Document the DISTINCT noise word in the UNION/INTERSECT/EXCEPT constructs.
authorTom Lane <tgl@sss.pgh.pa.us>
Fri, 15 Oct 2010 19:48:45 +0000 (15:48 -0400)
committerTom Lane <tgl@sss.pgh.pa.us>
Fri, 15 Oct 2010 19:48:45 +0000 (15:48 -0400)
commit71d24466fb84bf51c479dcc85b52a0c2b71b9c50
tree951b251cc99fd6c709d5329edfb56c759f183a9c
parent0c9b166db5329119b6553e0f38fe486521f1352f
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.
doc/src/sgml/ref/select.sgml
doc/src/sgml/ref/select_into.sgml