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/*
* pg_upgrade_support.c
*
* server-side functions to set backend global variables
* to control oid and relfilenode assignment, and do other special
* hacks needed for pg_upgrade.
*
* Copyright (c) 2010-2014, PostgreSQL Global Development Group
* contrib/pg_upgrade_support/pg_upgrade_support.c
*/
#include "postgres.h"
#include "catalog/binary_upgrade.h"
#include "catalog/namespace.h"
#include "catalog/pg_type.h"
#include "commands/extension.h"
#include "miscadmin.h"
#include "utils/array.h"
#include "utils/builtins.h"
/* THIS IS USED ONLY FOR PG >= 9.0 */
#ifdef PG_MODULE_MAGIC
PG_MODULE_MAGIC;
#endif
PG_FUNCTION_INFO_V1(set_next_pg_type_oid);
PG_FUNCTION_INFO_V1(set_next_array_pg_type_oid);
PG_FUNCTION_INFO_V1(set_next_toast_pg_type_oid);
PG_FUNCTION_INFO_V1(set_next_heap_pg_class_oid);
PG_FUNCTION_INFO_V1(set_next_index_pg_class_oid);
PG_FUNCTION_INFO_V1(set_next_toast_pg_class_oid);
PG_FUNCTION_INFO_V1(set_next_pg_enum_oid);
PG_FUNCTION_INFO_V1(set_next_pg_authid_oid);
PG_FUNCTION_INFO_V1(create_empty_extension);
Datum
set_next_pg_type_oid(PG_FUNCTION_ARGS)
{
Oid typoid = PG_GETARG_OID(0);
binary_upgrade_next_pg_type_oid = typoid;
PG_RETURN_VOID();
}
Datum
set_next_array_pg_type_oid(PG_FUNCTION_ARGS)
{
Oid typoid = PG_GETARG_OID(0);
binary_upgrade_next_array_pg_type_oid = typoid;
PG_RETURN_VOID();
}
Datum
set_next_toast_pg_type_oid(PG_FUNCTION_ARGS)
{
Oid typoid = PG_GETARG_OID(0);
binary_upgrade_next_toast_pg_type_oid = typoid;
PG_RETURN_VOID();
}
Datum
set_next_heap_pg_class_oid(PG_FUNCTION_ARGS)
{
Oid reloid = PG_GETARG_OID(0);
binary_upgrade_next_heap_pg_class_oid = reloid;
PG_RETURN_VOID();
}
Datum
set_next_index_pg_class_oid(PG_FUNCTION_ARGS)
{
Oid reloid = PG_GETARG_OID(0);
binary_upgrade_next_index_pg_class_oid = reloid;
PG_RETURN_VOID();
}
Datum
set_next_toast_pg_class_oid(PG_FUNCTION_ARGS)
{
Oid reloid = PG_GETARG_OID(0);
binary_upgrade_next_toast_pg_class_oid = reloid;
PG_RETURN_VOID();
}
Datum
set_next_pg_enum_oid(PG_FUNCTION_ARGS)
{
Oid enumoid = PG_GETARG_OID(0);
binary_upgrade_next_pg_enum_oid = enumoid;
PG_RETURN_VOID();
}
Datum
set_next_pg_authid_oid(PG_FUNCTION_ARGS)
{
Oid authoid = PG_GETARG_OID(0);
binary_upgrade_next_pg_authid_oid = authoid;
PG_RETURN_VOID();
}
Datum
create_empty_extension(PG_FUNCTION_ARGS)
{
text *extName = PG_GETARG_TEXT_PP(0);
text *schemaName = PG_GETARG_TEXT_PP(1);
bool relocatable = PG_GETARG_BOOL(2);
text *extVersion = PG_GETARG_TEXT_PP(3);
Datum extConfig;
Datum extCondition;
List *requiredExtensions;
if (PG_ARGISNULL(4))
extConfig = PointerGetDatum(NULL);
else
extConfig = PG_GETARG_DATUM(4);
if (PG_ARGISNULL(5))
extCondition = PointerGetDatum(NULL);
else
extCondition = PG_GETARG_DATUM(5);
requiredExtensions = NIL;
if (!PG_ARGISNULL(6))
{
ArrayType *textArray = PG_GETARG_ARRAYTYPE_P(6);
Datum *textDatums;
int ndatums;
int i;
deconstruct_array(textArray,
TEXTOID, -1, false, 'i',
&textDatums, NULL, &ndatums);
for (i = 0; i < ndatums; i++)
{
text *txtname = DatumGetTextPP(textDatums[i]);
char *extName = text_to_cstring(txtname);
Oid extOid = get_extension_oid(extName, false);
requiredExtensions = lappend_oid(requiredExtensions, extOid);
}
}
InsertExtensionTuple(text_to_cstring(extName),
GetUserId(),
get_namespace_oid(text_to_cstring(schemaName), false),
relocatable,
text_to_cstring(extVersion),
extConfig,
extCondition,
requiredExtensions);
PG_RETURN_VOID();
}
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