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authorRobert Haas <rhaas@postgresql.org>2012-02-07 12:41:42 -0500
committerRobert Haas <rhaas@postgresql.org>2012-02-07 12:42:50 -0500
commitf7d7dade8afe19847510efe44be191c35e1ce26c (patch)
tree7fcf4ebc6f73c83acc6875ffc6634581c1c6814b /src/backend/access/gist
parent3cc0800829a6dda5347497337b0cf43848da4acf (diff)
downloadpostgresql-f7d7dade8afe19847510efe44be191c35e1ce26c.tar.gz
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Add a transform function for varbit typmod coercisions.
This enables ALTER TABLE to skip table and index rebuilds when the new type is unconstraint varbit, or when the allowable number of bits is not decreasing. Noah Misch, with review and a fix for an OID collision by me.
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