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authorSimon Riggs <simon@2ndQuadrant.com>2010-12-09 09:41:47 +0000
committerSimon Riggs <simon@2ndQuadrant.com>2010-12-09 09:41:47 +0000
commitb9075a6d2f9b07a00262a670dd60272904c79dce (patch)
treeb514ca79db8457ffe6013ee512e2f0598713f1a3 /src/backend/access/gist
parent576477e73c4a9cb32c7471c1cec354fd5328140e (diff)
downloadpostgresql-b9075a6d2f9b07a00262a670dd60272904c79dce.tar.gz
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Reduce spurious Hot Standby conflicts from never-visible records.
Hot Standby conflicts only with tuples that were visible at some point. So ignore tuples from aborted transactions or for tuples updated/deleted during the inserting transaction when generating the conflict transaction ids. Following detailed analysis and test case by Noah Misch. Original report covered btree delete records, correctly observed by Heikki Linnakangas that this applies to other cases also. Fix covers all sources of cleanup records via common code.
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