Un-Windows-ify newlines.
This commit is contained in:
Tom Lane
parent
2a4fad1a0e
commit
35c4764f88
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@ -1,461 +1,461 @@
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/*
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* dbsize.c
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* object size functions
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*
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* Copyright (c) 2002-2005, PostgreSQL Global Development Group
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/utils/adt/dbsize.c,v 1.1 2005/07/29 14:46:57 momjian Exp $
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*
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*/
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#include "postgres.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "access/heapam.h"
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#include "catalog/namespace.h"
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#include "catalog/pg_tablespace.h"
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#include "commands/dbcommands.h"
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#include "commands/tablespace.h"
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#include "miscadmin.h"
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#include "storage/fd.h"
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#include "utils/builtins.h"
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#include "utils/syscache.h"
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#include "utils/relcache.h"
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/* Return physical size of directory contents, or 0 if dir doesn't exist */
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static int64
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db_dir_size(const char *path)
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{
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int64 dirsize = 0;
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struct dirent *direntry;
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DIR *dirdesc;
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char filename[MAXPGPATH];
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dirdesc = AllocateDir(path);
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if (!dirdesc)
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return 0;
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while ((direntry = readdir(dirdesc)) != NULL)
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{
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struct stat fst;
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if (strcmp(direntry->d_name, ".") == 0 ||
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strcmp(direntry->d_name, "..") == 0)
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continue;
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snprintf(filename, MAXPGPATH, "%s/%s", path, direntry->d_name);
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if (stat(filename, &fst) < 0)
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ereport(ERROR,
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(errcode_for_file_access(),
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errmsg("could not stat \"%s\": %m", filename)));
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dirsize += fst.st_size;
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}
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FreeDir(dirdesc);
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return dirsize;
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}
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/*
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* calculate size of database in all tablespaces
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*/
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static int64
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calculate_database_size(Oid dbOid)
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{
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int64 totalsize = 0;
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DIR *dirdesc;
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struct dirent *direntry;
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char pathname[MAXPGPATH];
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/* Shared storage in pg_global is not counted */
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/* Include pg_default storage */
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snprintf(pathname, MAXPGPATH, "%s/base/%u", DataDir, dbOid);
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totalsize += db_dir_size(pathname);
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/* Scan the non-default tablespaces */
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snprintf(pathname, MAXPGPATH, "%s/pg_tblspc", DataDir);
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dirdesc = AllocateDir(pathname);
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if (!dirdesc)
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ereport(ERROR,
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(errcode_for_file_access(),
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errmsg("could not open tablespace directory \"%s\": %m",
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pathname)));
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while ((direntry = readdir(dirdesc)) != NULL)
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{
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if (strcmp(direntry->d_name, ".") == 0 ||
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strcmp(direntry->d_name, "..") == 0)
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continue;
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snprintf(pathname, MAXPGPATH, "%s/pg_tblspc/%s/%u",
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DataDir, direntry->d_name, dbOid);
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totalsize += db_dir_size(pathname);
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}
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FreeDir(dirdesc);
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/* Complain if we found no trace of the DB at all */
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if (!totalsize)
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ereport(ERROR,
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(ERRCODE_UNDEFINED_DATABASE,
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errmsg("database with OID %u does not exist", dbOid)));
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return totalsize;
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}
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Datum
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pg_database_size_oid(PG_FUNCTION_ARGS)
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{
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Oid dbOid = PG_GETARG_OID(0);
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PG_RETURN_INT64(calculate_database_size(dbOid));
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}
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Datum
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pg_database_size_name(PG_FUNCTION_ARGS)
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{
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Name dbName = PG_GETARG_NAME(0);
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Oid dbOid = get_database_oid(NameStr(*dbName));
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if (!OidIsValid(dbOid))
