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Attached is a fairly sizeable update to contrib/dblink. I'd love to get

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review/feedback if anyone is interested and can spend the time. But I'd
also love to get this committed and address changes as incremental
patches ;-), so if there are no objections, please apply.

Below I'll give a synopsis of the changes. More detailed descriptions
are now in a new doc directory under contrib/dblink. There is also a new

dblink.test.sql file which will give a pretty good overview of the
functions and their use.

Joe Conway
This commit is contained in:
Bruce Momjian
2002-09-02 06:13:31 +00:00
parent a12b4e279b
commit 7b8eb0b4f1
5 changed files with 965 additions and 717 deletions
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72
contrib/dblink/dblink.h
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@ -3,7 +3,9 @@
*
* Functions returning results from a remote database
*
* Copyright (c) Joseph Conway <mail@joeconway.com>, 2001, 2002,
* Joe Conway <mail@joeconway.com>
*
* Copyright (c) 2001, 2002 by PostgreSQL Global Development Group
* ALL RIGHTS RESERVED;
*
* Permission to use, copy, modify, and distribute this software and its
@ -28,38 +30,6 @@
#ifndef DBLINK_H
#define DBLINK_H
#include <string.h>
#include "postgres.h"
#include "libpq-fe.h"
#include "libpq-int.h"
#include "fmgr.h"
#include "access/tupdesc.h"
#include "access/heapam.h"
#include "catalog/catname.h"
#include "catalog/pg_index.h"
#include "catalog/pg_type.h"
#include "executor/executor.h"
#include "executor/spi.h"
#include "lib/stringinfo.h"
#include "nodes/nodes.h"
#include "nodes/execnodes.h"
#include "nodes/pg_list.h"
#include "parser/parse_type.h"
#include "tcop/tcopprot.h"
#include "utils/builtins.h"
#include "utils/fmgroids.h"
#include "utils/array.h"
#include "utils/syscache.h"
#ifdef NamespaceRelationName
#include "catalog/namespace.h"
#endif /* NamespaceRelationName */
/*
* Max SQL statement size
*/
#define DBLINK_MAX_SQLSTATE_SIZE 16384
/*
* This struct holds the results of the remote query.
* Use fn_extra to hold a pointer to it across calls
@ -82,43 +52,27 @@ typedef struct
PGresult *res;
} dblink_results;
/*
* This struct holds results in the form of an array.
* Use fn_extra to hold a pointer to it across calls
*/
typedef struct
{
/*
* elem being accessed
*/
int elem_num;
/*
* number of elems
*/
int num_elems;
/*
* the actual array
*/
void *res;
} dblink_array_results;
/*
* External declarations
*/
/* deprecated */
extern Datum dblink(PG_FUNCTION_ARGS);
extern Datum dblink_tok(PG_FUNCTION_ARGS);
extern Datum dblink_strtok(PG_FUNCTION_ARGS);
/* supported */
extern Datum dblink_connect(PG_FUNCTION_ARGS);
extern Datum dblink_disconnect(PG_FUNCTION_ARGS);
extern Datum dblink_open(PG_FUNCTION_ARGS);
extern Datum dblink_close(PG_FUNCTION_ARGS);
extern Datum dblink_fetch(PG_FUNCTION_ARGS);
extern Datum dblink_record(PG_FUNCTION_ARGS);
extern Datum dblink_exec(PG_FUNCTION_ARGS);
extern Datum dblink_get_pkey(PG_FUNCTION_ARGS);
extern Datum dblink_last_oid(PG_FUNCTION_ARGS);
extern Datum dblink_build_sql_insert(PG_FUNCTION_ARGS);
extern Datum dblink_build_sql_delete(PG_FUNCTION_ARGS);
extern Datum dblink_build_sql_update(PG_FUNCTION_ARGS);
extern Datum dblink_current_query(PG_FUNCTION_ARGS);
extern Datum dblink_replace_text(PG_FUNCTION_ARGS);
extern char *debug_query_string;