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@ -1493,7 +1493,8 @@ GetMaxSnapshotSubxidCount(void) |
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* older than this are known not running any more. |
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* older than this are known not running any more. |
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* RecentGlobalXmin: the global xmin (oldest TransactionXmin across all |
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* RecentGlobalXmin: the global xmin (oldest TransactionXmin across all |
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* running transactions, except those running LAZY VACUUM). This is |
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* running transactions, except those running LAZY VACUUM). This is |
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* the same computation done by GetOldestXmin(true, true). |
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* the same computation done by |
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* GetOldestXmin(NULL, PROCARRAY_FLAGS_VACUUM). |
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* RecentGlobalDataXmin: the global xmin for non-catalog tables |
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* RecentGlobalDataXmin: the global xmin for non-catalog tables |
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* >= RecentGlobalXmin |
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* >= RecentGlobalXmin |
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* |
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* |
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