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Make sure we only try to free snapshots that have been passed through

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CopySnapshot, per Neil Conway.  Also add a comment about the assumption in
GetSnapshotData that the argument is statically allocated.

Also, fix some more typos in comments in snapmgr.c.
This commit is contained in:
Alvaro Herrera
2008-07-11 02:10:14 +00:00
parent 0c2914d4cb
commit 110147653a
2 changed files with 9 additions and 6 deletions
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5
src/backend/storage/ipc/procarray.c
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@ -23,7 +23,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/ipc/procarray.c,v 1.44 2008/05/12 20:02:00 alvherre Exp $
* $PostgreSQL: pgsql/src/backend/storage/ipc/procarray.c,v 1.45 2008/07/11 02:10:13 alvherre Exp $
*
*-------------------------------------------------------------------------
*/
@ -666,6 +666,9 @@ GetOldestXmin(bool allDbs, bool ignoreVacuum)
* 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).
*
* Note: this function should probably not be called with an argument that's
* not statically allocated (see xip allocation below).
*/
Snapshot
GetSnapshotData(Snapshot snapshot)