[pgpool-committers: 10208] pgpool: Test: add test for COPY FROM STDIN hang.

[Tatsuo Ishii]

Test: add test for COPY FROM STDIN hang.

This is a follow up commit for commit:
ab091663b09ef8c2d0a1841921597948c597444e

Add test case using pgproto to existing 076.copy_hang.
Backpatch-through: v4.1

Branch
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V4_2_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=fab1574065c97b0bcd1e20a72af2f00913cf249e

Modified Files
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src/test/regression/tests/076.copy_hang/pgproto.data |  9 +++++++++
src/test/regression/tests/076.copy_hang/test.sh      | 17 +++++++++++++++--
2 files changed, 24 insertions(+), 2 deletions(-)