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ereport(ERROR,
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(errcode(ERRCODE_UNDEFINED_DATABASE),
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errmsg("database \"%s\" does not exist",
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NameStr(*dbName))));
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PG_RETURN_INT64(calculate_database_size(dbOid));
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}
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/*
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* calculate total size of tablespace
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*/
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static int64
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calculate_tablespace_size(Oid tblspcOid)
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{
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char tblspcPath[MAXPGPATH];
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char pathname[MAXPGPATH];
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int64 totalsize=0;
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DIR *dirdesc;
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struct dirent *direntry;
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if (tblspcOid == DEFAULTTABLESPACE_OID)
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snprintf(tblspcPath, MAXPGPATH, "%s/base", DataDir);
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else if (tblspcOid == GLOBALTABLESPACE_OID)
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snprintf(tblspcPath, MAXPGPATH, "%s/global", DataDir);
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else
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snprintf(tblspcPath, MAXPGPATH, "%s/pg_tblspc/%u", DataDir, tblspcOid);
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dirdesc = AllocateDir(tblspcPath);
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if (!dirdesc)
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ereport(ERROR,
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(errcode_for_file_access(),
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errmsg("could not open tablespace directory \"%s\": %m",
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tblspcPath)));
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while ((direntry = readdir(dirdesc)) != NULL)
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{
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struct stat fst;
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if (strcmp(direntry->d_name, ".") == 0 ||
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strcmp(direntry->d_name, "..") == 0)
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continue;
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snprintf(pathname, MAXPGPATH, "%s/%s", tblspcPath, direntry->d_name);
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if (stat(pathname, &fst) < 0)
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ereport(ERROR,
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(errcode_for_file_access(),
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errmsg("could not stat \"%s\": %m", pathname)));
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if (fst.st_mode & S_IFDIR)
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totalsize += db_dir_size(pathname);
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totalsize += fst.st_size;
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}
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FreeDir(dirdesc);
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return totalsize;
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}
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Datum
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pg_tablespace_size_oid(PG_FUNCTION_ARGS)
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{
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Oid tblspcOid = PG_GETARG_OID(0);
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PG_RETURN_INT64(calculate_tablespace_size(tblspcOid));
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}
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Datum
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pg_tablespace_size_name(PG_FUNCTION_ARGS)
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{
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Name tblspcName = PG_GETARG_NAME(0);
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Oid tblspcOid = get_tablespace_oid(NameStr(*tblspcName));
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if (!OidIsValid(tblspcOid))
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ereport(ERROR,
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(errcode(ERRCODE_UNDEFINED_OBJECT),
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errmsg("tablespace \"%s\" does not exist",
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NameStr(*tblspcName))));
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PG_RETURN_INT64(calculate_tablespace_size(tblspcOid));
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}
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/*
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* calculate size of a relation
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*/
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static int64
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calculate_relation_size(Oid tblspcOid, Oid relnodeOid)
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{
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int64 totalsize=0;
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unsigned int segcount=0;
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char dirpath[MAXPGPATH];
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char pathname[MAXPGPATH];
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if (!tblspcOid)
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tblspcOid = MyDatabaseTableSpace;
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if (tblspcOid == DEFAULTTABLESPACE_OID)
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snprintf(dirpath, MAXPGPATH, "%s/base/%u", DataDir, MyDatabaseId);
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else if (tblspcOid == GLOBALTABLESPACE_OID)
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snprintf(dirpath, MAXPGPATH, "%s/global", DataDir);
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else
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snprintf(dirpath, MAXPGPATH, "%s/pg_tblspc/%u/%u",
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DataDir, tblspcOid, MyDatabaseId);
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for (segcount = 0 ;; segcount++)
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{
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struct stat fst;
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if (segcount == 0)
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snprintf(pathname, MAXPGPATH, "%s/%u",
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dirpath, relnodeOid);
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else
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snprintf(pathname, MAXPGPATH, "%s/%u.%u",
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dirpath, relnodeOid, segcount);
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if (stat(pathname, &fst) < 0)
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{
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if (errno == ENOENT)
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break;
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else
