fix: some problems of parser and planner

source/libs/parser/src/parTranslater.c

@@ -492,7 +492,7 @@ static int32_t parseTimeFromValueNode(SValueNode* pVal) {
   } else if (TSDB_DATA_TYPE_BOOL == pVal->node.resType.type) {
     pVal->datum.i = pVal->datum.b;
     return TSDB_CODE_SUCCESS;
-  } else if (IS_VAR_DATA_TYPE(pVal->node.resType.type)) {
+  } else if (IS_VAR_DATA_TYPE(pVal->node.resType.type) || TSDB_DATA_TYPE_TIMESTAMP == pVal->node.resType.type) {
     if (TSDB_CODE_SUCCESS == taosParseTime(pVal->literal, &pVal->datum.i, pVal->node.resType.bytes,
                                            pVal->node.resType.precision, tsDaylight)) {
       return TSDB_CODE_SUCCESS;

source/libs/parser/test/parSelectTest.cpp

@@ -187,7 +187,7 @@ TEST_F(ParserSelectTest, semanticError) {
   run("SELECT c2 FROM t1 tt1, t1 tt2 WHERE tt1.c1 = tt2.c1", TSDB_CODE_PAR_AMBIGUOUS_COLUMN, PARSER_STAGE_TRANSLATE);
 
   // TSDB_CODE_PAR_WRONG_VALUE_TYPE
-  run("SELECT timestamp '2010' FROM t1", TSDB_CODE_PAR_WRONG_VALUE_TYPE, PARSER_STAGE_TRANSLATE);
+  run("SELECT timestamp '2010a' FROM t1", TSDB_CODE_PAR_WRONG_VALUE_TYPE, PARSER_STAGE_TRANSLATE);
 
   // TSDB_CODE_PAR_ILLEGAL_USE_AGG_FUNCTION
   run("SELECT c2 FROM t1 tt1 join t1 tt2 on COUNT(*) > 0", TSDB_CODE_PAR_ILLEGAL_USE_AGG_FUNCTION,