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Robert Haas da7d44b627 postgres_fdw: Clean up handling of system columns. ... Previously, querying the xmin column of a single postgres_fdw foreign table fetched the tuple length, xmax the typmod, and cmin or cmax the composite type OID of the tuple. However, when you queried several such tables and the join got shipped to the remote side, these columns ended up containing the remote values of the corresponding columns. Both behaviors are rather unprincipled, the former for obvious reasons and the latter because the remote values of these columns don't have any local significance; our transaction IDs are in a different space than those of the remote machine. Clean this up by setting all of these fields to 0 in both cases. Also fix the handling of tableoid to be sane. Robert Haas and Ashutosh Bapat, reviewed by Etsuro Fujita.		9 years ago
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expected	postgres_fdw: Clean up handling of system columns.	9 years ago
sql	Don't require a user mapping for FDWs to work.	9 years ago
.gitignore	Add postgres_fdw contrib module.	13 years ago
Makefile	Allow postgres_fdw to ship extension funcs/operators for remote execution.	10 years ago
connection.c	Use %u not %d to print OIDs.	10 years ago
deparse.c	postgres_fdw: Clean up handling of system columns.	9 years ago
option.c	postgres_fdw: Allow fetch_size to be set per-table or per-server.	10 years ago
postgres_fdw--1.0.sql	Add postgres_fdw contrib module.	13 years ago
postgres_fdw.c	postgres_fdw: Clean up handling of system columns.	9 years ago
postgres_fdw.control	Add postgres_fdw contrib module.	13 years ago
postgres_fdw.h	Directly modify foreign tables.	9 years ago
shippable.c	Update copyright for 2016	10 years ago