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ereport(ERROR,
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(errcode_for_file_access(),
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errmsg("could not stat \"%s\": %m", pathname)));
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}
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totalsize += fst.st_size;
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}
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return totalsize;
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}
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Datum
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pg_relation_size_oid(PG_FUNCTION_ARGS)
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{
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Oid relOid=PG_GETARG_OID(0);
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HeapTuple tuple;
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Form_pg_class pg_class;
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Oid relnodeOid;
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Oid tblspcOid;
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tuple = SearchSysCache(RELOID,
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ObjectIdGetDatum(relOid),
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0, 0, 0);
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if (!HeapTupleIsValid(tuple))
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ereport(ERROR,
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(ERRCODE_UNDEFINED_TABLE,
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errmsg("relation with OID %u does not exist", relOid)));
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pg_class = (Form_pg_class) GETSTRUCT(tuple);
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relnodeOid = pg_class->relfilenode;
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tblspcOid = pg_class->reltablespace;
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ReleaseSysCache(tuple);
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PG_RETURN_INT64(calculate_relation_size(tblspcOid, relnodeOid));
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}
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Datum
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pg_relation_size_name(PG_FUNCTION_ARGS)
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{
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text *relname = PG_GETARG_TEXT_P(0);
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RangeVar *relrv;
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Relation relation;
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Oid relnodeOid;
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Oid tblspcOid;
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relrv = makeRangeVarFromNameList(textToQualifiedNameList(relname));
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relation = relation_openrv(relrv, AccessShareLock);
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tblspcOid = relation->rd_rel->reltablespace;
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relnodeOid = relation->rd_rel->relfilenode;
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relation_close(relation, AccessShareLock);
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PG_RETURN_INT64(calculate_relation_size(tblspcOid, relnodeOid));
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}
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/*
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* Compute on-disk size of files for 'relation' according to the stat function,
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* optionally including heap data, index data, and/or toast data.
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*/
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static int64
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calculate_complete_relation_size(Oid tblspcOid, Oid relnodeOid)
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{
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Relation heapRelation;
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Relation idxRelation;
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Relation toastRelation;
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Oid idxOid;
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Oid idxTblspcOid;
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Oid toastOid;
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Oid toastTblspcOid;
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bool hasIndices;
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int64 size = 0;
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List *indexoidlist;
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ListCell *idx;
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heapRelation = relation_open(relnodeOid, AccessShareLock);
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toastOid = heapRelation->rd_rel->reltoastrelid;
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hasIndices = heapRelation->rd_rel->relhasindex;
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/* Get the heap size */
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size += calculate_relation_size(tblspcOid, relnodeOid);
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/* Get Index size */
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if ( hasIndices ) {
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/* recursively include any dependent indexes ... */
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indexoidlist = RelationGetIndexList(heapRelation);
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foreach(idx, indexoidlist) {
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idxOid = lfirst_oid(idx);
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idxRelation = relation_open(idxOid, AccessShareLock);
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idxTblspcOid = idxRelation->rd_rel->reltablespace;
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size += calculate_relation_size(idxTblspcOid, idxOid);
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relation_close(idxRelation, AccessShareLock);
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}
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list_free(indexoidlist);
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}
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/* Close heapReleation now we no longer need it */
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relation_close(heapRelation, AccessShareLock);
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/* Get toast table size */
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if ( toastOid != 0 ) {
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/* recursively include any toast relations ... */
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toastRelation = relation_open(toastOid, AccessShareLock);
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toastTblspcOid = toastRelation->rd_rel->reltablespace;
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size += calculate_relation_size(toastTblspcOid, toastOid);
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relation_close(toastRelation, AccessShareLock);
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}
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return size;
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}
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/*
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* Compute on-disk size of files for 'relation' including
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* heap data, index data, and toasted data.
