           colDataSetVal(pDst, rows, (char*)&v, false);
+        } else if (IS_BOOLEAN_TYPE(pDst->info.type)) {
+          bool v = false;
+          if (!IS_VAR_DATA_TYPE(pVar->nType)) {
+            GET_TYPED_DATA(v, bool, pVar->nType, &pVar->i);
+          } else {
+            v = taosStr2Int8(varDataVal(pVar->pz), NULL, 10);
+          }
+          colDataSetVal(pDst, rows, (char*)&v, false);
         }
         break;
       }
@@ -288,9 +306,9 @@ static void addCurrentRowToResult(STimeSliceOperatorInfo* pSliceInfo, SExprSupp*
     int32_t          dstSlot = pExprInfo->base.resSchema.slotId;
     SColumnInfoData* pDst = taosArrayGet(pResBlock->pDataBlock, dstSlot);
 
-    if (IS_TIMESTAMP_TYPE(pExprInfo->base.resSchema.type)) {
+    if (isIrowtsPseudoColumn(pExprInfo)) {
       colDataSetVal(pDst, pResBlock->info.rows, (char*)&pSliceInfo->current, false);
-    } else if (IS_BOOLEAN_TYPE(pExprInfo->base.resSchema.type)) {
+    } else if (isIsfilledPseudoColumn(pExprInfo)) {
       bool isFilled = false;
       colDataSetVal(pDst, pResBlock->info.rows, (char*)&isFilled, false);
     } else {
@@ -643,6 +661,9 @@ void destroyTimeSliceOperatorInfo(void* param) {
   taosArrayDestroy(pInfo->pLinearInfo);
   cleanupExprSupp(&pInfo->scalarSup);
 
+  for (int32_t i = 0; i < pInfo->pFillColInfo->numOfFillExpr; ++i) {
+    taosVariantDestroy(&pInfo->pFillColInfo[i].fillVal);
+  }
   taosMemoryFree(pInfo->pFillColInfo);
   taosMemoryFreeClear(param);
 }

source/libs/function/src/builtins.c

@@ -1575,7 +1575,7 @@ static int32_t translateInterp(SFunctionNode* pFunc, char* pErrBuf, int32_t len)
 
   uint8_t nodeType = nodeType(nodesListGetNode(pFunc->pParameterList, 0));
   uint8_t paraType = ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 0))->resType.type;
-  if (!IS_NUMERIC_TYPE(paraType) || QUERY_NODE_VALUE == nodeType) {
+  if ((!IS_NUMERIC_TYPE(paraType) && !IS_BOOLEAN_TYPE(paraType))|| QUERY_NODE_VALUE == nodeType) {
     return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
   }
 

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

@@ -19,6 +19,7 @@ class TDTestCase:
         dbname = "db"
         tbname = "tb"
         tbname1 = "tb1"
+        tbname2 = "tb2"
         stbname = "stb"
         ctbname1 = "ctb1"
         ctbname2 = "ctb2"
@@ -1948,6 +1949,7 @@ class TDTestCase:
         tdSql.checkData(59, 1, 60)
         tdSql.checkData(60, 1, 60)   #
 
+
         tdLog.printNoPrefix("==========step11:test multi-interp cases")
         tdSql.query(f"select interp(c0),interp(c1),interp(c2),interp(c3) from {dbname}.{tbname} range('2020-02-09 00:00:05', '2020-02-13 00:00:05') every(1d) fill(null)")
         tdSql.checkRows(5)
@@ -2002,7 +2004,362 @@ class TDTestCase:
         for i in range (tdSql.queryCols):
             tdSql.checkData(0, i, 13)
 
