pgsql: Update DECLARE_INDEX documentation

Update DECLARE_INDEX documentation Update source code comment changes belonging to the changes in 6a6389a08b. Discussion: https://www.postgresql.org/message-id/flat/[email protected] Branch -- REL_15_STABLE Details --- https://git.postgresql.org/pg/com

pgsql: Update DECLARE_INDEX documentation

Update DECLARE_INDEX documentation Update source code comment changes belonging to the changes in 6a6389a08b. Discussion: https://www.postgresql.org/message-id/flat/[email protected] Branch -- master Details --- https://git.postgresql.org/pg/commitdiff

pgsql: Update DECLARE_INDEX documentation

Update DECLARE_INDEX documentation Update source code comment changes belonging to the changes in 6a6389a08b. Discussion: https://www.postgresql.org/message-id/flat/[email protected] Branch -- REL_16_STABLE Details --- https://git.postgresql.org/pg/com