pgsql: Add COPY_ARRAY_FIELD and COMPARE_ARRAY_FIELD

Add COPY_ARRAY_FIELD and COMPARE_ARRAY_FIELD

These handle node fields that are inline arrays (as opposed to
dynamically allocated arrays handled by COPY_POINTER_FIELD and
COMPARE_POINTER_FIELD). These cases were hand-coded until now.

Reviewed-by: Jacob Champion <pchampion@vmware.com>
Discussion: /messages/by-id/c091e5cd-45f8-69ee-6a9b-de86912cc7e7@enterprisedb.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/308da179e7c2c41c146e23a1418f6419aee340af

Modified Files
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src/backend/nodes/copyfuncs.c | 11 +++++++----
src/backend/nodes/equalfuncs.c | 7 +++++++
2 files changed, 14 insertions(+), 4 deletions(-)