Hi,
I want use postgresql pg_trgm module in django. pg_trgm defines special
operator percent sign. How should I escape it in django query extra method?
# Pure SQL
SELECT content, similarity(content, 'text') AS sml
FROM table
WHERE content % 'text'
ORDER BY sml DESC, content;
# Extra throws IndexError 'tuple index out of range'
# I tried escape % with %%, or \%, but it throws same exception
objects = MyModel.objects.extra(
select={'rank': 'similarity(content, %s)'},
select_params=[content],
where='content % %s',
params=[content],
order_by=['-rank']
)
# Raw query works fine
objects = MyModel.objects.raw('''SELECT *, similarity(content, %s) AS rank
FROM table WHERE content %% %s ORDER BY rank DESC LIMIT 1''', [content,
content])
How should I escape persent sign in extra() method?
Thank you!
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