diff options
| author | Bruce Momjian | 2004-11-09 15:11:11 +0000 |
|---|---|---|
| committer | Bruce Momjian | 2004-11-09 15:11:11 +0000 |
| commit | 960f545041bc3c6a7536d4ee8328c087c52616b3 (patch) | |
| tree | 46e71e1264372468d149662a35b6d485f1ba61f5 | |
| parent | 1813d9466472330bb3da96989175d63bcb03e52a (diff) | |
Update bitmap index description:
< Such indexes could be more compact if there are only a few unique values.
> Such indexes could be more compact if there are only a few distinct values.
> Such indexes can also be compressed. Keeping such indexes updated can be
> costly.
| -rw-r--r-- | doc/TODO | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -6,7 +6,7 @@ TODO list for PostgreSQL Bracketed items "[]" have more detail. Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) -Last updated: Mon Nov 8 23:13:58 EST 2004 +Last updated: Tue Nov 9 10:10:57 EST 2004 The most recent version of this document can be viewed at the PostgreSQL web site, http://www.PostgreSQL.org. @@ -261,7 +261,9 @@ Indexes * Allow the creation of on-disk bitmap indexes which can be quickly combined with other bitmap indexes - Such indexes could be more compact if there are only a few unique values. + Such indexes could be more compact if there are only a few distinct values. + Such indexes can also be compressed. Keeping such indexes updated can be + costly. * Allow use of indexes to search for NULLs |