c6e3ac11b6
This patch creates an API whereby a btree index opclass can optionally provide non-SQL-callable support functions for sorting. In the initial patch, we only use this to provide a directly-callable comparator function, which can be invoked with a bit less overhead than the traditional SQL-callable comparator. While that should be of value in itself, the real reason for doing this is to provide a datatype-extensible framework for more aggressive optimizations, as in Peter Geoghegan's recent work. Robert Haas and Tom Lane |
||
|---|---|---|
| .. | ||
| common | ||
| gin | ||
| gist | ||
| hash | ||
| heap | ||
| index | ||
| nbtree | ||
| transam | ||
| Makefile | ||