greenplumn brindesc 源码

  • 2022-08-18
  • 浏览 (302)

greenplumn brindesc 代码

文件路径:/src/backend/access/rmgrdesc/brindesc.c

/*-------------------------------------------------------------------------
 *
 * brindesc.c
 *	  rmgr descriptor routines for BRIN indexes
 *
 * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 *
 * IDENTIFICATION
 *	  src/backend/access/rmgrdesc/brindesc.c
 *
 *-------------------------------------------------------------------------
 */
#include "postgres.h"

#include "access/brin_xlog.h"

void
brin_desc(StringInfo buf, XLogReaderState *record)
{
	char	   *rec = XLogRecGetData(record);
	uint8		info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;

	info &= XLOG_BRIN_OPMASK;
	if (info == XLOG_BRIN_CREATE_INDEX)
	{
		xl_brin_createidx *xlrec = (xl_brin_createidx *) rec;

		appendStringInfo(buf, "v%d pagesPerRange %u",
						 xlrec->version, xlrec->pagesPerRange);
	}
	else if (info == XLOG_BRIN_INSERT)
	{
		xl_brin_insert *xlrec = (xl_brin_insert *) rec;

		appendStringInfo(buf, "heapBlk %u pagesPerRange %u offnum %u",
						 xlrec->heapBlk,
						 xlrec->pagesPerRange,
						 xlrec->offnum);
	}
	else if (info == XLOG_BRIN_UPDATE)
	{
		xl_brin_update *xlrec = (xl_brin_update *) rec;

		appendStringInfo(buf, "heapBlk %u pagesPerRange %u old offnum %u, new offnum %u",
						 xlrec->insert.heapBlk,
						 xlrec->insert.pagesPerRange,
						 xlrec->oldOffnum,
						 xlrec->insert.offnum);
	}
	else if (info == XLOG_BRIN_SAMEPAGE_UPDATE)
	{
		xl_brin_samepage_update *xlrec = (xl_brin_samepage_update *) rec;

		appendStringInfo(buf, "offnum %u", xlrec->offnum);
	}
	else if (info == XLOG_BRIN_REVMAP_EXTEND)
	{
		xl_brin_revmap_extend *xlrec = (xl_brin_revmap_extend *) rec;

		appendStringInfo(buf, "targetBlk %u", xlrec->targetBlk);
	}
	else if (info == XLOG_BRIN_DESUMMARIZE)
	{
		xl_brin_desummarize *xlrec = (xl_brin_desummarize *) rec;

		appendStringInfo(buf, "pagesPerRange %u, heapBlk %u, page offset %u",
						 xlrec->pagesPerRange, xlrec->heapBlk, xlrec->regOffset);
	}
}

const char *
brin_identify(uint8 info)
{
	const char *id = NULL;

	switch (info & ~XLR_INFO_MASK)
	{
		case XLOG_BRIN_CREATE_INDEX:
			id = "CREATE_INDEX";
			break;
		case XLOG_BRIN_INSERT:
			id = "INSERT";
			break;
		case XLOG_BRIN_INSERT | XLOG_BRIN_INIT_PAGE:
			id = "INSERT+INIT";
			break;
		case XLOG_BRIN_UPDATE:
			id = "UPDATE";
			break;
		case XLOG_BRIN_UPDATE | XLOG_BRIN_INIT_PAGE:
			id = "UPDATE+INIT";
			break;
		case XLOG_BRIN_SAMEPAGE_UPDATE:
			id = "SAMEPAGE_UPDATE";
			break;
		case XLOG_BRIN_REVMAP_EXTEND:
			id = "REVMAP_EXTEND";
			break;
		case XLOG_BRIN_DESUMMARIZE:
			id = "DESUMMARIZE";
			break;
	}

	return id;
}

相关信息

greenplumn 源码目录

相关文章

greenplumn appendonlydesc 源码

greenplumn bitmapdesc 源码

greenplumn clogdesc 源码

greenplumn committsdesc 源码

greenplumn dbasedesc 源码

greenplumn distributedlogdesc 源码

greenplumn genericdesc 源码

greenplumn gindesc 源码

greenplumn gistdesc 源码

greenplumn hashdesc 源码

0  赞