[pgpool-committers: 6637] pgpool: Add regression test for previous commit.

[Tatsuo Ishii]

Add regression test for previous commit.

Branch
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V4_0_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=5f0ca48266c4a4b42793e7d611802b78f1c5e435

Modified Files
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.../072.meqcache_bug2/extended_query_test.data     | 24 ++++++++++++++++
.../regression/tests/072.meqcache_bug2/test.sh     | 32 ++++++++++++++++++++++
2 files changed, 56 insertions(+)