I'm writing a dictionary app and need to do the usual word suggesting while typing.
LIKE somestring%
is rather slow (~1300ms o开发者_运维百科n a ~100k row table) so I've turned to FTS3.
Problem is, I haven't found a sane way to search from the beginning of a string.
Now I'm performing a query likeSELECT word, offsets(entries) FROM entries WHERE word MATCH '"chicken *"';
, then parse the offsets string in code.
Are there any better options?
Yes, make sure to set the index on field word
and use
word >= 'chicken ' AND word < 'chicken z'
instead of LIKE or MATCH or GLOB
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