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add_column now accepts explicit SQLite types, refs #15

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Simon Willison 2019-02-24 11:49:24 -08:00
commit 6d25f648ed
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docs/python-api.rst
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@ -190,9 +190,16 @@ You can add a new column to a table using the ``.add_column(col_name, col_type)`
.. code-block:: python
db["dogs"].add_column("instagram", str)
db["dogs"].add_column("weight", float)
db["dogs"].add_column("dob", datetime.date)
db["dogs"].add_column("image", "BLOB")
You can pass any of the following Python types as the second argument - ``sqlite-utils`` will create the column using the appropriate SQLite type from this list::
You can specify the ``col_type`` argument either using a SQLite type as a string, or by directly passing a Python type e.g. ``str`` or ``float``.
SQLite types you can specify are ``"TEXT"``, ``"INTEGER"``, ``"FLOAT"`` or ``"BLOB"``.
If you pass a Python type, it will be mapped to SQLite types as shown here::
float: "FLOAT"
int: "INTEGER"