Robert Haas 7c75ef5715 hash: Implement page-at-a-time scan. ... Commit 09cb5c0e7d added a similar optimization to btree back in 2006, but nobody bothered to implement the same thing for hash indexes, probably because they weren't WAL-logged and had lots of other performance problems as well. As with the corresponding btree case, this eliminates the problem of potentially needing to refind our position within the page, and cuts down on pin/unpin traffic as well. Ashutosh Sharma, reviewed by Alexander Korotkov, Jesper Pedersen, Amit Kapila, and me. Some final edits to comments and README by me. Discussion: http://postgr.es/m/CAE9k0Pm3KTx93K8_5j6VMzG4h5F+SyknxUwXrN-zqSZ9X8ZS3w@mail.gmail.com		2017-09-22 13:56:27 -04:00
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brin	Change tupledesc->attrs[n] to TupleDescAttr(tupledesc, n).	2017-08-20 11:19:07 -07:00
common	Add support for coordinating record typmods among parallel workers.	2017-09-14 19:59:21 -07:00
gin	Change tupledesc->attrs[n] to TupleDescAttr(tupledesc, n).	2017-08-20 11:19:07 -07:00
gist	Remove no-op GiST support functions in the core GiST opclasses.	2017-09-19 23:32:59 -04:00
hash	hash: Implement page-at-a-time scan.	2017-09-22 13:56:27 -04:00
heap	Improve performance of get_actual_variable_range with recently-dead tuples.	2017-09-07 19:41:51 -04:00
index	Phase 3 of pgindent updates.	2017-06-21 15:35:54 -04:00
nbtree	Minor code-cleanliness improvements for btree.	2017-09-18 16:36:28 -04:00
rmgrdesc	Remove dedicated B-tree root-split record types.	2017-08-16 12:24:40 +03:00
spgist	Change tupledesc->attrs[n] to TupleDescAttr(tupledesc, n).	2017-08-20 11:19:07 -07:00
tablesample	Update copyright via script for 2017	2017-01-03 13:48:53 -05:00
transam	Make WAL segment size configurable at initdb time.	2017-09-19 22:03:48 -07:00
Makefile	TABLESAMPLE, SQL Standard and extensible	2015-05-15 14:37:10 -04:00