Thread: pgsql: Force hash joins to be enabled in the hash join regressiontests

Force hash joins to be enabled in the hash join regression tests.

Otherwise the regressplans.sh tests generate extremely slow nested
loop joins.  Back-patch to 11 where the hash join tests came in.

Reported-by: Michael Paquier
Discussion: https://postgr.es/m/20190708055256.GB2709%40paquier.xyz

Branch
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REL_12_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/5526baf54902a56c5bc1b4abe625acb33d7357bf

Modified Files
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src/test/regress/expected/join_hash.out | 1 +
src/test/regress/sql/join_hash.sql      | 1 +
2 files changed, 2 insertions(+)