Thread: pgsql: Prevent possible crash reading pg_stat_activity.

Prevent possible crash reading pg_stat_activity.

Also, avoid reading PGPROC's wait_event field twice, once for the wait
event and again for the wait_event_type, because the value might change
in the middle.

Petr Jelinek and Robert Haas

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/c4a586c4860477ddae6d4f9cef88486f0e37c37e

Modified Files
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src/backend/utils/adt/pgstatfuncs.c | 33 +++++++++++++++++++++------------
1 file changed, 21 insertions(+), 12 deletions(-)