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Patch: ALTER TYPE 2: skip already-provable no-work rewrites

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CommitFest 2011-01
Topic Performance
Patch Status Committed
Author Noah Misch
Reviewers Robert Haas, Stephen Frost
Committer Robert Haas
Close Date 2011-02-14
Patch by nmisch on 2011-01-12 06:03:33 AM: Initial version.
Review by rhaas on 2011-01-22 11:13:34 PM: Please clarify terminology, split patch in two, avoid unrelated changes, update docs.
Patch by nmisch on 2011-01-24 11:15:13 PM: Changed per review.
Patch by nmisch on 2011-01-27 03:33:08 PM: v4: merge with master and ALTER TYPE 0; update composite handling to preserve existing behavior
Patch by rhaas on 2011-02-11 10:12:42 AM: simplified version
Comment by rhaas on 2011-02-12 08:27:47 AM: Partially committed.
Patch by nmisch on 2011-02-12 10:35:36 AM: Rebased remainder
Patch by nmisch on 2011-02-14 07:53:29 AM: v6
Review by sfrost on 2011-02-14 12:56:53 PM: Additional review w/ a few questions, patch overall seems in good shape.
Patch by nmisch on 2011-02-14 09:35:54 PM: v7: improved comments
Comment by rhaas on 2011-02-14 11:14:18 PM: deferring rewrite->scan case to 9.2; fixed unconstrained domain case

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