Add new FDW API to test for parallel-safety. This is basically a bug fix; the old code assumes that a ForeignScan is always parallel-safe, but for postgres_fdw, for example, this is definitely false. It should be true for file_fdw, though, since a worker can read a file from the filesystem just as well as any other backend process.
Original patch by Thomas Munro. Documentation, and changes to the comments, by me. Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/35746bc348b6bf1f690fe17f4f80cfb68e22f504 Modified Files -------------- contrib/file_fdw/file_fdw.c | 15 +++++++++++++++ doc/src/sgml/fdwhandler.sgml | 23 +++++++++++++++++++++++ src/backend/optimizer/path/allpaths.c | 17 +++++++++++++++++ src/include/foreign/fdwapi.h | 5 +++++ 4 files changed, 60 insertions(+) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