-        tdLog.printNoPrefix("==========step12:test error cases")
+        tdLog.printNoPrefix("==========step12:test interp with boolean type")
+        tdSql.execute(
+            f'''create table if not exists {dbname}.{tbname2}
+            (ts timestamp, c0 bool)
+            '''
+        )
+
+
+        tdSql.execute(f"insert into {dbname}.{tbname2} values ('2020-02-02 00:00:01', false)")
+        tdSql.execute(f"insert into {dbname}.{tbname2} values ('2020-02-02 00:00:03', true)")
+        tdSql.execute(f"insert into {dbname}.{tbname2} values ('2020-02-02 00:00:05', false)")
+        tdSql.execute(f"insert into {dbname}.{tbname2} values ('2020-02-02 00:00:07', true)")
+        tdSql.execute(f"insert into {dbname}.{tbname2} values ('2020-02-02 00:00:09', true)")
+        tdSql.execute(f"insert into {dbname}.{tbname2} values ('2020-02-02 00:00:11', false)")
+        tdSql.execute(f"insert into {dbname}.{tbname2} values ('2020-02-02 00:00:13', false)")
+        tdSql.execute(f"insert into {dbname}.{tbname2} values ('2020-02-02 00:00:15', NULL)")
+        tdSql.execute(f"insert into {dbname}.{tbname2} values ('2020-02-02 00:00:17', NULL)")
+
+        # test fill null
+        tdSql.query(f"select _irowts,_isfilled,interp(c0) from {dbname}.{tbname2} range('2020-02-02 00:00:00', '2020-02-02 00:00:18') every(1s) fill(NULL)")
+        tdSql.checkRows(19)
+        tdSql.checkCols(3)
+
+        tdSql.checkData(0, 0, '2020-02-02 00:00:00.000')
+
+        tdSql.checkData(0, 2, None)
+        tdSql.checkData(1, 2, False)
+        tdSql.checkData(2, 2, None)
+        tdSql.checkData(3, 2, True)
+        tdSql.checkData(4, 2, None)
+        tdSql.checkData(5, 2, False)
+        tdSql.checkData(6, 2, None)
+        tdSql.checkData(7, 2, True)
+        tdSql.checkData(8, 2, None)
+        tdSql.checkData(9, 2, True)
+        tdSql.checkData(10, 2, None)
+        tdSql.checkData(11, 2, False)
+        tdSql.checkData(12, 2, None)
+        tdSql.checkData(13, 2, False)
+        tdSql.checkData(14, 2, None)
+        tdSql.checkData(15, 2, None)
+        tdSql.checkData(16, 2, None)
+        tdSql.checkData(17, 2, None)
+        tdSql.checkData(18, 2, None)
+
+        tdSql.checkData(18, 0, '2020-02-02 00:00:18.000')
+
+        # test fill prev
+        tdSql.query(f"select _irowts,_isfilled,interp(c0) from {dbname}.{tbname2} range('2020-02-02 00:00:00', '2020-02-02 00:00:18') every(1s) fill(prev)")
+        tdSql.checkRows(18)
+        tdSql.checkCols(3)
+
+        tdSql.checkData(0, 0, '2020-02-02 00:00:01.000')
+
+        tdSql.checkData(0, 2, False)
+        tdSql.checkData(1, 2, False)
+        tdSql.checkData(2, 2, True)
+        tdSql.checkData(3, 2, True)
+        tdSql.checkData(4, 2, False)
+        tdSql.checkData(5, 2, False)
+        tdSql.checkData(6, 2, True)
+        tdSql.checkData(7, 2, True)
+        tdSql.checkData(8, 2, True)
+        tdSql.checkData(9, 2, True)
+        tdSql.checkData(10, 2, False)
+        tdSql.checkData(11, 2, False)
+        tdSql.checkData(12, 2, False)
+        tdSql.checkData(13, 2, False)
+        tdSql.checkData(14, 2, None)
+        tdSql.checkData(15, 2, None)
+        tdSql.checkData(16, 2, None)
+        tdSql.checkData(17, 2, None)
+
+        tdSql.checkData(17, 0, '2020-02-02 00:00:18.000')
+
+        # test fill next
+        tdSql.query(f"select _irowts,_isfilled,interp(c0) from {dbname}.{tbname2} range('2020-02-02 00:00:00', '2020-02-02 00:00:18') every(1s) fill(next)")
+        tdSql.checkRows(18)
+        tdSql.checkCols(3)
+
+        tdSql.checkData(0, 0, '2020-02-02 00:00:00.000')
+
+        tdSql.checkData(0, 2, False)
+        tdSql.checkData(1, 2, False)
