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/*
* pg_upgrade_support.c
*
* server-side functions to set backend global variables
* to control oid and relfilenumber assignment, and do other special
* hacks needed for pg_upgrade.
*
* Copyright (c) 2010-2023, PostgreSQL Global Development Group
* src/backend/utils/adt/pg_upgrade_support.c
*/
#include "postgres.h"
#include "catalog/binary_upgrade.h"
#include "catalog/heap.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"
#define CHECK_IS_BINARY_UPGRADE \
do { \
if (!IsBinaryUpgrade) \
ereport(ERROR, \
(errcode(ERRCODE_CANT_CHANGE_RUNTIME_PARAM), \
errmsg("function can only be called when server is in binary upgrade mode"))); \
} while (0)
Datum
binary_upgrade_set_next_pg_tablespace_oid(PG_FUNCTION_ARGS)
{
Oid tbspoid = PG_GETARG_OID(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_next_pg_tablespace_oid = tbspoid;
PG_RETURN_VOID();
}
Datum
binary_upgrade_set_next_pg_type_oid(PG_FUNCTION_ARGS)
{
Oid typoid = PG_GETARG_OID(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_next_pg_type_oid = typoid;
PG_RETURN_VOID();
}
Datum
binary_upgrade_set_next_array_pg_type_oid(PG_FUNCTION_ARGS)
{
Oid typoid = PG_GETARG_OID(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_next_array_pg_type_oid = typoid;
PG_RETURN_VOID();
}
Datum
binary_upgrade_set_next_multirange_pg_type_oid(PG_FUNCTION_ARGS)
{
Oid typoid = PG_GETARG_OID(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_next_mrng_pg_type_oid = typoid;
PG_RETURN_VOID();
}
Datum
binary_upgrade_set_next_multirange_array_pg_type_oid(PG_FUNCTION_ARGS)
{
Oid typoid = PG_GETARG_OID(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_next_mrng_array_pg_type_oid = typoid;
PG_RETURN_VOID();
}
Datum
binary_upgrade_set_next_heap_pg_class_oid(PG_FUNCTION_ARGS)
{
Oid reloid = PG_GETARG_OID(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_next_heap_pg_class_oid = reloid;
PG_RETURN_VOID();
}
Datum
binary_upgrade_set_next_heap_relfilenode(PG_FUNCTION_ARGS)
{
RelFileNumber relfilenumber = PG_GETARG_OID(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_next_heap_pg_class_relfilenumber = relfilenumber;
PG_RETURN_VOID();
}
Datum
binary_upgrade_set_next_index_pg_class_oid(PG_FUNCTION_ARGS)
{
Oid reloid = PG_GETARG_OID(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_next_index_pg_class_oid = reloid;
PG_RETURN_VOID();
}
Datum
binary_upgrade_set_next_index_relfilenode(PG_FUNCTION_ARGS)
{
RelFileNumber relfilenumber = PG_GETARG_OID(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_next_index_pg_class_relfilenumber = relfilenumber;
PG_RETURN_VOID();
}
Datum
binary_upgrade_set_next_toast_pg_class_oid(PG_FUNCTION_ARGS)
{
Oid reloid = PG_GETARG_OID(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_next_toast_pg_class_oid = reloid;
PG_RETURN_VOID();
}
Datum
binary_upgrade_set_next_toast_relfilenode(PG_FUNCTION_ARGS)
{
RelFileNumber relfilenumber = PG_GETARG_OID(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_next_toast_pg_class_relfilenumber = relfilenumber;
PG_RETURN_VOID();
}
Datum
binary_upgrade_set_next_pg_enum_oid(PG_FUNCTION_ARGS)
{
Oid enumoid = PG_GETARG_OID(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_next_pg_enum_oid = enumoid;
PG_RETURN_VOID();
}
Datum
binary_upgrade_set_next_pg_authid_oid(PG_FUNCTION_ARGS)
{
Oid authoid = PG_GETARG_OID(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_next_pg_authid_oid = authoid;
PG_RETURN_VOID();
}
Datum
binary_upgrade_create_empty_extension(PG_FUNCTION_ARGS)
{
text *extName;
text *schemaName;
bool relocatable;
text *extVersion;
Datum extConfig;
Datum extCondition;
List *requiredExtensions;
CHECK_IS_BINARY_UPGRADE;
/* We must check these things before dereferencing the arguments */
if (PG_ARGISNULL(0) ||
PG_ARGISNULL(1) ||
PG_ARGISNULL(2) ||
PG_ARGISNULL(3))
elog(ERROR, "null argument to binary_upgrade_create_empty_extension is not allowed");
extName = PG_GETARG_TEXT_PP(0);
schemaName = PG_GETARG_TEXT_PP(1);
relocatable = PG_GETARG_BOOL(2);
extVersion = PG_GETARG_TEXT_PP(3);
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_builtin(textArray, TEXTOID, &textDatums, NULL, &ndatums);
for (i = 0; i < ndatums; i++)
{
char *extName = TextDatumGetCString(textDatums[i]);
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();
}
Datum
binary_upgrade_set_record_init_privs(PG_FUNCTION_ARGS)
{
bool record_init_privs = PG_GETARG_BOOL(0);
CHECK_IS_BINARY_UPGRADE;
binary_upgrade_record_init_privs = record_init_privs;
PG_RETURN_VOID();
}
Datum
binary_upgrade_set_missing_value(PG_FUNCTION_ARGS)
{
Oid table_id = PG_GETARG_OID(0);
text *attname = PG_GETARG_TEXT_P(1);
text *value = PG_GETARG_TEXT_P(2);
char *cattname = text_to_cstring(attname);
char *cvalue = text_to_cstring(value);
CHECK_IS_BINARY_UPGRADE;
SetAttrMissing(table_id, cattname, cvalue);
PG_RETURN_VOID();
}
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