vinlee19 opened a new pull request, #53327:
URL: https://github.com/apache/doris/pull/53327
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
This PR introduces comprehensive support for Paimon time travel
functionality.
## Time Travel Queries
1. Query by Snapshot ID (Version-based)
```sql
-- Basic version-based query
SELECT * FROM tbl_time_travel FOR VERSION AS OF 1 ORDER BY order_id;
```
2. Query by Timestamp (Time-based)
```sql
sql-- Query by time string
SELECT * FROM tbl_time_travel FOR TIME AS OF "2024-07-15 10:30:00.000" ORDER
BY order_id;
```
```sql
-- Query by millisecond timestamp
SELECT * FROM tbl_time_travel FOR TIME AS OF 1721030400000 ORDER BY order_id;
```
3. Query by Tag Name
```sql
-- Query by tag name
SELECT * FROM tbl_time_travel FOR VERSION AS OF 't_1' ORDER BY order_id;
```
## Branch Reading Queries
```sql
-- Basic branch query
SELECT * FROM tbl_time_travel@branch(b1) ORDER BY order_id;
```
```sql
-- Count with map format
SELECT * FROM tbl_time_travel@branch("name"="b1");
```
## Tag Reading Queries
```sql
-- Basic tag query
SELECT * FROM tbl_time_travel@tag(t_1) ORDER BY order_id;
```
```sql
-- Basic tag query with map format
SELECT * FROM tbl_time_travel@tag("name"="t_1") ORDER BY order_id;
```
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [x] Regression test
- [ ] Unit Test
- [x] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [x] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] No.
- [x] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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