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Add BRIN infrastructure for "inclusion" opclasses

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This lets BRIN be used with R-Tree-like indexing strategies.

Also provided are operator classes for range types, box and inet/cidr.
The infrastructure provided here should be sufficient to create operator
classes for similar datatypes; for instance, opclasses for PostGIS
geometries should be doable, though we didn't try to implement one.

(A box/point opclass was also submitted, but we ripped it out before
commit because the handling of floating point comparisons in existing
code is inconsistent and would generate corrupt indexes.)

Author: Emre Hasegeli.  Cosmetic changes by me
Review: Andreas Karlsson
This commit is contained in:
Alvaro Herrera
2015-05-15 18:05:22 -03:00
parent 199f5973c5
commit b0b7be6133
18 changed files with 928 additions and 105 deletions
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4
src/include/access/stratnum.h
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@@ -65,9 +65,9 @@ typedef uint16 StrategyNumber;
#define RTGreaterStrategyNumber 22 /* for > */
#define RTGreaterEqualStrategyNumber 23 /* for >= */
#define RTSubStrategyNumber 24 /* for inet >> */
#define RTSubOrEqualStrategyNumber 25 /* for inet <<= */
#define RTSubEqualStrategyNumber 25 /* for inet <<= */
#define RTSuperStrategyNumber 26 /* for inet << */
#define RTSuperOrEqualStrategyNumber 27 /* for inet >>= */
#define RTSuperEqualStrategyNumber 27 /* for inet >>= */
#define RTMaxStrategyNumber 27