## Summary
- Add 3 new test files for pgsql driver (39 test functions, ~3800 lines)
- `pgsql_z_unit_feature_soft_time_test.go`: 15 tests — soft delete
(SoftDeleted/Unscoped), auto time fields
(CreatedAt/UpdatedAt/DeletedAt), time format options
- `pgsql_z_unit_feature_with_test.go`: 17 tests — With relation queries
(one-to-one, one-to-many, many-to-many), nested With, WithAll,
conditional With
- `pgsql_z_unit_feature_scanlist_test.go`: 7 tests — ScanList relation
mapping for struct slices
- Add testdata SQL templates for With tests
**PostgreSQL adaptations from MySQL:**
- `AUTO_INCREMENT` → `SERIAL/BIGSERIAL`
- `datetime` → `timestamp`
- MySQL backticks → PostgreSQL double quotes for identifiers
- Timestamp format handling for soft time fields
## Test plan
- [x] Run `go test -v -run "Test_Model_Soft" -count=1` in
`contrib/drivers/pgsql`
- [x] Run `go test -v -run "Test_Model_With" -count=1` in
`contrib/drivers/pgsql`
- [x] Run `go test -v -run "Test_Model_ScanList" -count=1` in
`contrib/drivers/pgsql`
ref #4689
## Summary
- Add `pgsql_z_unit_feature_union_test.go`: 4 tests for Union/UnionAll
on both db and model level
- Add `pgsql_z_unit_feature_model_do_test.go`: 10 tests for DO (Data
Object) pattern - insert, batch insert, update, pointer fields, WHERE,
DAO pattern, and field prefix handling
- Enhance `pgsql_z_unit_raw_test.go`: add `Test_Raw_Where` for subquery
NOT EXISTS and field comparison using `gdb.Raw()`, adapted for PgSQL
double-quote quoting
- Add `testdata/table_with_prefix.sql` for PgSQL-compatible FieldPrefix
test
All tests adapted from MySQL driver test suite with PgSQL-specific
adjustments:
- Nullable table schema for DO partial inserts (PgSQL NOT NULL is
stricter than MySQL)
- Double-quote identifier quoting instead of backticks
- Unquoted table aliases in generated SQL
## Test plan
- [x] All 15 new tests pass locally
- [x] Full pgsql test suite (107 tests) passes with zero regressions
ref #4689
---------
Co-authored-by: John Guo <claymore1986@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