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*/
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Datum
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pg_complete_relation_size_oid(PG_FUNCTION_ARGS)
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{
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Oid relOid=PG_GETARG_OID(0);
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HeapTuple tuple;
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Form_pg_class pg_class;
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Oid relnodeOid;
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Oid tblspcOid;
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tuple = SearchSysCache(RELOID,
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ObjectIdGetDatum(relOid),
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0, 0, 0);
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if (!HeapTupleIsValid(tuple))
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ereport(ERROR,
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(ERRCODE_UNDEFINED_TABLE,
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errmsg("relation with OID %u does not exist", relOid)));
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pg_class = (Form_pg_class) GETSTRUCT(tuple);
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relnodeOid = pg_class->relfilenode;
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tblspcOid = pg_class->reltablespace;
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ReleaseSysCache(tuple);
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PG_RETURN_INT64(calculate_complete_relation_size(tblspcOid, relnodeOid));
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}
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Datum
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pg_complete_relation_size_name(PG_FUNCTION_ARGS)
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{
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text *relname = PG_GETARG_TEXT_P(0);
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RangeVar *relrv;
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Relation relation;
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Oid relnodeOid;
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Oid tblspcOid;
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relrv = makeRangeVarFromNameList(textToQualifiedNameList(relname));
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relation = relation_openrv(relrv, AccessShareLock);
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tblspcOid = relation->rd_rel->reltablespace;
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relnodeOid = relation->rd_rel->relfilenode;
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relation_close(relation, AccessShareLock);
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PG_RETURN_INT64(calculate_complete_relation_size(tblspcOid, relnodeOid));
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}
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/*
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* formatting with size units
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*/
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Datum
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pg_size_pretty(PG_FUNCTION_ARGS)
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{
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int64 size=PG_GETARG_INT64(0);
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char *result=palloc(50+VARHDRSZ);
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int64 limit = 10*1024;
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int64 mult=1;
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if (size < limit*mult)
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snprintf(VARDATA(result), 50, INT64_FORMAT" bytes",
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size);
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else
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{
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mult *= 1024;
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if (size < limit*mult)
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snprintf(VARDATA(result), 50, INT64_FORMAT " kB",
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(size+mult/2) / mult);
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else
