Thread: Doc patch for create index
A doc patch to add an example of what an invalid index looks like in psql, as
requested by a commenter and Bruce.
Index: doc/src/sgml/ref/create_index.sgml
===================================================================
RCS file: /home/stark/src/REPOSITORY/pgsql/doc/src/sgml/ref/create_index.sgml,v
retrieving revision 1.60
diff -c -r1.60 create_index.sgml
*** doc/src/sgml/ref/create_index.sgml 31 Jan 2007 23:26:03 -0000 1.60
--- doc/src/sgml/ref/create_index.sgml 3 Apr 2007 17:19:25 -0000
***************
*** 332,338 ****
uniqueness violation in a unique index, the <command>CREATE INDEX</>
command will fail but leave behind an <quote>invalid</> index. This index
will be ignored for querying purposes because it might be incomplete;
! however it will still consume update overhead. The recommended recovery
method in such cases is to drop the index and try again to perform
<command>CREATE INDEX CONCURRENTLY</>. (Another possibility is to rebuild
the index with <command>REINDEX</>. However, since <command>REINDEX</>
--- 332,352 ----
uniqueness violation in a unique index, the <command>CREATE INDEX</>
command will fail but leave behind an <quote>invalid</> index. This index
will be ignored for querying purposes because it might be incomplete;
! however it will still consume update overhead. The <application>psql</>
! <command>\d</> command will mark such an <quote>invalid</> index as such:
!
! <programlisting>
! postgres=# \d tab
! Table "public.tab"
! Column | Type | Modifiers
! --------+---------+-----------
! col | integer |
! Indexes:
! "idx" btree (col) INVALID
! </programlisting>
!
! The recommended recovery
method in such cases is to drop the index and try again to perform
<command>CREATE INDEX CONCURRENTLY</>. (Another possibility is to rebuild
the index with <command>REINDEX</>. However, since <command>REINDEX</>
--
Gregory Stark
EnterpriseDB http://www.enterprisedb.com
Patch applied. Thanks. Your documentation changes can be viewed in five minutes using links on the developer's page, http://www.postgresql.org/developer/testing. --------------------------------------------------------------------------- stark wrote: > > > A doc patch to add an example of what an invalid index looks like in psql, as > requested by a commenter and Bruce. > > > > Index: doc/src/sgml/ref/create_index.sgml > =================================================================== > RCS file: /home/stark/src/REPOSITORY/pgsql/doc/src/sgml/ref/create_index.sgml,v > retrieving revision 1.60 > diff -c -r1.60 create_index.sgml > *** doc/src/sgml/ref/create_index.sgml 31 Jan 2007 23:26:03 -0000 1.60 > --- doc/src/sgml/ref/create_index.sgml 3 Apr 2007 17:19:25 -0000 > *************** > *** 332,338 **** > uniqueness violation in a unique index, the <command>CREATE INDEX</> > command will fail but leave behind an <quote>invalid</> index. This index > will be ignored for querying purposes because it might be incomplete; > ! however it will still consume update overhead. The recommended recovery > method in such cases is to drop the index and try again to perform > <command>CREATE INDEX CONCURRENTLY</>. (Another possibility is to rebuild > the index with <command>REINDEX</>. However, since <command>REINDEX</> > --- 332,352 ---- > uniqueness violation in a unique index, the <command>CREATE INDEX</> > command will fail but leave behind an <quote>invalid</> index. This index > will be ignored for querying purposes because it might be incomplete; > ! however it will still consume update overhead. The <application>psql</> > ! <command>\d</> command will mark such an <quote>invalid</> index as such: > ! > ! <programlisting> > ! postgres=# \d tab > ! Table "public.tab" > ! Column | Type | Modifiers > ! --------+---------+----------- > ! col | integer | > ! Indexes: > ! "idx" btree (col) INVALID > ! </programlisting> > ! > ! The recommended recovery > method in such cases is to drop the index and try again to perform > <command>CREATE INDEX CONCURRENTLY</>. (Another possibility is to rebuild > the index with <command>REINDEX</>. However, since <command>REINDEX</> > > > -- > Gregory Stark > EnterpriseDB http://www.enterprisedb.com > > > ---------------------------(end of broadcast)--------------------------- > TIP 7: You can help support the PostgreSQL project by donating at > > http://www.postgresql.org/about/donate -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. +