## Description

<!-- Briefly describe the changes in this PR and the motivation behind them. -->

## Related Issues

<!-- Link any related issues: Fixes #123, Closes #456, Related to #789 -->

## Type of Change

- [ ] Bug fix
- [ ] New feature
- [ ] Refactor / code cleanup
- [ ] Documentation update
- [ ] Test addition or update
- [ ] Build / CI change

## Pre-Merge Checklist

### Build

- [ ] `make` completes without errors or warnings
- [ ] `make install` completes successfully

### Tests

- [ ] If this PR introduces no new behavior: existing regression tests (`make installcheck`) and TAP tests (`test/t/`) pass with no failures
- [ ] If this PR introduces new behavior: test cases covering it were added to `test/sql/` and/or `test/t/`
- [ ] If this PR adds a standalone unit-test module under `test/modules/`: it builds and passes (`make -C test/modules/<module> installcheck`)

### Documentation

- [ ] Relevant docs under `docs/` updated if architecture or usage changed

## Testing Notes

<!-- Describe any manual testing performed, datasets used, or performance measurements taken. -->