[pgpool-committers: 4013] pgpool: Add node 0 failover test.

[Tatsuo Ishii]

Add node 0 failover test.

Previously only node 1 failover test is performed in 003.failover.

Branch
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V3_6_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=eb83f0b498e044c9e54a6212ab991102367965d9

Modified Files
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src/test/regression/libs.sh                         | 21 +++++++++++++++++++++
.../tests/003.failover/create_expected_node0.sql    | 21 +++++++++++++++++++++
src/test/regression/tests/003.failover/test.sh      | 20 ++++++++++++++++++--
3 files changed, 60 insertions(+), 2 deletions(-)