Query String Parameters

container.key_value.query_string

URL query string format: key1=value1&key2=value2. Commonly found in URLs and HTTP POST bodies.

Domain

container

Try it

CLI

$ finetype infer -i "name=John&age=30&city=NewYork"
→ container.key_value.query_string

DuckDB

Detect

SELECT finetype('name=John&age=30&city=NewYork');
-- → 'container.key_value.query_string'

Cast expression

CAST({col} AS VARCHAR)

Safe cast pipeline

-- Normalise and cast in one step
SELECT TRY_CAST(finetype_cast(my_column) AS VARCHAR) AS clean_value
FROM my_table
WHERE finetype(my_column) = 'container.key_value.query_string';

Decompose

Expression

RECURSIVE_PARSE_QUERY_STRING({col})

JSON Schema

finetype schema container.key_value.query_string

{
  "$id": "https://meridian.online/schemas/container.key_value.query_string",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "description": "URL query string format: key1=value1&key2=value2. Commonly found in URLs and HTTP POST bodies.",
  "examples": [
    "name=John&age=30&city=NewYork",
    "q=python&page=1",
    "user_id=123&token=abc123xyz"
  ],
  "pattern": "^[^=&]+=([^&]*)(&[^=&]+=[^&]*)*$",
  "title": "Query String Parameters",
  "type": "string",
  "x-finetype-broad-type": "VARCHAR",
  "x-finetype-transform": "CAST({col} AS VARCHAR)"
}

Examples

name=John&age=30&city=NewYorkq=python&page=1user_id=123&token=abc123xyz