Re: nulls in GIN index - Mailing list pgsql-hackers
På mandag 11. august 2014 kl. 11:17:56, skrev worthy7 <worthy.vii@gmail.com>:
Perhaps I'm missing something
Table has 2 columns, text and ftstext
text: "how are you"
ftstest: (nothing)
Because "how" and "are" and "you" are too common to be tsvectored. Which is
fine.
So if a user searches for "how are you":
select * from tbl_lines WHERE
ftstext @@ plainto_tsquery('English', 'how are you')
Returns nothing. Which I somewhat understand, but I want it to return all
the rows with nothing in the ftstext.
plainto_tsquery('English', 'how are you') = ''
and the ftstext of some rows is also = ''
So why doesn't the index return all these rows when a null string is
searched.
I think you can see what im trying to achieve, how do I do it?
Use the 'simple' dictionary:
my_fts_column @@ to_tsquery('simple', 'how are you')
-- 
Andreas Joseph Krogh
CTO / Partner - Visena AS
Mobile: +47 909 56 963
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