+        tdSql.checkData(2, 2, True)
+        tdSql.checkData(3, 2, True)
+        tdSql.checkData(4, 2, False)
+        tdSql.checkData(5, 2, False)
+        tdSql.checkData(6, 2, True)
+        tdSql.checkData(7, 2, True)
+        tdSql.checkData(8, 2, True)
+        tdSql.checkData(9, 2, True)
+        tdSql.checkData(10, 2, False)
+        tdSql.checkData(11, 2, False)
+        tdSql.checkData(12, 2, False)
+        tdSql.checkData(13, 2, False)
+        tdSql.checkData(14, 2, None)
+        tdSql.checkData(15, 2, None)
+        tdSql.checkData(16, 2, None)
+        tdSql.checkData(17, 2, None)
+
+        tdSql.checkData(17, 0, '2020-02-02 00:00:17.000')
+
+        # test fill value
+        tdSql.query(f"select _irowts,_isfilled,interp(c0) from {dbname}.{tbname2} range('2020-02-02 00:00:00', '2020-02-02 00:00:18') every(1s) fill(value, 0)")
+        tdSql.checkRows(19)
+        tdSql.checkCols(3)
+
+        tdSql.checkData(0, 0, '2020-02-02 00:00:00.000')
+
+        tdSql.checkData(0, 2, False)
+        tdSql.checkData(1, 2, False)
+        tdSql.checkData(2, 2, False)
+        tdSql.checkData(3, 2, True)
+        tdSql.checkData(4, 2, False)
+        tdSql.checkData(5, 2, False)
+        tdSql.checkData(6, 2, False)
+        tdSql.checkData(7, 2, True)
+        tdSql.checkData(8, 2, False)
+        tdSql.checkData(9, 2, True)
+        tdSql.checkData(10, 2, False)
+        tdSql.checkData(11, 2, False)
+        tdSql.checkData(12, 2, False)
+        tdSql.checkData(13, 2, False)
+        tdSql.checkData(14, 2, False)
+        tdSql.checkData(15, 2, None)
+        tdSql.checkData(16, 2, False)
+        tdSql.checkData(17, 2, None)
+        tdSql.checkData(18, 2, False)
+
+        tdSql.checkData(18, 0, '2020-02-02 00:00:18.000')
+
+        tdSql.query(f"select _irowts,_isfilled,interp(c0) from {dbname}.{tbname2} range('2020-02-02 00:00:00', '2020-02-02 00:00:18') every(1s) fill(value, 1234)")
+        tdSql.checkRows(19)
+        tdSql.checkCols(3)
+
+        tdSql.checkData(0, 0, '2020-02-02 00:00:00.000')
+
+        tdSql.checkData(0, 2, True)
+        tdSql.checkData(1, 2, False)
+        tdSql.checkData(2, 2, True)
+        tdSql.checkData(3, 2, True)
+        tdSql.checkData(4, 2, True)
+        tdSql.checkData(5, 2, False)
+        tdSql.checkData(6, 2, True)
+        tdSql.checkData(7, 2, True)
+        tdSql.checkData(8, 2, True)
+        tdSql.checkData(9, 2, True)
+        tdSql.checkData(10, 2, True)
+        tdSql.checkData(11, 2, False)
+        tdSql.checkData(12, 2, True)
+        tdSql.checkData(13, 2, False)
+        tdSql.checkData(14, 2, True)
+        tdSql.checkData(15, 2, None)
+        tdSql.checkData(16, 2, True)
+        tdSql.checkData(17, 2, None)
+        tdSql.checkData(18, 2, True)
+
+        tdSql.checkData(18, 0, '2020-02-02 00:00:18.000')
+
+        tdSql.query(f"select _irowts,_isfilled,interp(c0) from {dbname}.{tbname2} range('2020-02-02 00:00:00', '2020-02-02 00:00:18') every(1s) fill(value, false)")
+        tdSql.checkRows(19)
+        tdSql.checkCols(3)
+
+        tdSql.checkData(0, 0, '2020-02-02 00:00:00.000')
+
+        tdSql.checkData(0, 2, False)
+        tdSql.checkData(1, 2, False)
+        tdSql.checkData(2, 2, False)
+        tdSql.checkData(3, 2, True)
+        tdSql.checkData(4, 2, False)
+        tdSql.checkData(5, 2, False)
+        tdSql.checkData(6, 2, False)
+        tdSql.checkData(7, 2, True)
+        tdSql.checkData(8, 2, False)
+        tdSql.checkData(9, 2, True)
+        tdSql.checkData(10, 2, False)
+        tdSql.checkData(11, 2, False)
+        tdSql.checkData(12, 2, False)
+        tdSql.checkData(13, 2, False)
