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| author | Thomas Munro <tmunro@postgresql.org> | 2019-03-27 21:16:50 +1300 |
|---|---|---|
| committer | Thomas Munro <tmunro@postgresql.org> | 2019-03-27 21:30:04 +1300 |
| commit | d2fd7f74ee61f41a3bd5daf2942b72cebd88f346 (patch) | |
| tree | 931fb937a69857d64191d6a4fa34d878f69c2aab /src/backend/parser/parse_utilcmd.c | |
| parent | 1983af8e899389187026cb34c1ca9d89ea986120 (diff) | |
| download | postgresql-d2fd7f74ee61f41a3bd5daf2942b72cebd88f346.tar.gz postgresql-d2fd7f74ee61f41a3bd5daf2942b72cebd88f346.zip | |
Fix off-by-one error in txid_status().
The transaction ID returned by GetNextXidAndEpoch() is in the future,
so we can't attempt to access its status or we might try to read a
CLOG page that doesn't exist. The > vs >= confusion probably stemmed
from the choice of a variable name containing the word "last" instead
of "next", so fix that too.
Back-patch to 10 where the function arrived.
Author: Thomas Munro
Discussion: https://postgr.es/m/CA%2BhUKG%2Buua_BV5cyfsioKVN2d61Lukg28ECsWTXKvh%3DBtN2DPA%40mail.gmail.com
Diffstat (limited to 'src/backend/parser/parse_utilcmd.c')
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