fix: ignore NULL tag

source/libs/parser/src/parInsertSql.c

@@ -700,7 +700,8 @@ static int32_t parseBoundTagsClause(SInsertParseContext* pCxt, SVnodeModifyOpStm
 
 static int32_t parseTagValue(SInsertParseContext* pCxt, SVnodeModifyOpStmt* pStmt, const char** ppSql, SSchema* pTagSchema, SToken* pToken,
                              SArray* pTagName, SArray* pTagVals, STag** pTag) {
-  if (!isNullValue(pTagSchema->type, pToken)) {
+  bool isNull = isNullValue(pTagSchema->type, pToken);
+  if (!isNull) {
     taosArrayPush(pTagName, pTagSchema->name);
   }
 
@@ -709,13 +710,15 @@ static int32_t parseTagValue(SInsertParseContext* pCxt, SVnodeModifyOpStmt* pStm
       return buildSyntaxErrMsg(&pCxt->msg, "json string too long than 4095", pToken->z);
     }
 
-    if (isNullValue(pTagSchema->type, pToken)) {
+    if (isNull) {
       return tTagNew(pTagVals, 1, true, pTag);
     } else {
       return parseJsontoTagData(pToken->z, pTagVals, pTag, &pCxt->msg);
     }
   }
 
+  if (isNull) return 0;
+
   STagVal val = {0};
   int32_t code =
       parseTagToken(ppSql, pToken, pTagSchema, pStmt->pTableMeta->tableInfo.precision, &val, &pCxt->msg);

tests/script/tsim/parser/columnValue_bigint.sim

@@ -17,6 +17,7 @@ sql create table mt_bigint (ts timestamp, c bigint) tags (tagname bigint)
 
 ## case 00: static create table for test tag values
 sql create table st_bigint_0  using mt_bigint tags (NULL)
+sql show create table st_bigint_0
 sql show tags from  st_bigint_0
 if $data05 != NULL then
   return -1
@@ -173,6 +174,7 @@ endi
 
 ## case 02: dynamic create table for test tag values
 sql insert into st_bigint_16 using mt_bigint tags (NULL)   values (now, NULL)
+sql show create table st_bigint_16
 sql show tags from  st_bigint_16
 if $data05 != NULL then
   return -1

tests/script/tsim/parser/columnValue_bool.sim

@@ -17,6 +17,7 @@ sql create table mt_bool (ts timestamp, c bool) tags (tagname bool)
 
 ## case 00: static create table for test tag values
 sql create table st_bool_0  using mt_bool tags (NULL)
+sql show create table st_bool_0
 sql show tags from st_bool_0
 if $data05 != NULL then
   print ==1== expect: NULL, actually: $data05
@@ -291,6 +292,7 @@ endi
 
 ## case 02: dynamic create table for test tag values
 sql insert into st_bool_16 using mt_bool tags (NULL)   values (now, NULL)
+sql show create table st_bool_16
 sql show tags from st_bool_16
 if $data05 != NULL then
   print ==33== expect: NULL, actually: $data00

tests/script/tsim/parser/columnValue_float.sim

@@ -17,6 +17,7 @@ sql create table mt_float (ts timestamp, c float) tags (tagname float)
 
 ## case 00: static create table for test tag values
 sql create table st_float_0  using mt_float tags (NULL)
+sql show create table st_float_0
 sql show tags from  st_float_0
 if $data05 != NULL then
   return -1
@@ -299,6 +300,7 @@ endi
 
 ## case 02: dynamic create table for test tag values
 sql insert into st_float_16 using mt_float tags (NULL)   values (now, NULL)
+sql show create table st_float_16
 sql show tags from  st_float_16
 if $data05 != NULL then
   return -1

tests/script/tsim/parser/columnValue_int.sim

@@ -17,6 +17,7 @@ sql create table mt_int (ts timestamp, c int) tags (tagname int)
 
