[core]tag create time nullable

[eric666666]

Purpose

Linked issue: close #3280

Tests

API and Format

Documentation

[eric666666]

@Zouxxyy @JingsongLi Please have a review.

[eric666666]

Can we just set new DataField(6, "create_time", new TimestampType(false, 3)) to new DataField(6, "create_time", new TimestampType(3)) and return null directly? @JingsongLi Okay, I push a new commit with your thoughts. And it works.

+-------------+-----------+---------+-----------------------+------------+--------+-----------+-------------+
|tag_name     |snapshot_id|schema_id|commit_time            |record_count|branches|create_time|time_retained|
+-------------+-----------+---------+-----------------------+------------+--------+-----------+-------------+
|2024-04-29 15|1          |0        |2024-04-29 16:39:58.639|2531        |[]      |null       |             |
|2024-04-29 18|19         |0        |2024-04-29 16:51:00.805|2542        |[]      |null       |             |
|2024-04-29 21|49         |0        |2024-04-29 17:04:05.326|2556        |[]      |null       |             |
+-------------+-----------+---------+-----------------------+------------+--------+-----------+-------------+

[JingsongLi]

@eric666666 good new!

[eric666666]

@eric666666 good new!

@JingsongLi I forgot check format violations,and I just repaired it, please trigger workflows again.

[JingsongLi]

Please fix TagsTableTest.testTagsTable.

[eric666666]

Please fix TagsTableTest.testTagsTable.

@JingsongLi Okay, next time I will pay attention to running the test class locally first.

[JingsongLi]

+1