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{
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mult *= 1024;
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if (size < limit*mult)
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snprintf(VARDATA(result), 50, INT64_FORMAT " MB",
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(size+mult/2) / mult);
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else
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{
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mult *= 1024;
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if (size < limit*mult)
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snprintf(VARDATA(result), 50, INT64_FORMAT " GB",
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(size+mult/2) / mult);
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else
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{
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mult *= 1024;
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snprintf(VARDATA(result), 50, INT64_FORMAT " TB",
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(size+mult/2) / mult);
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}
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}
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}
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}
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VARATT_SIZEP(result) = strlen(VARDATA(result)) + VARHDRSZ;
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PG_RETURN_TEXT_P(result);
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}
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/*
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* dbsize.c
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* object size functions
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||||
*
|
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* Copyright (c) 2002-2005, PostgreSQL Global Development Group
|
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*
|
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* IDENTIFICATION
|
||||
* $PostgreSQL: pgsql/src/backend/utils/adt/dbsize.c,v 1.2 2005/08/02 14:07:27 tgl Exp $
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*
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*/
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#include "postgres.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "access/heapam.h"
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#include "catalog/namespace.h"
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#include "catalog/pg_tablespace.h"
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#include "commands/dbcommands.h"
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#include "commands/tablespace.h"
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#include "miscadmin.h"
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#include "storage/fd.h"
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#include "utils/builtins.h"
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#include "utils/syscache.h"
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#include "utils/relcache.h"
|
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|
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|
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/* Return physical size of directory contents, or 0 if dir doesn't exist */
|
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static int64
|
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db_dir_size(const char *path)
|
||||
{
|
||||
int64 dirsize = 0;
|
||||
struct dirent *direntry;
|
||||
DIR *dirdesc;
|
||||
char filename[MAXPGPATH];
|
||||
|
||||
dirdesc = AllocateDir(path);
|
||||
|
||||
if (!dirdesc)
|
||||
return 0;
|
||||
|
||||
while ((direntry = readdir(dirdesc)) != NULL)
|
||||
{
|
||||
struct stat fst;
|
||||
|
||||
if (strcmp(direntry->d_name, ".") == 0 ||
|
||||
strcmp(direntry->d_name, "..") == 0)
|
||||
continue;
|
||||
|
||||
snprintf(filename, MAXPGPATH, "%s/%s", path, direntry->d_name);
|
||||
|
||||
if (stat(filename, &fst) < 0)
|
||||
ereport(ERROR,
|
||||
(errcode_for_file_access(),
|
||||
errmsg("could not stat \"%s\": %m", filename)));
|
||||
|
||||
dirsize += fst.st_size;
|
||||
}
|
||||
|
||||
FreeDir(dirdesc);
|
||||
return dirsize;
|
||||
}
|
||||
|
||||
/*
|
||||
