Thread: dbsize backend integration

dbsize backend integration

From
Andreas Pflug
Date:
As a start for a bunch of instrumentation functions that should be
included in the backend as discussed previously, here are the dbsize
functions. The dbsize.c file should go to the usual place,
src/backend/utils/adt.

Regards,
Andreas

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? doc/src/sgml/ssl-tcp.html
? doc/src/sgml/storage-page-layout.html
? doc/src/sgml/storage-toast.html
? doc/src/sgml/storage.html
? doc/src/sgml/supported-platforms.html
? doc/src/sgml/transaction-iso.html
? doc/src/sgml/trigger-datachanges.html
? doc/src/sgml/trigger-example.html
? doc/src/sgml/trigger-interface.html
? doc/src/sgml/triggers.html
? doc/src/sgml/tutorial-accessdb.html
? doc/src/sgml/tutorial-advanced.html
? doc/src/sgml/tutorial-agg.html
? doc/src/sgml/tutorial-arch.html
? doc/src/sgml/tutorial-concepts.html
? doc/src/sgml/tutorial-conclusion.html
? doc/src/sgml/tutorial-createdb.html
? doc/src/sgml/tutorial-delete.html
? doc/src/sgml/tutorial-fk.html
? doc/src/sgml/tutorial-inheritance.html
? doc/src/sgml/tutorial-join.html
? doc/src/sgml/tutorial-populate.html
? doc/src/sgml/tutorial-select.html
? doc/src/sgml/tutorial-sql.html
? doc/src/sgml/tutorial-start.html
? doc/src/sgml/tutorial-table.html
? doc/src/sgml/tutorial-transactions.html
? doc/src/sgml/tutorial-update.html
? doc/src/sgml/tutorial-views.html
? doc/src/sgml/tutorial.html
? doc/src/sgml/typeconv-func.html
? doc/src/sgml/typeconv-oper.html
? doc/src/sgml/typeconv-query.html
? doc/src/sgml/typeconv-union-case.html
? doc/src/sgml/typeconv.html
? doc/src/sgml/unsupported-features-sql-standard.html
? doc/src/sgml/user-attributes.html
? doc/src/sgml/user-manag.html
? doc/src/sgml/version.sgml
? doc/src/sgml/view-pg-indexes.html
? doc/src/sgml/view-pg-locks.html
? doc/src/sgml/view-pg-rules.html
? doc/src/sgml/view-pg-settings.html
? doc/src/sgml/view-pg-stats.html
? doc/src/sgml/view-pg-tables.html
? doc/src/sgml/view-pg-user.html
? doc/src/sgml/view-pg-views.html
? doc/src/sgml/views-overview.html
? doc/src/sgml/wal-configuration.html
? doc/src/sgml/wal-internals.html
? doc/src/sgml/wal.html
? doc/src/sgml/xaggr.html
? doc/src/sgml/xfunc-c.html
? doc/src/sgml/xfunc-internal.html
? doc/src/sgml/xfunc-overload.html
? doc/src/sgml/xfunc-pl.html
? doc/src/sgml/xfunc-sql.html
? doc/src/sgml/xfunc-volatility.html
? doc/src/sgml/xfunc.html
? doc/src/sgml/xindex.html
? doc/src/sgml/xoper-optimization.html
? doc/src/sgml/xoper.html
? doc/src/sgml/xplang.html
? doc/src/sgml/xtypes.html
? src/Makefile.global
? src/backend/postgres
? src/backend/catalog/postgres.bki
? src/backend/catalog/postgres.description
? src/backend/utils/adt/dbsize.c
? src/backend/utils/adt/ruleutils.diff
? src/backend/utils/mb/conversion_procs/conversion_create.sql
? src/backend/utils/mb/conversion_procs/ascii_and_mic/libascii_and_mic.so.0.0
? src/backend/utils/mb/conversion_procs/cyrillic_and_mic/libcyrillic_and_mic.so.0.0
? src/backend/utils/mb/conversion_procs/euc_cn_and_mic/libeuc_cn_and_mic.so.0.0
? src/backend/utils/mb/conversion_procs/euc_jp_and_sjis/libeuc_jp_and_sjis.so.0.0
? src/backend/utils/mb/conversion_procs/euc_kr_and_mic/libeuc_kr_and_mic.so.0.0
? src/backend/utils/mb/conversion_procs/euc_tw_and_big5/libeuc_tw_and_big5.so.0.0
? src/backend/utils/mb/conversion_procs/latin2_and_win1250/liblatin2_and_win1250.so.0.0
? src/backend/utils/mb/conversion_procs/latin_and_mic/liblatin_and_mic.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_ascii/libutf8_and_ascii.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_big5/libutf8_and_big5.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_cyrillic/libutf8_and_cyrillic.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_euc_cn/libutf8_and_euc_cn.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_euc_jp/libutf8_and_euc_jp.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_euc_kr/libutf8_and_euc_kr.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_euc_tw/libutf8_and_euc_tw.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_gb18030/libutf8_and_gb18030.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_gbk/libutf8_and_gbk.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_iso8859/libutf8_and_iso8859.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_iso8859_1/libutf8_and_iso8859_1.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_johab/libutf8_and_johab.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_sjis/libutf8_and_sjis.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_tcvn/libutf8_and_tcvn.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_uhc/libutf8_and_uhc.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_win1250/libutf8_and_win1250.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_win1252/libutf8_and_win1252.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_win1256/libutf8_and_win1256.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_win1258/libutf8_and_win1258.so.0.0
