Обсуждение: pgsql: Avoid inserting no-op Limit plan nodes.

Avoid inserting no-op Limit plan nodes.

This was discussed in connection with the patch to avoid inserting no-op
Result nodes, but not actually implemented therein.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/1a1832eb085e5bca198735e5d0e766a3cb61b8fc

Modified Files
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src/backend/optimizer/plan/planner.c          |   57 +++++++++++++++++++++++-
src/test/regress/expected/updatable_views.out |   60 +++++++++++-------------
2 files changed, 84 insertions(+), 33 deletions(-)