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Ability to add descending order indexes (#262)

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* DescIndex(column) for descending index columns, refs #260
* Ability to add desc indexes using CLI, closes #260
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Simon Willison 2021-05-28 22:01:38 -07:00 • committed by GitHub
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@ -1033,6 +1033,14 @@ Use the ``--unique`` option to create a unique index.
Use ``--if-not-exists`` to avoid attempting to create the index if one with that name already exists.
To add an index on a column in descending order, prefix the column with a hyphen. Since this can be confused for a command-line option you need to construct that like this::
$ sqlite-utils create-index mydb.db mytable -- col1 -col2 col3
This will create an index on that table on ``(col1, col2 desc, col3)``.
If your column names are already prefixed with a hyphen you'll need to manually execute a ``CREATE INDEX`` SQL statement to add indexes to them rather than using this tool.
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