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| author | Marco Nelissen <marcone@google.com> | 2012-07-31 15:00:12 -0700 |
|---|---|---|
| committer | Marco Nelissen <marcone@google.com> | 2012-08-02 12:32:05 -0700 |
| commit | 8ab2dc2f9680307febe997631c2148729f714e3d (patch) | |
| tree | 25dbe904d90a3dce391452a8a51aac219676125c /api | |
| parent | b1758cf8cd007bfffb3d8adceca25f3b0c82bd77 (diff) | |
| download | frameworks_base-8ab2dc2f9680307febe997631c2148729f714e3d.zip frameworks_base-8ab2dc2f9680307febe997631c2148729f714e3d.tar.gz frameworks_base-8ab2dc2f9680307febe997631c2148729f714e3d.tar.bz2 | |
Improve scan time for some cases
When the path being matched has a sqlite wildcard character in it, a "like"
match will be quite slow. Unfortunately this is fairly common, since "_"
is a wildcard character. However, because in most cases the case of the path
in the database will match the case on disk, an "=" match will work, so it
is worthwhile to try an "=" match first, before trying a "like".
If there are no wildcard characters, the "like" will be as fast as the "=",
because of the case-insensitive index on the _data column, so there is no
need to try "=" first in that case.
b/6751354
Change-Id: I1cd4efbd56a37886cb44a86acb73eb9a3c9f303d
Diffstat (limited to 'api')
0 files changed, 0 insertions, 0 deletions