Skip site navigation (1) Skip section navigation (2)

pgsql: Document the DISTINCT noise word in the UNION/INTERSECT/EXCEPTc

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Document the DISTINCT noise word in the UNION/INTERSECT/EXCEPTc
Date: 2010-10-15 19:49:20
Message-ID: E1P6qHI-0001Ur-NQ@gemulon.postgresql.org (view raw or flat)
Thread:
Lists: pgsql-committers
Document the DISTINCT noise word in the UNION/INTERSECT/EXCEPT constructs.

I also rearranged the order of the sections to match the logical order
of processing steps: the distinct-elimination implied by SELECT DISTINCT
happens before, not after, any UNION/INTERSECT/EXCEPT combination.

Per a suggestion from Hitoshi Harada.

Branch
------
master

Details
-------
http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=71d24466fb84bf51c479dcc85b52a0c2b71b9c50

Modified Files
--------------
doc/src/sgml/ref/select.sgml      |  126 ++++++++++++++++++++-----------------
doc/src/sgml/ref/select_into.sgml |    2 +-
2 files changed, 69 insertions(+), 59 deletions(-)

pgsql-committers by date

Next:From: Peter EisentrautDate: 2010-10-15 19:57:47
Subject: pgsql: Support host names in pg_hba.conf
Previous:From: Alvaro HerreraDate: 2010-10-15 17:36:28
Subject: pgsql: Allow pg_ctl to register the service in either AUTO or DEMANDst

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group