| Commit message (Collapse) | Author | Age | |
|---|---|---|---|
| * | Update copyright notices for year 2012. | Bruce Momjian | 2012-01-01 |
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| * | Teach SP-GiST to do index-only scans. | Tom Lane | 2011-12-19 |
| | | | | | | | | | | | | | Operator classes can specify whether or not they support this; this preserves the flexibility to use lossy representations within an index. In passing, move constant data about a given index into the rd_amcache cache area, instead of doing fresh lookups each time we start an index operation. This is mainly to try to make sure that spgcanreturn() has insignificant cost; I still don't have any proof that it matters for actual index accesses. Also, get rid of useless copying of FmgrInfo pointers; we can perfectly well use the relcache's versions in-place. | ||
| * | Fix compiler warning seen on 64-bit machine. | Tom Lane | 2011-12-17 |
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| * | Add SP-GiST (space-partitioned GiST) index access method. | Tom Lane | 2011-12-17 |
| SP-GiST is comparable to GiST in flexibility, but supports non-balanced partitioned search structures rather than balanced trees. As described at PGCon 2011, this new indexing structure can beat GiST in both index build time and query speed for search problems that it is well matched to. There are a number of areas that could still use improvement, but at this point the code seems committable. Teodor Sigaev and Oleg Bartunov, with considerable revisions by Tom Lane | |||
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