pgsql: COPY: use pg_plan_query() instead of planner()

COPY: use pg_plan_query() instead of planner()

While at it, trim the includes list in copy.c.  The planner headers
cannot be removed, but there are a few others that are not of any use.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/590e2d12f0e17aed39a64050f2dddc0d9f56c1ba

Modified Files
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src/backend/commands/copy.c |    5 +----
1 file changed, 1 insertion(+), 4 deletions(-)