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| author | sergefp@mysql.com <> | 2004-05-13 01:38:40 +0400 |
|---|---|---|
| committer | sergefp@mysql.com <> | 2004-05-13 01:38:40 +0400 |
| commit | a46d7542c94eb5848231324a043ddccffbc552b0 (patch) | |
| tree | 34118ff1da06b90ade9507174ddccf92c228286a /mysys/my_bit.c | |
| parent | b2efad935b38bfcf8177837082e3946c60ba8328 (diff) | |
| download | mariadb-git-a46d7542c94eb5848231324a043ddccffbc552b0.tar.gz | |
This is first cset for WL#1394 "Optimize index merge when all involved index ranges include only values with equal keys"
The main idea is to exploit the fact that key scans for "key=const" return ordered sequences of rowids.
Diffstat (limited to 'mysys/my_bit.c')
| -rw-r--r-- | mysys/my_bit.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/mysys/my_bit.c b/mysys/my_bit.c index 55dd72f5f76..01c9b5ea68d 100644 --- a/mysys/my_bit.c +++ b/mysys/my_bit.c @@ -71,3 +71,8 @@ uint my_count_bits(ulonglong v) #endif } +uint my_count_bits_ushort(ushort v) +{ + return nbits[v]; +} + |