* calculate size of database in all tablespaces
|
||||
*/
|
||||
static int64
|
||||
calculate_database_size(Oid dbOid)
|
||||
{
|
||||
int64 totalsize = 0;
|
||||
DIR *dirdesc;
|
||||
struct dirent *direntry;
|
||||
char pathname[MAXPGPATH];
|
||||
|
||||
/* Shared storage in pg_global is not counted */
|
||||
|
||||
/* Include pg_default storage */
|
||||
snprintf(pathname, MAXPGPATH, "%s/base/%u", DataDir, dbOid);
|
||||
totalsize += db_dir_size(pathname);
|
||||
|
||||
/* Scan the non-default tablespaces */
|
||||
snprintf(pathname, MAXPGPATH, "%s/pg_tblspc", DataDir);
|
||||
dirdesc = AllocateDir(pathname);
|
||||
if (!dirdesc)
|
||||
ereport(ERROR,
|
||||
(errcode_for_file_access(),
|
||||
errmsg("could not open tablespace directory \"%s\": %m",
|
||||
pathname)));
|
||||
|
||||
while ((direntry = readdir(dirdesc)) != NULL)
|
||||
{
|
||||
if (strcmp(direntry->d_name, ".") == 0 ||
|
||||
strcmp(direntry->d_name, "..") == 0)
|
||||
continue;
|
||||
|
||||
snprintf(pathname, MAXPGPATH, "%s/pg_tblspc/%s/%u",
|
||||
DataDir, direntry->d_name, dbOid);
|
||||
totalsize += db_dir_size(pathname);
|
||||
}
|
||||
|
||||
FreeDir(dirdesc);
|
||||
|
||||
/* Complain if we found no trace of the DB at all */
|
||||
if (!totalsize)
|
||||
ereport(ERROR,
|
||||
(ERRCODE_UNDEFINED_DATABASE,
|
||||
errmsg("database with OID %u does not exist", dbOid)));
|
||||
|
||||
return totalsize;
|
||||
}
|
||||
|
||||
Datum
|
||||
pg_database_size_oid(PG_FUNCTION_ARGS)
|
||||
{
|
||||
Oid dbOid = PG_GETARG_OID(0);
|
||||
|
||||
PG_RETURN_INT64(calculate_database_size(dbOid));
|
||||
}
|
||||
|
||||
Datum
|
||||
pg_database_size_name(PG_FUNCTION_ARGS)
|
||||
{
|
||||
Name dbName = PG_GETARG_NAME(0);
|
||||
Oid dbOid = get_database_oid(NameStr(*dbName));
|
||||
|
||||
if (!OidIsValid(dbOid))
|
||||
ereport(ERROR,
|
||||
(errcode(ERRCODE_UNDEFINED_DATABASE),
|
||||
errmsg("database \"%s\" does not exist",
|
||||
NameStr(*dbName))));
|
||||
|
||||
PG_RETURN_INT64(calculate_database_size(dbOid));
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* calculate total size of tablespace
|
||||
*/
|
||||
static int64
|
||||
calculate_tablespace_size(Oid tblspcOid)
|
||||
{
|
||||
char tblspcPath[MAXPGPATH];
|
||||
char pathname[MAXPGPATH];
|
||||
int64 totalsize=0;
|
||||
DIR *dirdesc;
|
||||
struct dirent *direntry;
|
||||
|
||||
if (tblspcOid == DEFAULTTABLESPACE_OID)
|
||||
snprintf(tblspcPath, MAXPGPATH, "%s/base", DataDir);
|
||||
else if (tblspcOid == GLOBALTABLESPACE_OID)
|
||||
snprintf(tblspcPath, MAXPGPATH, "%s/global", DataDir);
|
||||
else
|
||||
snprintf(tblspcPath, MAXPGPATH, "%s/pg_tblspc/%u", DataDir, tblspcOid);
|
||||
|
||||
dirdesc = AllocateDir(tblspcPath);
|
||||
|
||||
if (!dirdesc)
|
||||
ereport(ERROR,
|
||||
(errcode_for_file_access(),
|
||||
errmsg("could not open tablespace directory \"%s\": %m",
|
||||
tblspcPath)));
|
||||
|
||||
while ((direntry = readdir(dirdesc)) != NULL)
|
||||
{
|
||||
struct stat fst;
|
||||
|
||||
if (strcmp(direntry->d_name, ".") == 0 ||
|
||||
strcmp(direntry->d_name, "..") == 0)
|
||||
continue;
|
||||
|
||||
snprintf(pathname, MAXPGPATH, "%s/%s", tblspcPath, direntry->d_name);
|
||||
|
||||
if (stat(pathname, &fst) < 0)
|
||||
ereport(ERROR,
|
||||
(errcode_for_file_access(),
|
||||
errmsg("could not stat \"%s\": %m", pathname)));
|
||||
|
||||
if (fst.st_mode & S_IFDIR)
|
||||
totalsize += db_dir_size(pathname);
|
||||
|
||||
totalsize += fst.st_size;
|
||||
}
|
||||
|
||||
FreeDir(dirdesc);
|
||||
|
||||
return totalsize;
|
||||
}
|
||||
|
||||
Datum
|
||||
pg_tablespace_size_oid(PG_FUNCTION_ARGS)
|
||||
{
|
||||
Oid tblspcOid = PG_GETARG_OID(0);
|
||||
|
||||
PG_RETURN_INT64(calculate_tablespace_size(tblspcOid));
|
||||
}
|
||||
|
||||
Datum
|
||||
pg_tablespace_size_name(PG_FUNCTION_ARGS)
|
||||
{
|
||||
Name tblspcName = PG_GETARG_NAME(0);
|
||||
Oid tblspcOid = get_tablespace_oid(NameStr(*tblspcName));
|
||||
|
||||
if (!OidIsValid(tblspcOid))
|
||||
ereport(ERROR,
|
||||
(errcode(ERRCODE_UNDEFINED_OBJECT),
|
||||
errmsg("tablespace \"%s\" does not exist",
|
||||
NameStr(*tblspcName))));
|
||||
|
||||
PG_RETURN_INT64(calculate_tablespace_size(tblspcOid));
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* calculate size of a relation
|
||||
*/
|
||||
static int64
|
||||
calculate_relation_size(Oid tblspcOid, Oid relnodeOid)
|
||||
{
|
||||
int64 totalsize=0;
|
||||
unsigned int segcount=0;
|
||||
char dirpath[MAXPGPATH];
|
||||
char pathname[MAXPGPATH];
|
