brin_pageops.h

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/*
 * brin_pageops.h
 *      Prototypes for operating on BRIN pages.
 *
 * Portions Copyright (c) 1996-2026, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * IDENTIFICATION
 *    src/include/access/brin_pageops.h
 */
#ifndef BRIN_PAGEOPS_H
#define BRIN_PAGEOPS_H
 
#include "access/brin_revmap.h"
 
extern bool brin_doupdate(Relation idxrel, BlockNumber pagesPerRange,
                          BrinRevmap *revmap, BlockNumber heapBlk,
                          Buffer oldbuf, OffsetNumber oldoff,
                          const BrinTuple *origtup, Size origsz,
                          const BrinTuple *newtup, Size newsz,
                          bool samepage);
extern bool brin_can_do_samepage_update(Buffer buffer, Size origsz,
                                        Size newsz);
extern OffsetNumber brin_doinsert(Relation idxrel, BlockNumber pagesPerRange,
                                  BrinRevmap *revmap, Buffer *buffer, BlockNumber heapBlk,
                                  const BrinTuple *tup, Size itemsz);
 
extern void brin_page_init(Page page, uint16 type);
extern void brin_metapage_init(Page page, BlockNumber pagesPerRange,
                               uint16 version);
 
extern bool brin_start_evacuating_page(Relation idxRel, Buffer buf);
extern void brin_evacuate_page(Relation idxRel, BlockNumber pagesPerRange,
                               BrinRevmap *revmap, Buffer buf);
 
extern void brin_page_cleanup(Relation idxrel, Buffer buf);
 
#endif                          /* BRIN_PAGEOPS_H */