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postgres/src/include/access/printsimple.h

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Add a new DestReceiver for printing tuples without catalog access. If you create a DestReciver of type DestRemote and try to use it from a replication connection that is not bound to a specific daabase, or any other hypothetical type of backend that is not bound to a specific database, it will fail because it doesn't have a pg_proc catalog to look up properties of the types being printed. In general, that's an unavoidable problem, but we can hardwire the properties of a few builtin types in order to support utility commands. This new DestReceiver of type DestRemoteSimple does just that. Patch by me, reviewed by Michael Paquier. Discussion: http://postgr.es/m/CA+TgmobNo4qz06wHEmy9DszAre3dYx-WNhHSCbU9SAwf+9Ft6g@mail.gmail.com
9 years ago
/*-------------------------------------------------------------------------
*
* printsimple.h
* print simple tuples without catalog access
*
* Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/access/printsimple.h
*
*-------------------------------------------------------------------------
*/
#ifndef PRINTSIMPLE_H
#define PRINTSIMPLE_H
#include "tcop/dest.h"
extern bool printsimple(TupleTableSlot *slot, DestReceiver *self);
extern void printsimple_startup(DestReceiver *self, int operation,
TupleDesc tupdesc);
#endif /* PRINTSIMPLE_H */