||||
|
||||
if (!tblspcOid)
|
||||
tblspcOid = MyDatabaseTableSpace;
|
||||
|
||||
if (tblspcOid == DEFAULTTABLESPACE_OID)
|
||||
snprintf(dirpath, MAXPGPATH, "%s/base/%u", DataDir, MyDatabaseId);
|
||||
else if (tblspcOid == GLOBALTABLESPACE_OID)
|
||||
snprintf(dirpath, MAXPGPATH, "%s/global", DataDir);
|
||||
else
|
||||
snprintf(dirpath, MAXPGPATH, "%s/pg_tblspc/%u/%u",
|
||||
DataDir, tblspcOid, MyDatabaseId);
|
||||
|
||||
for (segcount = 0 ;; segcount++)
|
||||
{
|
||||
struct stat fst;
|
||||
|
||||
if (segcount == 0)
|
||||
snprintf(pathname, MAXPGPATH, "%s/%u",
|
||||
dirpath, relnodeOid);
|
||||
else
|
||||
snprintf(pathname, MAXPGPATH, "%s/%u.%u",
|
||||
dirpath, relnodeOid, segcount);
|
||||
|
||||
if (stat(pathname, &fst) < 0)
|
||||
{
|
||||
if (errno == ENOENT)
|
||||
break;
|
||||
else
|
||||
ereport(ERROR,
|
||||
(errcode_for_file_access(),
|
||||
errmsg("could not stat \"%s\": %m", pathname)));
|
||||
}
|
||||
totalsize += fst.st_size;
|
||||
}
|
||||
|
||||
return totalsize;
|
||||
}
|
||||
|
||||
Datum
|
||||
pg_relation_size_oid(PG_FUNCTION_ARGS)
|
||||
{
|
||||
Oid relOid=PG_GETARG_OID(0);
|
||||
HeapTuple tuple;
|
||||
Form_pg_class pg_class;
|
||||
Oid relnodeOid;
|
||||
Oid tblspcOid;
|
||||
|
||||
tuple = SearchSysCache(RELOID,
|
||||
ObjectIdGetDatum(relOid),
|
||||
0, 0, 0);
|
||||
if (!HeapTupleIsValid(tuple))
|
||||
ereport(ERROR,
|
||||
(ERRCODE_UNDEFINED_TABLE,
|
||||
errmsg("relation with OID %u does not exist", relOid)));
|
||||
|
||||
pg_class = (Form_pg_class) GETSTRUCT(tuple);
|
||||
relnodeOid = pg_class->relfilenode;
|
||||
tblspcOid = pg_class->reltablespace;
|
||||
|
||||
ReleaseSysCache(tuple);
|
||||
|
||||
PG_RETURN_INT64(calculate_relation_size(tblspcOid, relnodeOid));
|
||||
}
|
||||
|
||||
Datum
|
||||
pg_relation_size_name(PG_FUNCTION_ARGS)
|
||||
{
|
||||
text *relname = PG_GETARG_TEXT_P(0);
|
||||
RangeVar *relrv;
|
||||
Relation relation;
|
||||
Oid relnodeOid;
|
||||
Oid tblspcOid;
|
||||
|
||||
relrv = makeRangeVarFromNameList(textToQualifiedNameList(relname));
|
||||
relation = relation_openrv(relrv, AccessShareLock);
|
||||
|
||||
tblspcOid = relation->rd_rel->reltablespace;
|
||||
relnodeOid = relation->rd_rel->relfilenode;
|
||||
|
||||
relation_close(relation, AccessShareLock);
|
||||
|
||||
PG_RETURN_INT64(calculate_relation_size(tblspcOid, relnodeOid));
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Compute on-disk size of files for 'relation' according to the stat function,
|
||||
* optionally including heap data, index data, and/or toast data.
|
||||
*/
|
||||
static int64
|
||||
calculate_complete_relation_size(Oid tblspcOid, Oid relnodeOid)
|
||||
{
|
||||
Relation heapRelation;
|
||||
Relation idxRelation;
|
||||
Relation toastRelation;
|
||||
Oid idxOid;
|
||||
Oid idxTblspcOid;
|
||||
Oid toastOid;
|
||||
Oid toastTblspcOid;
|
||||
bool hasIndices;
|
||||
int64 size = 0;
|
||||
List *indexoidlist;
|
||||
ListCell *idx;
|
||||
|
||||
heapRelation = relation_open(relnodeOid, AccessShareLock);
|
||||
toastOid = heapRelation->rd_rel->reltoastrelid;
|
||||
hasIndices = heapRelation->rd_rel->relhasindex;
|
||||
|
||||
/* Get the heap size */
|
||||
size += calculate_relation_size(tblspcOid, relnodeOid);
|
||||
|
||||
/* Get Index size */
|
||||
if ( hasIndices ) {
|
||||
/* recursively include any dependent indexes ... */
|
||||
indexoidlist = RelationGetIndexList(heapRelation);
|
||||
|
||||
foreach(idx, indexoidlist) {
|
||||
idxOid = lfirst_oid(idx);
|
||||
idxRelation = relation_open(idxOid, AccessShareLock);
|
||||
idxTblspcOid = idxRelation->rd_rel->reltablespace;
|
||||
size += calculate_relation_size(idxTblspcOid, idxOid);
|
||||
relation_close(idxRelation, AccessShareLock);
|
||||
}
|
||||
list_free(indexoidlist);
|
||||
}
|
||||
|
||||
/* Close heapReleation now we no longer need it */
|
||||
relation_close(heapRelation, AccessShareLock);
|
||||
|
||||
/* Get toast table size */
|
||||
if ( toastOid != 0 ) {
|
||||
|
||||
/* recursively include any toast relations ... */
|
||||
toastRelation = relation_open(toastOid, AccessShareLock);
|
||||
toastTblspcOid = toastRelation->rd_rel->reltablespace;
|
||||
size += calculate_relation_size(toastTblspcOid, toastOid);
|
||||
relation_close(toastRelation, AccessShareLock);
|
||||
}
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
/*
|
||||
* Compute on-disk size of files for 'relation' including
|
||||
* heap data, index data, and toasted data.
