xuchenhao opened a new pull request, #63218:
URL: https://github.com/apache/doris/pull/63218
### What problem does this PR solve?
Issue Number: None
Related PR: None
Problem Summary: OLAP `INSERT INTO table SELECT ...` without an explicit
target column list previously required the SELECT output column count to
exactly match the target insert columns. This change allows the SELECT outputs
to bind to the leading target columns and fills omitted trailing columns
through the existing default/null/generated-column handling. It also keeps
sequence-column validation aligned with the implicit target column set.
### Release note
Support OLAP `INSERT INTO table SELECT ...` with fewer SELECT columns than
target insert columns when target column names are omitted, filling trailing
columns with default/null/generated values.
### 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)
- `git diff --cached --check`
- [ ] 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:
- [ ] No.
- [x] Yes. OLAP `INSERT INTO table SELECT ...` without a target column
list can now omit trailing columns when they can be filled by existing
default/null/generated-column logic.
- Does this need documentation?
- [x] No.
- [ ] 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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