+        tdSql.checkData(14, 2, False)
+        tdSql.checkData(15, 2, None)
+        tdSql.checkData(16, 2, False)
+        tdSql.checkData(17, 2, None)
+        tdSql.checkData(18, 2, False)
+
+        tdSql.checkData(18, 0, '2020-02-02 00:00:18.000')
+
+        tdSql.query(f"select _irowts,_isfilled,interp(c0) from {dbname}.{tbname2} range('2020-02-02 00:00:00', '2020-02-02 00:00:18') every(1s) fill(value, true)")
+        tdSql.checkRows(19)
+        tdSql.checkCols(3)
+
+        tdSql.checkData(0, 0, '2020-02-02 00:00:00.000')
+
+        tdSql.checkData(0, 2, True)
+        tdSql.checkData(1, 2, False)
+        tdSql.checkData(2, 2, True)
+        tdSql.checkData(3, 2, True)
+        tdSql.checkData(4, 2, True)
+        tdSql.checkData(5, 2, False)
+        tdSql.checkData(6, 2, True)
+        tdSql.checkData(7, 2, True)
+        tdSql.checkData(8, 2, True)
+        tdSql.checkData(9, 2, True)
+        tdSql.checkData(10, 2, True)
+        tdSql.checkData(11, 2, False)
+        tdSql.checkData(12, 2, True)
+        tdSql.checkData(13, 2, False)
+        tdSql.checkData(14, 2, True)
+        tdSql.checkData(15, 2, None)
+        tdSql.checkData(16, 2, True)
+        tdSql.checkData(17, 2, None)
+        tdSql.checkData(18, 2, True)
+
+        tdSql.checkData(18, 0, '2020-02-02 00:00:18.000')
+
+        tdSql.query(f"select _irowts,_isfilled,interp(c0) from {dbname}.{tbname2} range('2020-02-02 00:00:00', '2020-02-02 00:00:18') every(1s) fill(value, '0')")
+        tdSql.checkRows(19)
+        tdSql.checkCols(3)
+
+        tdSql.checkData(0, 0, '2020-02-02 00:00:00.000')
+
+        tdSql.checkData(0, 2, False)
+        tdSql.checkData(1, 2, False)
+        tdSql.checkData(2, 2, False)
+        tdSql.checkData(3, 2, True)
+        tdSql.checkData(4, 2, False)
+        tdSql.checkData(5, 2, False)
+        tdSql.checkData(6, 2, False)
+        tdSql.checkData(7, 2, True)
+        tdSql.checkData(8, 2, False)
+        tdSql.checkData(9, 2, True)
+        tdSql.checkData(10, 2, False)
+        tdSql.checkData(11, 2, False)
+        tdSql.checkData(12, 2, False)
+        tdSql.checkData(13, 2, False)
+        tdSql.checkData(14, 2, False)
+        tdSql.checkData(15, 2, None)
+        tdSql.checkData(16, 2, False)
+        tdSql.checkData(17, 2, None)
+        tdSql.checkData(18, 2, False)
+
+        tdSql.checkData(18, 0, '2020-02-02 00:00:18.000')
+
+        tdSql.query(f"select _irowts,_isfilled,interp(c0) from {dbname}.{tbname2} range('2020-02-02 00:00:00', '2020-02-02 00:00:18') every(1s) fill(value, '123')")
+        tdSql.checkRows(19)
+        tdSql.checkCols(3)
+
+        tdSql.checkData(0, 0, '2020-02-02 00:00:00.000')
+
+        tdSql.checkData(0, 2, True)
+        tdSql.checkData(1, 2, False)
+        tdSql.checkData(2, 2, True)
+        tdSql.checkData(3, 2, True)
+        tdSql.checkData(4, 2, True)
+        tdSql.checkData(5, 2, False)
+        tdSql.checkData(6, 2, True)
+        tdSql.checkData(7, 2, True)
+        tdSql.checkData(8, 2, True)
+        tdSql.checkData(9, 2, True)
+        tdSql.checkData(10, 2, True)
+        tdSql.checkData(11, 2, False)
+        tdSql.checkData(12, 2, True)
+        tdSql.checkData(13, 2, False)
+        tdSql.checkData(14, 2, True)
+        tdSql.checkData(15, 2, None)
+        tdSql.checkData(16, 2, True)
+        tdSql.checkData(17, 2, None)
+        tdSql.checkData(18, 2, True)
+
+        tdSql.checkData(18, 0, '2020-02-02 00:00:18.000')
+
+        tdSql.query(f"select _irowts,_isfilled,interp(c0) from {dbname}.{tbname2} range('2020-02-02 00:00:00', '2020-02-02 00:00:18') every(1s) fill(value, 'abc')")
+        tdSql.checkRows(19)
+        tdSql.checkCols(3)