|
||||
*/
|
||||
Datum
|
||||
pg_complete_relation_size_oid(PG_FUNCTION_ARGS)
|
||||
{
|
||||
Oid relOid=PG_GETARG_OID(0);
|
||||
HeapTuple tuple;
|
||||
Form_pg_class pg_class;
|
||||
Oid relnodeOid;
|
||||
Oid tblspcOid;
|
||||
|
||||
tuple = SearchSysCache(RELOID,
|
||||
ObjectIdGetDatum(relOid),
|
||||
0, 0, 0);
|
||||
if (!HeapTupleIsValid(tuple))
|
||||
ereport(ERROR,
|
||||
(ERRCODE_UNDEFINED_TABLE,
|
||||
errmsg("relation with OID %u does not exist", relOid)));
|
||||
|
||||
pg_class = (Form_pg_class) GETSTRUCT(tuple);
|
||||
relnodeOid = pg_class->relfilenode;
|
||||
tblspcOid = pg_class->reltablespace;
|
||||
|
||||
ReleaseSysCache(tuple);
|
||||
|
||||
PG_RETURN_INT64(calculate_complete_relation_size(tblspcOid, relnodeOid));
|
||||
}
|
||||
|
||||
Datum
|
||||
pg_complete_relation_size_name(PG_FUNCTION_ARGS)
|
||||
{
|
||||
text *relname = PG_GETARG_TEXT_P(0);
|
||||
RangeVar *relrv;
|
||||
Relation relation;
|
||||
Oid relnodeOid;
|
||||
Oid tblspcOid;
|
||||
|
||||
relrv = makeRangeVarFromNameList(textToQualifiedNameList(relname));
|
||||
relation = relation_openrv(relrv, AccessShareLock);
|
||||
|
||||
tblspcOid = relation->rd_rel->reltablespace;
|
||||
relnodeOid = relation->rd_rel->relfilenode;
|
||||
|
||||
relation_close(relation, AccessShareLock);
|
||||
|
||||
PG_RETURN_INT64(calculate_complete_relation_size(tblspcOid, relnodeOid));
|
||||
}
|
||||
|
||||
/*
|
||||
* formatting with size units
|
||||
*/
|
||||
Datum
|
||||
pg_size_pretty(PG_FUNCTION_ARGS)
|
||||
{
|
||||
int64 size=PG_GETARG_INT64(0);
|
||||
char *result=palloc(50+VARHDRSZ);
|
||||
int64 limit = 10*1024;
|
||||
int64 mult=1;
|
||||
|
||||
if (size < limit*mult)
|
||||
snprintf(VARDATA(result), 50, INT64_FORMAT" bytes",
|
||||
size);
|
||||
else
|
||||
{
|
||||
mult *= 1024;
|
||||
if (size < limit*mult)
|
||||
snprintf(VARDATA(result), 50, INT64_FORMAT " kB",
|
||||
(size+mult/2) / mult);
|
||||
else
|
||||
{
|
||||
mult *= 1024;
|
||||
if (size < limit*mult)
|
||||
snprintf(VARDATA(result), 50, INT64_FORMAT " MB",
|
||||
(size+mult/2) / mult);
|
||||
else
|
||||
{
|
||||
mult *= 1024;
|
||||
if (size < limit*mult)
|
||||
snprintf(VARDATA(result), 50, INT64_FORMAT " GB",
|
||||
(size+mult/2) / mult);
|
||||
else
|
||||
{
|
||||
mult *= 1024;
|
||||
snprintf(VARDATA(result), 50, INT64_FORMAT " TB",
|
||||
(size+mult/2) / mult);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
VARATT_SIZEP(result) = strlen(VARDATA(result)) + VARHDRSZ;
|
||||
|
||||
PG_RETURN_TEXT_P(result);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue