Tom Lane 3b167a4099 If a LIMIT is applied to a UNION ALL query, plan each UNION arm as ...

if the limit were directly applied to it.  This does not actually
add a LIMIT plan node to the generated subqueries --- that would be
useless overhead --- but it does cause the planner to prefer fast-
start plans when the limit is small.  After an idea from Phil Endecott.

2005-06-10 02:21:05 +00:00

..

Makefile

$Header: -> $PostgreSQL Changes ...

2003-11-29 19:52:15 +00:00

prepjointree.c

Remove planner's private fields from Query struct, and put them into

2005-06-05 22:32:58 +00:00

prepqual.c

Rethink the order of expression preprocessing: eval_const_expressions

2005-03-28 00:58:26 +00:00

preptlist.c

Remove planner's private fields from Query struct, and put them into

2005-06-05 22:32:58 +00:00

prepunion.c

If a LIMIT is applied to a UNION ALL query, plan each UNION arm as

2005-06-10 02:21:05 +00:00