From 3d009e45bde2a2681826ef549637ada76508b597 Mon Sep 17 00:00:00 2001 From: Heikki Linnakangas Date: Wed, 27 Feb 2013 18:17:21 +0200 Subject: Add support for piping COPY to/from an external program. This includes backend "COPY TO/FROM PROGRAM '...'" syntax, and corresponding psql \copy syntax. Like with reading/writing files, the backend version is superuser-only, and in the psql version, the program is run in the client. In the passing, the psql \copy STDIN/STDOUT syntax is subtly changed: if you the stdin/stdout is quoted, it's now interpreted as a filename. For example, "\copy foo from 'stdin'" now reads from a file called 'stdin', not from standard input. Before this, there was no way to specify a filename called stdin, stdout, pstdin or pstdout. This creates a new function in pgport, wait_result_to_str(), which can be used to convert the exit status of a process, as returned by wait(3), to a human-readable string. Etsuro Fujita, reviewed by Amit Kapila. --- src/include/commands/copy.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/include/commands') diff --git a/src/include/commands/copy.h b/src/include/commands/copy.h index 725c277ecfd..5860e4cf6b2 100644 --- a/src/include/commands/copy.h +++ b/src/include/commands/copy.h @@ -26,7 +26,7 @@ extern Oid DoCopy(const CopyStmt *stmt, const char *queryString, extern void ProcessCopyOptions(CopyState cstate, bool is_from, List *options); extern CopyState BeginCopyFrom(Relation rel, const char *filename, - List *attnamelist, List *options); + bool is_program, List *attnamelist, List *options); extern void EndCopyFrom(CopyState cstate); extern bool NextCopyFrom(CopyState cstate, ExprContext *econtext, Datum *values, bool *nulls, Oid *tupleOid); -- cgit v1.2.3