[pgpool-committers: 8639] pgpool: Add volatile modifier to a variable used in the query cache mod

[Tatsuo Ishii]

Add volatile modifier to a variable used in the query cache module.

"sts" variable used in pool_fetch_memory_cache() did not have volatile
modifier although it is used in PG_TRY() block. If an exception arises
the value set to variable will be lost in the PG_CATCH block. The bad
effect of this will not be triggered unless error occurs and I think
the bad effect has rarely been observed in the wild (as for as I know,
I have never heard such a report). Anyway, bug is bug.

Branch
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V4_0_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=078c7be564d916108c7ca1ac50f035a59b4849be

Modified Files
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src/query_cache/pool_memqcache.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)