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Return NULL for checksum failures if checksums are not enabled

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Returning 0 could falsely indicate that there is no problem. NULL
correctly indicates that there is no information about potential
problems.

Also return 0 as numbackends instead of NULL for shared objects (as no
connection can be made to a shared object only).

Author: Julien Rouhaud <rjuju123@gmail.com>
Reviewed-by: Robert Treat <rob@xzilla.net>
This commit is contained in:
Magnus Hagander
2019-04-17 13:51:48 +02:00
parent 9010156445
commit 252b707bc4
4 changed files with 13 additions and 4 deletions
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2
src/test/regress/expected/rules.out
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@ -1806,7 +1806,7 @@ pg_stat_bgwriter| SELECT pg_stat_get_bgwriter_timed_checkpoints() AS checkpoints
pg_stat_database| SELECT d.oid AS datid,
d.datname,
CASE
WHEN (d.oid = (0)::oid) THEN NULL::integer
WHEN (d.oid = (0)::oid) THEN 0
ELSE pg_stat_get_db_numbackends(d.oid)
END AS numbackends,
pg_stat_get_db_xact_commit(d.oid) AS xact_commit,