 ## case 00: static create table for test tag values
 sql create table st_int_0  using mt_int tags (NULL)
+sql show create table st_int_0
 sql show tags from  st_int_0
 if $data05 != NULL then
   return -1
@@ -27,6 +28,18 @@ if $data05 != NULL then
   return -1
 endi
 
+sql insert into mt_int(tbname,tagname,ts,c) values("st_int_00",NULL,now,1) values("st_int_01", NULL, now,2)
+sql show create table st_int_00
+sql show create table st_int_01
+sql show tags from st_int_00
+if $data05 != NULL then
+  return -1
+endi
+sql show tags from st_int_01
+if $data05 != NULL then
+  return -1
+endi
+
 sql_error create table st_int_2  using mt_int tags ('NULL')
 sql_error create table st_int_3  using mt_int tags ('NULL')
 sql_error create table st_int_4  using mt_int tags ("NULL")
@@ -172,6 +185,7 @@ endi
 
 ## case 02: dynamic create table for test tag values
 sql insert into st_int_16 using mt_int tags (NULL)   values (now, NULL)
+sql show create table st_int_16
 sql show tags from  st_int_16
 if $data05 != NULL then
   return -1

tests/script/tsim/parser/columnValue_smallint.sim

@@ -20,6 +20,7 @@ sql create table mt_smallint (ts timestamp, c smallint) tags (tagname smallint)
 
 ## case 00: static create table for test tag values
 sql create table st_smallint_0  using mt_smallint tags (NULL)
+sql show create table st_smallint_0
 sql show tags from st_smallint_0
 if $data05 != NULL then
   return -1
@@ -175,6 +176,7 @@ endi
 
 ## case 02: dynamic create table for test tag values
 sql insert into st_smallint_16 using mt_smallint tags (NULL)   values (now, NULL)
+sql show create table st_smallint_16
 sql show tags from st_smallint_16
 if $data05 != NULL then
   return -1

tests/script/tsim/parser/columnValue_tinyint.sim

@@ -17,6 +17,7 @@ sql create table mt_tinyint (ts timestamp, c tinyint) tags (tagname tinyint)
 
 ## case 00: static create table for test tag values
 sql create table st_tinyint_0  using mt_tinyint tags (NULL)
+sql show create table st_tinyint_0
 sql show tags from  st_tinyint_0
 if $data05 != NULL then
   print expect NULL, actually: $data05
@@ -173,6 +174,7 @@ endi
 
 ## case 02: dynamic create table for test tag values
 sql insert into st_tinyint_16 using mt_tinyint tags (NULL)   values (now, NULL)
+sql show create table st_tinyint_16
 sql show tags from  st_tinyint_16
 if $data05 != NULL then
   return -1

tests/script/tsim/parser/null_char.sim

@@ -13,6 +13,7 @@ sql use $db
 #### case 0: field NULL, or 'NULL'
 sql create table mt1 (ts timestamp, col1 int, col2 bigint, col3 float, col4 double, col5 binary(8), col6 bool, col7 smallint, col8 tinyint, col9 nchar(8)) tags (tag1 binary(8), tag2 nchar(8), tag3 int, tag4 bigint, tag5 bool, tag6 float)
 sql create table st1 using mt1 tags (NULL, 'NULL', 100, 1000, 'false', 9.123)
+sql show create table st1
 sql insert into st1 values ('2019-01-01 09:00:00.000', 123, -123, 3.0, 4.0, 'binary', true, 1000, 121, 'nchar')
 sql insert into st1 values ('2019-01-01 09:00:01.000', '456', '456', '3.33', '4.444', 'binary', 'true', '1001', '122', 'nchar')
 sql insert into st1 values ('2019-01-01 09:00:02.000', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)
@@ -117,6 +118,7 @@ if $rows != 0 then
 endi
 
 sql create table st3 using mt2 tags (NULL, 'ABC', 103, 'FALSE')
+sql show create table st3
 sql insert into st3 (ts, col1) values(now, 1)
 sql select tag1, tag2, tag3, tag5 from st3
 if $rows != 1 then