partition.h
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/*-------------------------------------------------------------------------
*
* partition.h
* Header file for structures and utility functions related to
* partitioning
*
* Copyright (c) 2007-2018, PostgreSQL Global Development Group
*
* src/include/catalog/partition.h
*
*-------------------------------------------------------------------------
*/
#ifndef PARTITION_H
#define PARTITION_H
#include "fmgr.h"
#include "partitioning/partdefs.h"
#include "utils/relcache.h"
/* Seed for the extended hash function */
#define HASH_PARTITION_SEED UINT64CONST(0x7A5B22367996DCFD)
/*
* Information about partitions of a partitioned table.
*/
typedef struct PartitionDescData
{
int nparts; /* Number of partitions */
Oid *oids; /* OIDs of partitions */
PartitionBoundInfo boundinfo; /* collection of partition bounds */
} PartitionDescData;
extern Oid get_partition_parent(Oid relid);
extern List *get_partition_ancestors(Oid relid);
extern List *map_partition_varattnos(List *expr, int fromrel_varno,
Relation to_rel, Relation from_rel,
bool *found_whole_row);
extern bool has_partition_attrs(Relation rel, Bitmapset *attnums,
bool *used_in_expr);
extern Oid get_default_oid_from_partdesc(PartitionDesc partdesc);
extern Oid get_default_partition_oid(Oid parentId);
extern void update_default_partition_oid(Oid parentId, Oid defaultPartId);
extern List *get_proposed_default_constraint(List *new_part_constaints);
#endif /* PARTITION_H */