pgsql: Lock all relations referred to in updatable views

Lock all relations referred to in updatable views

Even views considered "simple" enough to be automatically updatable may
have mulitple relations involved (eg: in a where clause).  We need to
make sure and lock those relations when rewriting the query.

Back-patch to 9.3 where updatable views were added.

Pointed out by Andres, patch thanks to Dean Rasheed.

Branch
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REL9_5_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/9801bae217e9d3f72e2d1f3dd780bf0bf9365dae

Modified Files
--------------
src/backend/rewrite/rewriteHandler.c |   15 +++++++++++++++
1 file changed, 15 insertions(+)