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You can use this to view the contents of the time to XID mapping which the server maintains when old_snapshot_threshold != -1. Being able to view that information may be interesting for users, and it's definitely useful for figuring out whether the mapping is being maintained correctly. It isn't, so that will need to be fixed in a subsequent commit. Patch by me, reviewed by Thomas Munro, Dilip Kumar, Hamid Akhtar. Discussion: http://postgr.es/m/CA+TgmoY=aqf0zjTD+3dUWYkgMiNDegDLFjo+6ze=Wtpik+3XqA@mail.gmail.com
6 lines
168 B
Plaintext
6 lines
168 B
Plaintext
# old_snapshot extension
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comment = 'utilities in support of old_snapshot_threshold'
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default_version = '1.0'
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module_pathname = '$libdir/old_snapshot'
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relocatable = true
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