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| author | Bruce Momjian <bruce@momjian.us> | 2010-02-26 02:31:52 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2010-02-26 02:31:52 +0000 |
| commit | ca8e3a51a05b1265f36f82497b039d7783c3dd98 (patch) | |
| tree | 421dc0bd785604d056d22f4681cef7ec1e84069f /doc/src | |
| parent | 4f96ddd1d36f33831a8452a8f6f8f7d6a08f7cde (diff) | |
| download | postgresql-ca8e3a51a05b1265f36f82497b039d7783c3dd98.tar.gz postgresql-ca8e3a51a05b1265f36f82497b039d7783c3dd98.zip | |
Document pg_restore --jobs as a performance enhancement.
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/perform.sgml | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/doc/src/sgml/perform.sgml b/doc/src/sgml/perform.sgml index 1a9f7c1452d..02c5071d2ae 100644 --- a/doc/src/sgml/perform.sgml +++ b/doc/src/sgml/perform.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/perform.sgml,v 1.73 2010/01/15 09:18:59 heikki Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/perform.sgml,v 1.74 2010/02/26 02:31:52 momjian Exp $ --> <chapter id="performance-tips"> <title>Performance Tips</title> @@ -1027,7 +1027,10 @@ SELECT * FROM x, y, a, b, c WHERE something AND somethingelse; possibly discarding many hours of processing. Depending on how interrelated the data is, that might seem preferable to manual cleanup, or not. <command>COPY</> commands will run fastest if you use a single - transaction and have WAL archiving turned off. + transaction and have WAL archiving turned off. + <application>pg_restore</> also has a <option>--jobs</> option + which allows concurrent data loading and index creation, and has + the performance advantages of doing COPY in a single transaction. </para> </listitem> <listitem> |