pg_parse 0.12.0

PostgreSQL parser that uses the actual PostgreSQL server source to parse SQL queries and return the internal PostgreSQL parse tree.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35

/*-------------------------------------------------------------------------
 *
 * walsummarizer.h
 *
 * Header file for background WAL summarization process.
 *
 * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
 *
 * IDENTIFICATION
 *	  src/include/postmaster/walsummarizer.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef WALSUMMARIZER_H
#define WALSUMMARIZER_H

#include "access/xlogdefs.h"

extern PGDLLIMPORT bool summarize_wal;
extern PGDLLIMPORT int wal_summary_keep_time;

extern Size WalSummarizerShmemSize(void);
extern void WalSummarizerShmemInit(void);
extern void WalSummarizerMain(char *startup_data, size_t startup_data_len) pg_attribute_noreturn();

extern void GetWalSummarizerState(TimeLineID *summarized_tli,
								  XLogRecPtr *summarized_lsn,
								  XLogRecPtr *pending_lsn,
								  int *summarizer_pid);
extern XLogRecPtr GetOldestUnsummarizedLSN(TimeLineID *tli,
										   bool *lsn_is_exact);
extern void SetWalSummarizerLatch(void);
extern void WaitForWalSummarization(XLogRecPtr lsn);

#endif