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| author | drh <drh@noemail.net> | 2018-06-07 18:13:49 +0000 |
|---|---|---|
| committer | drh <drh@noemail.net> | 2018-06-07 18:13:49 +0000 |
| commit | 83193d0133328a28dbd4d4bbd1f9747158d253a2 (patch) | |
| tree | 22a01737f468f6ba6b65fd233043d3c7cc52d959 /src/expr.c | |
| parent | 3c49eaf4be865f4f9a092073b7609bb69a06ee51 (diff) | |
| parent | cf025a8c18590ea3b11a160cc9d2a1ba53631efe (diff) | |
| download | sqlite-83193d0133328a28dbd4d4bbd1f9747158d253a2.tar.gz sqlite-83193d0133328a28dbd4d4bbd1f9747158d253a2.zip | |
The IN-early-out optimization: When doing a look-up on a multi-column index
and an IN operator is used on a column other than the left-most column, then
if no rows match against the first IN value, check to make sure there exist
rows that match the columns to the right before continuing with the next IN
value.
FossilOrigin-Name: 09fffbdf9f2f6ce31a22d5a6df7a45f19a16628da622f12d6e33171cce09fb21
Diffstat (limited to 'src/expr.c')
0 files changed, 0 insertions, 0 deletions