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Craig Ringer, reviewed by me.
This commit is contained in:
Robert Haas 2017-04-03 23:07:31 -04:00
parent 7cdf6668cf
commit c8b5c3cb06
1 changed files with 2 additions and 1 deletions
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3
src/backend/storage/ipc/procarray.c
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@ -1493,7 +1493,8 @@ GetMaxSnapshotSubxidCount(void)
* older than this are known not running any more.
* RecentGlobalXmin: the global xmin (oldest TransactionXmin across all
* running transactions, except those running LAZY VACUUM). This is
* the same computation done by GetOldestXmin(true, true).
* the same computation done by
* GetOldestXmin(NULL, PROCARRAY_FLAGS_VACUUM).
* RecentGlobalDataXmin: the global xmin for non-catalog tables
* >= RecentGlobalXmin
*