1.2.0

Added

• Added a bundled Composer Patches workflow for amphp/postgres, including patches.json, patches.lock.json, and release-managed patch artifacts.
• Added regression coverage for duplicate PostgreSQL aliases and Doctrine metadata introspection on the AMPHP-backed DBAL connection.
• Added public getColumnName() support to the driver result layer through the patched upstream result API.

Fixed

• Fixed the transport contract to ext-pgsql and removed ext-pq from the supported driver surface.
• Kept a normal Composer semver constraint for amphp/postgres; the bundled compatibility patch is applied automatically and fails fast if upstream changes become incompatible.
• Preserved positional row access for PostgreSQL results with duplicate aliases so DBAL fetchNumeric() semantics remain intact.
• Preserved ordered column names and associative semantics required by Doctrine's PostgreSQL schema introspection and migrations paths.
• Removed the AMPHP metadata incompatibility behind Doctrine errors such as Undefined array key 10 during PostgreSQL schema operations.

Documentation

• Documented the Composer plugin requirement for the bundled amphp/postgres compatibility patch.
• Documented Doctrine Migrations support, duplicate alias behavior, and the getColumnName() compatibility surface.