{"id":30368415,"url":"https://github.com/promeduck/duckex","last_synced_at":"2026-02-12T02:05:32.033Z","repository":{"id":297099846,"uuid":"991908341","full_name":"promeduck/duckex","owner":"promeduck","description":"A DuckDB binding for Elixir via Rust 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2025 Stas Muzhyk \u003csts@abc3.dev\u003e\nSPDX-FileCopyrightText: 2025 Łukasz Niemier \u003c~@hauleth.dev\u003e\n\nSPDX-License-Identifier: Apache-2.0\n--\u003e\n\n# Duckex\n\nA naive DuckDB binding for Elixir via Rust port, primarily for testing DuckLake functionality.\n\n## Installation\n\nAdd `duckex` to your list of dependencies in `mix.exs`:\n\n```elixir\ndef deps do\n  [\n    {:duckex, github: \"http://github.com/promeduck/duckex\"}\n  ]\nend\n```\n\n## Usage\n\nStart the process and execute queries:\n\n```elixir\n# Install extensions\nDuckex.install_extensions([:ducklake, :postgres])\n\n# Start Duckex with Ducklake connection\n{:ok, conn} = Duckex.start_link(\n  attach: [\n    {\"ducklake:postgres:dbname=ducklake_catalog\",\n      as: :my_ducklake,\n      options: [\n        data_path: \"tmp/data_files\"\n      ]\n    }\n  ]\n)\n\n# Create table\nDuckex.query!(conn, \"\"\"\n  CREATE TABLE my_ducklake.my_demo_table (\n    id INTEGER,\n    name TEXT,\n    created_at TIMESTAMP\n  )\n\"\"\")\n\n# Insert data\nDuckex.query!(conn, \"\"\"\nINSERT INTO my_ducklake.my_demo_table (id, name, created_at)\nVALUES (2, 'Bob', CURRENT_TIMESTAMP), (3, 'Charlie', CURRENT_TIMESTAMP)\n\"\"\", [])\n\n# Query data\nDuckex.query!(conn, \"SELECT * FROM my_ducklake.my_demo_table LIMIT 100\", [])\n```\n\n## Result Format\n\nReturns `%Duckex.Result{}` struct:\n\n```elixir\n%Duckex.Result{\n  columns: [\n    [\"id\", \"Int32\"],\n    [\"name\", \"Utf8\"],\n    [\"created_at\", \"Timestamp(Microsecond, None)\"]\n  ],\n  rows: [\n    [2, \"Bob\", ~U[2025-08-06 17:38:38.512000Z]],\n    [3, \"Charlie\", ~U[2025-08-06 17:38:38.512000Z]]\n  ],\n  num_rows: 2\n}\n```\n\n## Error Format\n\nReturns `%Duckex.Error{}` struct on SQL errors:\n\n```elixir\nDuckex.query(conn, \"some unexisting sql\", [])\n{:error,\n %Duckex.Error{\n   message: \"SQL preparation error: Parser Error: syntax error at or near \\\"some\\\"\\n\\nLINE 1: some unexisting sql\\n        ^\",\n   query: %{command: \"prepare\", query: \"some unexisting sql\"}\n }}\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpromeduck%2Fduckex","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fpromeduck%2Fduckex","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpromeduck%2Fduckex/lists"}