fix: resolve a segmenation fault issue of taos when alter table... set tag with a number as key

src/client/src/tscSQLParser.c

@@ -3972,10 +3972,6 @@ int32_t doGetColumnIndexByName(SStrToken* pToken, SQueryInfo* pQueryInfo, SColum
   const char* msg0 = "ambiguous column name";
   const char* msg1 = "invalid column name";
 
-  if (pToken->n == 0) {
-    return TSDB_CODE_TSC_INVALID_OPERATION;
-  }
-
   int16_t tsWinColumnIndex;
   if (isTablenameToken(pToken)) {
     pIndex->columnIndex = TSDB_TBNAME_COLUMN_INDEX;
@@ -4061,6 +4057,11 @@ int32_t getTableIndexByName(SStrToken* pToken, SQueryInfo* pQueryInfo, SColumnIn
 }
 
 int32_t getColumnIndexByName(const SStrToken* pToken, SQueryInfo* pQueryInfo, SColumnIndex* pIndex, char* msg) {
+  const char* msg0 = "invalid column name";
+
+  if (pToken->n == 0) {
+    return invalidOperationMsg(msg, msg0);
+  }
   if (pQueryInfo->pTableMetaInfo == NULL || pQueryInfo->numOfTables == 0) {
     return TSDB_CODE_TSC_INVALID_OPERATION;
   }

tests/pytest/table/tagNameCaseSensitive.py

@@ -65,7 +65,7 @@ class TDTestCase:
         tdSql.query("select * from `STB6`")
         tdSql.checkRows(6)
 
-        tdSql.execute("delete from `STB6` where ` ` = 1 and ts = '2022-06-24 11:17:31.000'")
+        tdSql.execute("delete from `STB6` where ` ` = 1 and ts = 1656040651000")
         tdSql.checkAffectedRows(1)
         tdSql.query("select * from `STB6`")
         tdSql.checkRows(5)
@@ -86,4 +86,4 @@ class TDTestCase:
 
 
 tdCases.addWindows(__file__, TDTestCase())
-tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file
+tdCases.addLinux(__file__, TDTestCase())