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| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2014-12-22 12:05:57 +0200 |
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| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2014-12-22 12:05:57 +0200 |
| commit | e7032610f76e6c8345496ae7bbdf49d3c40df30f (patch) | |
| tree | 8000940e75f51aed385fecdc26ebdd85a05016b9 /src/backend/access/gist/gistvacuum.c | |
| parent | 699300a146c04e207a8fdec407538cdf5368fde5 (diff) | |
| download | postgresql-e7032610f76e6c8345496ae7bbdf49d3c40df30f.tar.gz postgresql-e7032610f76e6c8345496ae7bbdf49d3c40df30f.zip | |
Use a pairing heap for the priority queue in kNN-GiST searches.
This performs slightly better, uses less memory, and needs slightly less
code in GiST, than the Red-Black tree previously used.
Reviewed by Peter Geoghegan
Diffstat (limited to 'src/backend/access/gist/gistvacuum.c')
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