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Clarify docs on hot standby lock release

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Andres Freund and Simon Riggs
This commit is contained in:
Simon Riggs
2012-11-13 15:54:01 -03:00
parent 8f40ad1f4e
commit 68f7fe140b
2 changed files with 11 additions and 2 deletions
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5
src/backend/storage/ipc/procarray.c
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@@ -1564,6 +1564,11 @@ ProcArrayInstallImportedXmin(TransactionId xmin, TransactionId sourcexid)
* We don't worry about updating other counters, we want to keep this as
* simple as possible and leave GetSnapshotData() as the primary code for
* that bookkeeping.
*
* Note that if any transaction has overflowed its cached subtransactions
* then there is no real need include any subtransactions. That isn't a
* common enough case to worry about optimising the size of the WAL record,
* and we may wish to see that data for diagnostic purposes anyway.
*/
RunningTransactions
GetRunningTransactionData(void)