? src/backend/utils/mb/conversion_procs/utf8_and_win874/libutf8_and_win874.so.0.0
? src/bin/initdb/initdb
? src/bin/ipcclean/ipcclean
? src/bin/pg_config/pg_config
? src/bin/pg_controldata/pg_controldata
? src/bin/pg_ctl/pg_ctl
? src/bin/pg_dump/pg_dump
? src/bin/pg_dump/pg_dumpall
? src/bin/pg_dump/pg_restore
? src/bin/pg_resetxlog/pg_resetxlog
? src/bin/psql/psql
? src/bin/scripts/clusterdb
? src/bin/scripts/createdb
? src/bin/scripts/createlang
? src/bin/scripts/createuser
? src/bin/scripts/dropdb
? src/bin/scripts/droplang
? src/bin/scripts/dropuser
? src/bin/scripts/vacuumdb
? src/include/pg_config.h
? src/include/stamp-h
? src/interfaces/ecpg/compatlib/libecpg_compat.so.1.1
? src/interfaces/ecpg/compatlib/libecpg_compat.so.2.1
? src/interfaces/ecpg/ecpglib/libecpg.so.4.2
? src/interfaces/ecpg/ecpglib/libecpg.so.5.1
? src/interfaces/ecpg/pgtypeslib/libpgtypes.so.1.2
? src/interfaces/ecpg/pgtypeslib/libpgtypes.so.2.1
? src/interfaces/ecpg/preproc/ecpg
? src/interfaces/libpq/libpq.so.3.2
? src/interfaces/libpq/libpq.so.4.1
? src/pl/plpgsql/src/libplpgsql.so.1.0
? src/port/pg_config_paths.h
? src/timezone/zic
Index: doc/src/sgml/func.sgml
===================================================================
RCS file: /projects/cvsroot/pgsql/doc/src/sgml/func.sgml,v
retrieving revision 1.250
diff -u -r1.250 func.sgml
--- doc/src/sgml/func.sgml    23 May 2005 01:50:01 -0000    1.250
+++ doc/src/sgml/func.sgml    1 Jun 2005 18:50:16 -0000
@@ -8970,6 +8970,83 @@
     For details about proper usage of these functions, see
     <xref linkend="backup-online">.
    </para>
+
+   <indexterm zone="functions-admin">
+    <primary>pg_tablespace_size</primary>
+   </indexterm>
+   <indexterm zone="functions-admin">
+    <primary>pg_database_size</primary>
+   </indexterm>
+   <indexterm zone="functions-admin">
+    <primary>pg_relation_size</primary>
+   </indexterm>
+   <indexterm zone="functions-admin">
+    <primary>pg_size_pretty</primary>
+   </indexterm>
+
+   <para>
+    The functions shown in <xref
+    linkend="functions-admin-dbsize"> calculate the actual disk space
+    usage of database objects.
+   </para>
+
+   <table id="functions-admin-dbsize">
+    <title>Database Object Size Functions</title>
+    <tgroup cols="3">
+     <thead>
+      <row><entry>Name</entry> <entry>Return Type</entry> <entry>Description</entry>
+      </row>
+     </thead>
+
+     <tbody>
+      <row>
+       <entry>
+        <literal><function>pg_tablespace_size</function>(<parameter>tablespace_oid</parameter>)</literal>
+        </entry>
+       <entry><type>int8</type></entry>
+       <entry>Calculates total disk space of a tablespace</entry>
+      </row>
+      <row>
+       <entry>
+        <literal><function>pg_database_size</function>(<parameter>database_oid</parameter>)</literal>
+        </entry>
+       <entry><type>int8</type></entry>
+       <entry>Calculates total disk space of a database</entry>
+      </row>
+      <row>
+       <entry>
+        <literal><function>pg_relation_size</function>(<parameter>relation_oid</parameter>)</literal>
+        </entry>
+       <entry><type>int8</type></entry>
+       <entry>Calculates total disk space of a relation</entry>
+      </row>
+      <row>
+       <entry>
+        <literal><function>pg_size_pretty</function>(<parameter>size_int8</parameter>)</literal>
+        </entry>
+       <entry><type>text</type></entry>
+       <entry>Formats the size in a human readable format with size units </entry>
+      </row>
+     </tbody>
+    </tgroup>
+   </table>
+
+   <para>
+    <function>pg_tablespace_size</>, <function>pg_tablespace_size</>
+    and <function>pg_relation_size</> accept an oid, and calculate
+    the disk space usage of the object.
+   </para>
+   <para>
+    <function>pg_relation_size</> accepts oids of standard tables, indexes and
+    toast tables. To calculate the disk space usage of a table
+    including all its indexes and toast tables, these components need
+    to be summed up.
+   </para>
+   <para>
+    <function>pg_size_pretty</> can be used to format the size of the
+    database objects in a human readable way, using kB, MB, GB or TB as appropriate.
+   </para>
+
   </sect1>
 </chapter>

