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feat: add a wildcard for _json columns

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John Hogenmiller 2022-06-10 20:52:07 -04:00
commit 1cdcd8894c
2 changed files with 8 additions and 2 deletions
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6
docs/json_api.rst
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@ -190,6 +190,12 @@ query string arguments:
JSON. Without this argument those columns will be returned as JSON objects
that have been double-encoded into a JSON string value.
If you have many columns containing JSON values, you can pass ``_json=*``
to attempt converting loading all columns as JSON. This is a best effort
approach. Any columns that fail to render as valid JSON will be passed
through unaltered, while any column with valid JSON will be converted.
There may be a performance impact on large result sets.
Compare `this query without the argument <https://fivethirtyeight.datasettes.com/fivethirtyeight.json?sql=select+%27{%22this+is%22%3A+%22a+json+object%22}%27+as+d&_shape=array>`_ to `this query using the argument <https://fivethirtyeight.datasettes.com/fivethirtyeight.json?sql=select+%27{%22this+is%22%3A+%22a+json+object%22}%27+as+d&_shape=array&_json=d>`_
``?_json_infinity=on``