+
+        tdSql.checkData(0, 0, '2020-02-02 00:00:00.000')
+
+        tdSql.checkData(0, 2, False)
+        tdSql.checkData(1, 2, False)
+        tdSql.checkData(2, 2, False)
+        tdSql.checkData(3, 2, True)
+        tdSql.checkData(4, 2, False)
+        tdSql.checkData(5, 2, False)
+        tdSql.checkData(6, 2, False)
+        tdSql.checkData(7, 2, True)
+        tdSql.checkData(8, 2, False)
+        tdSql.checkData(9, 2, True)
+        tdSql.checkData(10, 2, False)
+        tdSql.checkData(11, 2, False)
+        tdSql.checkData(12, 2, False)
+        tdSql.checkData(13, 2, False)
+        tdSql.checkData(14, 2, False)
+        tdSql.checkData(15, 2, None)
+        tdSql.checkData(16, 2, False)
+        tdSql.checkData(17, 2, None)
+        tdSql.checkData(18, 2, False)
+
+        tdSql.checkData(18, 0, '2020-02-02 00:00:18.000')
+
+        tdSql.query(f"select _irowts,_isfilled,interp(c0) from {dbname}.{tbname2} range('2020-02-02 00:00:00', '2020-02-02 00:00:18') every(1s) fill(value, NULL)")
+        tdSql.checkRows(19)
+        tdSql.checkCols(3)
+
+        tdSql.checkData(0, 0, '2020-02-02 00:00:00.000')
+
+        tdSql.checkData(0, 2, False)
+        tdSql.checkData(1, 2, False)
+        tdSql.checkData(2, 2, False)
+        tdSql.checkData(3, 2, True)
+        tdSql.checkData(4, 2, False)
+        tdSql.checkData(5, 2, False)
+        tdSql.checkData(6, 2, False)
+        tdSql.checkData(7, 2, True)
+        tdSql.checkData(8, 2, False)
+        tdSql.checkData(9, 2, True)
+        tdSql.checkData(10, 2, False)
+        tdSql.checkData(11, 2, False)
+        tdSql.checkData(12, 2, False)
+        tdSql.checkData(13, 2, False)
+        tdSql.checkData(14, 2, False)
+        tdSql.checkData(15, 2, None)
+        tdSql.checkData(16, 2, False)
+        tdSql.checkData(17, 2, None)
+        tdSql.checkData(18, 2, False)
+
+        tdSql.checkData(18, 0, '2020-02-02 00:00:18.000')
+
+        # test fill linear
+        tdSql.query(f"select _irowts,_isfilled,interp(c0) from {dbname}.{tbname2} range('2020-02-02 00:00:00', '2020-02-02 00:00:18') every(1s) fill(linear)")
+        tdSql.checkRows(17)
+        tdSql.checkCols(3)
+
+        tdSql.checkData(0, 0, '2020-02-02 00:00:01.000')
+
+        tdSql.checkData(0, 2, False)
+        tdSql.checkData(1, 2, False)
+        tdSql.checkData(2, 2, True)
+        tdSql.checkData(3, 2, False)
+        tdSql.checkData(4, 2, False)
+        tdSql.checkData(5, 2, False)
+        tdSql.checkData(6, 2, True)
+        tdSql.checkData(7, 2, True)
+        tdSql.checkData(8, 2, True)
+        tdSql.checkData(9, 2, False)
+        tdSql.checkData(10, 2, False)
+        tdSql.checkData(11, 2, False)
+        tdSql.checkData(12, 2, False)
+        tdSql.checkData(13, 2, None)
+        tdSql.checkData(14, 2, None)
+        tdSql.checkData(15, 2, None)
+        tdSql.checkData(16, 2, None)
+
+        tdSql.checkData(16, 0, '2020-02-02 00:00:17.000')
+
+        tdLog.printNoPrefix("==========step13:test error cases")
 
         tdSql.error(f"select interp(c0) from {dbname}.{tbname}")
         tdSql.error(f"select interp(c0) from {dbname}.{tbname} range('2020-02-10 00:00:05', '2020-02-15 00:00:05')")
@@ -2013,7 +2370,7 @@ class TDTestCase:
 
         # input can only be numerical types
         tdSql.error(f"select interp(ts) 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(c6) 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(c6) 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(c7) 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(c8) from {dbname}.{tbname} range('2020-02-10 00:00:05', '2020-02-15 00:00:05') every(1d) fill(null)")