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> * -Add deleted bit to index tuples to reduce heap access
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Bruce Momjian 2002-06-03 22:46:09 +00:00
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@ -1,6 +1,6 @@
TODO list for PostgreSQL TODO list for PostgreSQL
======================== ========================
Last updated: Mon Jun 3 13:40:49 EDT 2002 Last updated: Mon Jun 3 18:45:19 EDT 2002
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
@ -156,7 +156,7 @@ Indexes
* Use index to restrict rows returned by multi-key index when used with * Use index to restrict rows returned by multi-key index when used with
non-consecutive keys or OR clauses, so fewer heap accesses non-consecutive keys or OR clauses, so fewer heap accesses
* Be smarter about insertion of already-ordered data into btree index * Be smarter about insertion of already-ordered data into btree index
* Add deleted bit to index tuples to reduce heap access * -Add deleted bit to index tuples to reduce heap access
* Prevent index uniqueness checks when UPDATE does not modifying column * Prevent index uniqueness checks when UPDATE does not modifying column
* Add bitmap indexes [performance] * Add bitmap indexes [performance]
* Improve handling of index scans for NULL * Improve handling of index scans for NULL