src/dazzle_back/runtime/pg_backend.py

Generated: 2026-03-30T04:38:47.746770+00:00

Commit: 615f1354a103

Language: python

Scope: dazzle_back

Purpose

PostgreSQL database backend for DNR Backend.

Provides the PostgreSQL database backend — the sole runtime backend.

Requires: psycopg[binary]>=3.2

Key Exports

• PgConnectionWrapper
• PostgresBackend
• execute
• open_pool
• close_pool
• connection
• get_persistent_connection
• close
• backend_type
• placeholder
• create_table
• create_all_tables
• table_exists
• get_table_columns
• get_column_info
• get_table_indexes

Dependencies

Imports

• logging
• collections.abc.Iterator
• contextlib.contextmanager
• typing.Any
• psycopg.sql
• dazzle_back.runtime.query_builder.quote_identifier
• dazzle_back.specs.entity.EntitySpec
• dazzle_back.specs.entity.FieldSpec
• dazzle_back.specs.entity.FieldType
• dazzle_back.specs.entity.ScalarType
• json
• datetime.date
• datetime.datetime
• decimal.Decimal
• uuid.UUID
• psycopg.rows.dict_row
• psycopg_pool.ConnectionPool
• dazzle_back.runtime.tenant_isolation.get_current_tenant_schema
• psycopg
• psycopg.rows.dict_row

Event Interactions

None detected.

Invariants and Assumptions

No invariants documented.

Tests

• tests/integration/test_runtime_e2e.py
• tests/integration/test_runtime_pipeline.py
• tests/unit/test_runtime_test_routes.py
• tests/unit/test_runtime_services.py
• tests/unit/test_runtime_mcp_tools.py

Notes

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