pg_dump: Further reorganize getTableAttrs()
After further discussion after
daa9fe8a5264a3f192efa5ddee8fb011ad9da365, reorder the version-specific
sections from oldest to newest. Also, remove the variable assignments
from PQfnumber() to reduce vertical space.
Reviewed-by: Fabien COELHO <coelho@cri.ensmp.fr>
Discussion: https://www.postgresql.org/message-id/flat/
6594334b-40fd-14f1-6bc5-
877afa3feed5@2ndquadrant.com