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| author | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2017-11-02 15:51:05 +0100 |
|---|---|---|
| committer | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2017-11-02 15:51:41 +0100 |
| commit | c6764eb3aea63f3f95582bd660785e2b0d4439f9 (patch) | |
| tree | 1a3a264ffc810832675c809dfbc4a25724ba5309 /src/backend/executor/execMain.c | |
| parent | d8c435e1743773eba4e36498479ca6aef28a2d70 (diff) | |
| download | postgresql-c6764eb3aea63f3f95582bd660785e2b0d4439f9.tar.gz postgresql-c6764eb3aea63f3f95582bd660785e2b0d4439f9.zip | |
Revert bogus fixes of HOT-freezing bug
It turns out we misdiagnosed what the real problem was. Revert the
previous changes, because they may have worse consequences going
forward. A better fix is forthcoming.
The simplistic test case is kept, though disabled.
Discussion: https://postgr.es/m/20171102112019.33wb7g5wp4zpjelu@alap3.anarazel.de
Diffstat (limited to 'src/backend/executor/execMain.c')
| -rw-r--r-- | src/backend/executor/execMain.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/backend/executor/execMain.c b/src/backend/executor/execMain.c index 638a856dc39..2e8aca59a7f 100644 --- a/src/backend/executor/execMain.c +++ b/src/backend/executor/execMain.c @@ -2595,7 +2595,8 @@ EvalPlanQualFetch(EState *estate, Relation relation, int lockmode, * atomic, and Xmin never changes in an existing tuple, except to * invalid or frozen, and neither of those can match priorXmax.) */ - if (!HeapTupleUpdateXmaxMatchesXmin(priorXmax, tuple.t_data)) + if (!TransactionIdEquals(HeapTupleHeaderGetXmin(tuple.t_data), + priorXmax)) { ReleaseBuffer(buffer); return NULL; @@ -2742,7 +2743,8 @@ EvalPlanQualFetch(EState *estate, Relation relation, int lockmode, /* * As above, if xmin isn't what we're expecting, do nothing. */ - if (!HeapTupleUpdateXmaxMatchesXmin(priorXmax, tuple.t_data)) + if (!TransactionIdEquals(HeapTupleHeaderGetXmin(tuple.t_data), + priorXmax)) { ReleaseBuffer(buffer); return NULL; |