diff --git a/contrib/dolphin/expected/builtin_funcs/b_compatibility_time_funcs3.out b/contrib/dolphin/expected/builtin_funcs/b_compatibility_time_funcs3.out
index 5c9231c91dc99f35bd1466ed11f8e44a9308d99f..43959a97af6c0e625079d93443cd8895e02db623 100644
--- a/contrib/dolphin/expected/builtin_funcs/b_compatibility_time_funcs3.out
+++ b/contrib/dolphin/expected/builtin_funcs/b_compatibility_time_funcs3.out
@@ -2554,6 +2554,21 @@ NOTICE:  RESULT COL :4714-11-23 08:00:00-08t
 NOTICE:  RESULT COL :4714-11-24 00:00:00t
 NOTICE:  RESULT COL :11:11:11+08t
 NOTICE:  RESULT COL :11:11:11t
+CREATE TABLE t_timestamp(id int, start_time timestamp(3) without time zone, endtime timestamp(3) with time zone);
+insert into t_timestamp values (1, '2024-10-10 10:10:10.100', '2024-10-10 10:10:10.100');
+select id from t_timestamp where start_time >= '2024-10-10 10:10:10.100'::varchar and start_time <= '2024-10-10 10:10:10.100'::varchar;
+ id 
+----
+  1
+(1 row)
+
+select id from t_timestamp where endtime >= '2024-10-10 10:10:10.100'::varchar and endtime <= '2024-10-10 10:10:10.100'::varchar;
+ id 
+----
+  1
+(1 row)
+
+drop table t_timestamp;
 drop table test_time;
 drop table t_time;
 drop schema b_time_funcs3 cascade;
diff --git a/contrib/dolphin/plugin_utils/adt/timestamp.cpp b/contrib/dolphin/plugin_utils/adt/timestamp.cpp
index 69ecf04eb6bd133e6ff00dfa6800cd8ddeaf7c73..734aa1872af0ddb5f9da1be7766914a9748aace4 100644
--- a/contrib/dolphin/plugin_utils/adt/timestamp.cpp
+++ b/contrib/dolphin/plugin_utils/adt/timestamp.cpp
@@ -1290,7 +1290,7 @@ Datum convert_text_datetime(PG_FUNCTION_ARGS)
     char* str = NULL;
     TimeErrorType time_error_type = TIME_CORRECT;
     str = DatumGetCString(DirectFunctionCall1(textout, textValue));
-    Datum result = timestamp_internal(fcinfo, str, TIME_IN, &time_error_type);
+    Datum result = timestamp_internal(fcinfo, str, TEXT_TIME_EXPLICIT, &time_error_type);
     pfree_ext(str);
     PG_RETURN_TIMESTAMP(result);
 }
@@ -1301,7 +1301,7 @@ Datum convert_text_timestamptz(PG_FUNCTION_ARGS)
     char* str = NULL;
     TimeErrorType time_error_type = TIME_CORRECT;
     str = DatumGetCString(DirectFunctionCall1(textout, textValue));
-    Datum result = timestamptz_internal(fcinfo, str, TIME_IN, &time_error_type);
+    Datum result = timestamptz_internal(fcinfo, str, TEXT_TIME_EXPLICIT, &time_error_type);
     pfree_ext(str);
     PG_RETURN_TIMESTAMPTZ(result);
 }
diff --git a/contrib/dolphin/sql/builtin_funcs/b_compatibility_time_funcs3.sql b/contrib/dolphin/sql/builtin_funcs/b_compatibility_time_funcs3.sql
index 5d65e8baf4e558bd7ee2523f51ce8617b959cba3..29b3e08c3583a9c02c77390f0cda64e5815a0481 100644
--- a/contrib/dolphin/sql/builtin_funcs/b_compatibility_time_funcs3.sql
+++ b/contrib/dolphin/sql/builtin_funcs/b_compatibility_time_funcs3.sql
@@ -631,6 +631,11 @@ raise notice 'RESULT COL :%t', d;
 end;
 /
 
+CREATE TABLE t_timestamp(id int, start_time timestamp(3) without time zone, endtime timestamp(3) with time zone);
+insert into t_timestamp values (1, '2024-10-10 10:10:10.100', '2024-10-10 10:10:10.100');
+select id from t_timestamp where start_time >= '2024-10-10 10:10:10.100'::varchar and start_time <= '2024-10-10 10:10:10.100'::varchar;
+select id from t_timestamp where endtime >= '2024-10-10 10:10:10.100'::varchar and endtime <= '2024-10-10 10:10:10.100'::varchar;
+drop table t_timestamp;
 
 drop table test_time;
 drop table t_time;