Index: src/backend/utils/adt/Makefile
===================================================================
RCS file: /projects/cvsroot/pgsql/src/backend/utils/adt/Makefile,v
retrieving revision 1.57
diff -u -r1.57 Makefile
--- src/backend/utils/adt/Makefile    1 Apr 2004 21:28:45 -0000    1.57
+++ src/backend/utils/adt/Makefile    1 Jun 2005 18:50:20 -0000
@@ -24,7 +24,7 @@
     tid.o timestamp.o varbit.o varchar.o varlena.o version.o xid.o \
     network.o mac.o inet_net_ntop.o inet_net_pton.o \
     ri_triggers.o pg_lzcompress.o pg_locale.o formatting.o \
-    ascii.o quote.o pgstatfuncs.o encode.o
+    ascii.o quote.o pgstatfuncs.o encode.o dbsize.o

 like.o: like.c like_match.c

Index: src/include/catalog/pg_proc.h
===================================================================
RCS file: /projects/cvsroot/pgsql/src/include/catalog/pg_proc.h,v
retrieving revision 1.363
diff -u -r1.363 pg_proc.h
--- src/include/catalog/pg_proc.h    20 May 2005 01:29:55 -0000    1.363
+++ src/include/catalog/pg_proc.h    1 Jun 2005 18:50:38 -0000
@@ -3023,6 +3023,15 @@
 DATA(insert OID = 2173 ( pg_stop_backup            PGNSP PGUID 12 f f t f v 0 25 "" _null_ _null_ _null_
pg_stop_backup- _null_ )); 
 DESCR("Finish taking an online backup");

