pgsql: Doc: Update documentation for modifying postgres_fdw foreign tab

Doc: Update documentation for modifying postgres_fdw foreign tables. Document that they can be modified using COPY as well. Back-patch to v11 where commit 3d956d956 added support for COPY in postgres_fdw. Branch -- REL_14_STABLE Details --- https://git.postgresql.org/pg/commitdiff/a9e18

pgsql: Doc: Update documentation for modifying postgres_fdw foreign tab

Doc: Update documentation for modifying postgres_fdw foreign tables. Document that they can be modified using COPY as well. Back-patch to v11 where commit 3d956d956 added support for COPY in postgres_fdw. Branch -- REL_12_STABLE Details --- https://git.postgresql.org/pg/commitdiff/af2d4

pgsql: Doc: Update documentation for modifying postgres_fdw foreign tab

Doc: Update documentation for modifying postgres_fdw foreign tables. Document that they can be modified using COPY as well. Back-patch to v11 where commit 3d956d956 added support for COPY in postgres_fdw. Branch -- master Details --- https://git.postgresql.org/pg/commitdiff/27d195a57849

pgsql: Doc: Update documentation for modifying postgres_fdw foreign tab

Doc: Update documentation for modifying postgres_fdw foreign tables. Document that they can be modified using COPY as well. Back-patch to v11 where commit 3d956d956 added support for COPY in postgres_fdw. Branch -- REL_11_STABLE Details --- https://git.postgresql.org/pg/commitdiff/48bf7

pgsql: Doc: Update documentation for modifying postgres_fdw foreign tab

Doc: Update documentation for modifying postgres_fdw foreign tables. Document that they can be modified using COPY as well. Back-patch to v11 where commit 3d956d956 added support for COPY in postgres_fdw. Branch -- REL_13_STABLE Details --- https://git.postgresql.org/pg/commitdiff/0dc02