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Repair some REINDEX problems per recent discussions. The relcache is

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now able to cope with assigning new relfilenode values to nailed-in-cache
indexes, so they can be reindexed using the fully crash-safe method.  This
leaves only shared system indexes as special cases.  Remove the 'index
deactivation' code, since it provides no useful protection in the shared-
index case.  Require reindexing of shared indexes to be done in standalone
mode, but remove other restrictions on REINDEX.  -P (IgnoreSystemIndexes)
now prevents using indexes for lookups, but does not disable index updates.
It is therefore safe to allow from PGOPTIONS.  Upshot: reindexing system catalogs
can be done without a standalone backend for all cases except
shared catalogs.
This commit is contained in:
Tom Lane
2003-09-24 18:54:02 +00:00
parent 5f78c6a886
commit a56a016ceb
22 changed files with 621 additions and 635 deletions
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8
doc/src/sgml/ref/postgres-ref.sgml
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@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/postgres-ref.sgml,v 1.36 2003/09/18 20:30:15 tgl Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/ref/postgres-ref.sgml,v 1.37 2003/09/24 18:54:01 tgl Exp $
PostgreSQL documentation
-->
@ -177,9 +177,9 @@ PostgreSQL documentation
<term><option>-P</option></term>
<listitem>
<para>
Ignore system indexes while scanning/updating system tables. The
<command>REINDEX</command> command for system tables/indexes
requires this option to be used.
Ignore system indexes when reading system tables (but still update
the indexes when modifying the tables). This is useful when
recovering from damaged system indexes.
</para>
</listitem>
</varlistentry>