diff options
| author | Bruce Momjian | 2007-12-07 17:42:49 +0000 |
|---|---|---|
| committer | Bruce Momjian | 2007-12-07 17:42:49 +0000 |
| commit | 6b8d26bb0788a21b734694c53464bea76f03076e (patch) | |
| tree | 1bae81918058c4218afc3297ec5885d40d1b9404 | |
| parent | 52767ea76f6076f17778965e1df4e287d00fb661 (diff) | |
Update HOT description to make index column changes clearer.
| -rw-r--r-- | doc/src/sgml/release.sgml | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/doc/src/sgml/release.sgml b/doc/src/sgml/release.sgml index 16b91d9b0a9..94b928839fd 100644 --- a/doc/src/sgml/release.sgml +++ b/doc/src/sgml/release.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.560 2007/12/07 16:53:31 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.561 2007/12/07 17:42:49 momjian Exp $ --> <!-- Typical markup: @@ -703,13 +703,13 @@ current_date < 2017-11-17 </para> <para> - <command>UPDATE</>s and <command>DELETE</>s leave dead tuples behind, - as do failed <command>INSERT</>s. Previously only + <command>UPDATE</>s and <command>DELETE</>s leave dead tuples + behind, as do failed <command>INSERT</>s. Previously only <command>VACUUM</> could reclaim space taken by dead tuples. With <acronym>HOT</> dead tuple space can be reclaimed at the time of - <command>UPDATE</> or <command>INSERT</>. This allows for more - consistent performance. Also, <acronym>HOT</> avoids making duplicate - index entries when an <command>UPDATE</> changes no indexed columns. + <command>UPDATE</> or <command>INSERT</> if no changes are made to + indexed columns. This allows for more consistent performance. + Also, <acronym>HOT</> avoids adding duplicate index entries. </para> </listitem> |