fix errors

source/libs/function/src/builtinsimpl.c

@@ -526,7 +526,7 @@ static int32_t getNumOfElems(SqlFunctionCtx* pCtx) {
  * count function does not use the pCtx->interResBuf to keep the intermediate buffer
  */
 int32_t countFunction(SqlFunctionCtx* pCtx) {
-  int32_t numOfElem = getNumOfElems(pCtx);
+  int32_t numOfElem = 0;
 
   SResultRowEntryInfo*  pResInfo = GET_RES_INFO(pCtx);
   SInputColumnInfoData* pInput = &pCtx->input;
@@ -539,6 +539,7 @@ int32_t countFunction(SqlFunctionCtx* pCtx) {
     numOfElem = 1;
     *((int64_t*)buf) = 0;
   } else {
+    numOfElem = getNumOfElems(pCtx);
     *((int64_t*)buf) += numOfElem;
   }
 

tests/script/tsim/parser/lastrow_query.sim

@@ -55,7 +55,7 @@ endi
 
 # regression test case 1
 sql select count(*) from lr_tb1 where ts>'2018-09-18 08:45:00.1' and ts<'2018-09-18 08:45:00.2'
-if $row != 0 then
+if $row != 1 then
   return -1
 endi
 

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

@@ -183,7 +183,7 @@ class TDTestCase:
         tdSql.checkRows(20)
 
         tdSql.query(f"select count(c1) from {dbname}.stb1 where t1> 4  partition by tbname")
-        tdSql.checkRows(16)
+        tdSql.checkRows(15)
 
         # union all
         tdSql.query(f"select count(c1) from {dbname}.stb1 union all select count(c1) from {dbname}.stb1 ")