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quickjs
Downloads 629this week
GitHub stars 9
Extension repository on GitHub
Extension descriptor (YAML)

DuckDB QuickJS Runtime Extension

Maintainer(s): lmangani

Installing and Loading 

INSTALL quickjs FROM community;
LOAD quickjs;

Example 

-- Quack JS with QuickJS
-- Scalar
D SELECT quickjs('2+2');
┌────────────────┐
│ quickjs('2+2') │
│    varchar     │
├────────────────┤
│ 4              │
└────────────────┘

-- Scalar Eval
D SELECT quickjs_eval('(a, b) => a + b', 5, 3);
┌───────────────────────────────────────┐
│ quickjs_eval('(a, b) => a + b', 5, 3) │
│                 json                  │
├───────────────────────────────────────┤
│ 8                                     │
└───────────────────────────────────────┘

-- Table Eval
D SELECT * FROM quickjs('parsed_arg0.map(x => x * arg1)', '[1, 2, 3, 4, 5]', 3);
┌────────┐
│ result │
│  json  │
├────────┤
│ 3      │
│ 6      │
│ 9      │
│ 12     │
│ 15     │
└────────┘

About quickjs

QuickJS DuckDB Extension

This extension provides an embedded QuickJS-NG engine for DuckDB. It allows executing JavaScript code directly within your SQL queries.

QuickJS-NG is a small, fast, and embeddable JavaScript engine that supports modern JavaScript features including ES2020.

This extension is experimental and potentially unstable. Do not use it in production.

Added Functions

function_name function_type description comment examples
quickjs scalar Execute JavaScript code and return the result as a string NULL [quickjs('1 + 2'), quickjs('"hello".toUpperCase()')]
quickjs table Execute JavaScript code that returns an array, with each element becoming a row NULL [SELECT * FROM quickjs('[1, 2, 3].map(x => x * 2)')]
quickjs_eval scalar Execute a JavaScript function with the provided arguments and return the result as JSON NULL [quickjs_eval('(a, b) => a + b', 1, 2), quickjs_eval('(x) => x * 2', 21)]

Added Settings

name description input_type scope aliases
auto_fallback_to_full_download Allows automatically falling back to full file downloads when possible. BOOLEAN GLOBAL []
ca_cert_file Path to a custom certificate file for self-signed certificates. VARCHAR GLOBAL []
enable_curl_server_cert_verification Enable server side certificate verification for CURL backend. BOOLEAN GLOBAL []
enable_server_cert_verification Enable server side certificate verification. BOOLEAN GLOBAL []
force_download Forces upfront download of file BOOLEAN GLOBAL []
hf_max_per_page Debug option to limit number of items returned in list requests UBIGINT GLOBAL []
http_keep_alive Keep alive connections. Setting this to false can help when running into connection failures BOOLEAN GLOBAL []
http_retries HTTP retries on I/O error UBIGINT GLOBAL []
http_retry_backoff Backoff factor for exponentially increasing retry wait time FLOAT GLOBAL []
http_retry_wait_ms Time between retries UBIGINT GLOBAL []
http_timeout HTTP timeout read/write/connection/retry (in seconds) UBIGINT GLOBAL []
httpfs_client_implementation Select which is the HTTPUtil implementation to be used VARCHAR GLOBAL []
merge_http_secret_into_s3_request Merges http secret params into S3 requests BOOLEAN GLOBAL []
s3_access_key_id S3 Access Key ID VARCHAR GLOBAL []
s3_endpoint S3 Endpoint VARCHAR GLOBAL []
s3_kms_key_id S3 KMS Key ID VARCHAR GLOBAL []
s3_region S3 Region VARCHAR GLOBAL []
s3_requester_pays S3 use requester pays mode BOOLEAN GLOBAL []
s3_secret_access_key S3 Access Key VARCHAR GLOBAL []
s3_session_token S3 Session Token VARCHAR GLOBAL []
s3_uploader_max_filesize S3 Uploader max filesize (between 50GB and 5TB) VARCHAR GLOBAL []
s3_uploader_max_parts_per_file S3 Uploader max parts per file (between 1 and 10000) UBIGINT GLOBAL []
s3_uploader_thread_limit S3 Uploader global thread limit UBIGINT GLOBAL []
s3_url_compatibility_mode Disable Globs and Query Parameters on S3 URLs BOOLEAN GLOBAL []
s3_url_style S3 URL style VARCHAR GLOBAL []
s3_use_ssl S3 use SSL BOOLEAN GLOBAL []
unsafe_disable_etag_checks Disable checks on ETag consistency BOOLEAN GLOBAL []