Re: nulls in GIN index

På mandag 11. august 2014 kl. 11:17:56, skrev worthy7 <worthy(dot)vii(at)gmail(dot)com
<mailto:worthy(dot)vii(at)gmail(dot)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')   --
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