feat: vector search for builder #270
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- Introduced a custom SQLGlot expression pattern for dialect-specific vector distance functions, allowing for tailored SQL generation based on the database dialect. - Updated vector distance implementations for PostgreSQL, MySQL, Oracle, BigQuery, DuckDB, and Psycopg to support new distance metrics and improve SQL generation. - Refactored tests for vector functions to ensure compatibility with the new implementations and added support for various distance metrics. - Improved error handling and metadata management within vector distance expressions.
…ADBC and asyncpg tests
…extension availability
DuckDB infers decimal literals as DECIMAL type, but VSS functions like array_distance, array_cosine_distance, and array_negative_inner_product require DOUBLE[] arrays. This adds explicit CAST to DOUBLE[] for the vector operand. Also fixes bigquery fixture name from bigquery_driver to bigquery_session.
feat(builder): enhance subquery handling and parameter mapping in SelectClauseMixin feat(vector): update VectorDistance expression to support dynamic array casting
… and Oracle async driver alias fixture
…c_session in vector tests
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Implements a vector search helper in the SQL builder. Generates dialect specific vector searches for Postgres, DuckDB, Oracle, BigQuery, and more.