feat: Add complete PostgreSQL multi-backend support with database adapters#1338

Open

dimitri-yatsenko wants to merge 39 commits intopre/v2.1from

feat/database-adapters

Commits on Jan 17, 2026

feat: Add database adapter interface for multi-backend support (Phase 2)

dimitri-yatsenko
and
claude
committed
feat: Add backend configuration to DatabaseSettings

dimitri-yatsenko
and
claude
committed
feat: Add get_cursor() method to database adapters

dimitri-yatsenko
and
claude
committed
feat: Integrate database adapters into Connection class

dimitri-yatsenko
and
claude
committed
feat: Use database adapters for SQL generation in table.py (Phase 5)
dimitri-yatsenko
committed
feat: Add json_path_expr() method to database adapters (Phase 6 Part 1)
dimitri-yatsenko
committed
feat: Use adapter for WHERE clause generation (Phase 6 Part 2)

dimitri-yatsenko
and
claude
committed
feat: Use adapter for query expression SQL (Phase 6 Part 3)

dimitri-yatsenko
and
claude
committed
feat: Add DDL generation adapter methods (Phase 7 Part 1)

dimitri-yatsenko
and
claude
committed
feat: Thread adapter through declare.py for backend-agnostic DDL (Phase 7 Part 2)
dimitri-yatsenko
committed
feat: Add multi-backend testing infrastructure (Phase 1)
dimitri-yatsenko
committed
docs: Add comprehensive multi-backend testing design
dimitri-yatsenko
committed
fix: Set autocommit=True by default in database adapters
dimitri-yatsenko
committed
fix: Replace hardcoded MySQL syntax with adapter methods
dimitri-yatsenko
committed
fix: Make heading.py backend-agnostic for column and index queries
dimitri-yatsenko
committed
feat: Add backend-agnostic upsert and complete heading.py fixes
dimitri-yatsenko
committed
fix: Complete foreign key and primary key support for PostgreSQL
dimitri-yatsenko
committed
fix: Use table instances instead of classes in len() calls
dimitri-yatsenko
committed
fix: Use backend-agnostic COUNT DISTINCT for multi-column primary keys
dimitri-yatsenko
committed
feat: Add backend-agnostic cascade delete support
dimitri-yatsenko
committed

Commits on Jan 18, 2026