+DATA(insert OID = 2285 ( pg_tablespace_size        PGNSP PGUID 12 f f t f v 1 20 "26" _null_ _null_ _null_
pg_tablespace_size- _null_ )); 
+DESCR("Calculate total disk space usage for tablespace");
+DATA(insert OID = 2286 ( pg_database_size        PGNSP PGUID 12 f f t f v 1 20 "26" _null_ _null_ _null_
pg_database_size- _null_ )); 
+DESCR("Calculate total disk space usage for database");
+DATA(insert OID = 2287 ( pg_relation_size        PGNSP PGUID 12 f f t f v 1 20 "26" _null_ _null_ _null_
pg_relation_size- _null_ )); 
+DESCR("Calculate total disk space usage for relation");
+DATA(insert OID = 2288 ( pg_size_pretty          PGNSP PGUID 12 f f t f v 1 25 "20" _null_ _null_ _null_
pg_size_pretty- _null_ )); 
+DESCR("Convert a long int to a human readable text using size units");
+

 /* Aggregates (moved here from pg_aggregate for 7.3) */

Index: src/include/utils/builtins.h
===================================================================
RCS file: /projects/cvsroot/pgsql/src/include/utils/builtins.h,v
retrieving revision 1.257
diff -u -r1.257 builtins.h
--- src/include/utils/builtins.h    27 May 2005 00:57:49 -0000    1.257
+++ src/include/utils/builtins.h    1 Jun 2005 18:50:41 -0000
@@ -364,6 +364,12 @@
 extern Datum pg_cancel_backend(PG_FUNCTION_ARGS);
 extern Datum pg_tablespace_databases(PG_FUNCTION_ARGS);

+/* dbsize.c */
+extern Datum pg_tablespace_size(PG_FUNCTION_ARGS);
+extern Datum pg_database_size(PG_FUNCTION_ARGS);
+extern Datum pg_relation_size(PG_FUNCTION_ARGS);
+extern Datum pg_size_pretty(PG_FUNCTION_ARGS);
+
 /* not_in.c */
 extern Datum int4notin(PG_FUNCTION_ARGS);
 extern Datum oidnotin(PG_FUNCTION_ARGS);
/*
 * dbsize.c
 * object size functions
 *
 * Copyright (c) 2002-2005, PostgreSQL Global Development Group
 *
 * IDENTIFICATION
 *      $PostgreSQL: pgsql/contrib/dbsize/dbsize.c,v 1.17 2005/05/27 00:57:48 neilc Exp $
 *
 */

#include "postgres.h"

#include <sys/types.h>
#include <sys/stat.h>

#include "access/heapam.h"
#include "catalog/namespace.h"
#include "catalog/pg_tablespace.h"
#include "commands/dbcommands.h"
#include "miscadmin.h"
#include "storage/fd.h"
#include "utils/builtins.h"
#include "utils/syscache.h"


/* Return physical size of directory contents, or 0 if dir doesn't exist */
static int64
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;
}


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;
}

/*
 * calculate total size of tablespace
 */
Datum
pg_tablespace_size(PG_FUNCTION_ARGS)
{
    Oid tblspcOid = PG_GETARG_OID(0);
    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)));
        totalsize += fst.st_size;

        if (fst.st_mode & S_IFDIR)
            totalsize += db_dir_size(pathname);
    }

    FreeDir(dirdesc);

    PG_RETURN_INT64(totalsize);
}


/*
 * calculate size of database in all tablespaces
 */
Datum
pg_database_size(PG_FUNCTION_ARGS)
{
    Oid dbOid = PG_GETARG_OID(0);

    PG_RETURN_INT64(calculate_database_size(dbOid));
}


/* Calculate relation size given tablespace and relation OIDs */
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;
}

/*
 * calculate size of relation
 */
Datum
pg_relation_size(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));
}


/*
 * 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);
}

Re: dbsize backend integration

From
Bruce Momjian
Date:
Andreas Pflug wrote:
> As a start for a bunch of instrumentation functions that should be
> included in the backend as discussed previously, here are the dbsize
> functions. The dbsize.c file should go to the usual place,
> src/backend/utils/adt.

How does this related to /contrib/dbsize?  You have moved some
functions, but not recreated others.

--
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073

Re: dbsize backend integration

From
Andreas Pflug
Date:
Bruce Momjian wrote:
> Andreas Pflug wrote:
>
>>As a start for a bunch of instrumentation functions that should be
>>included in the backend as discussed previously, here are the dbsize
>>functions. The dbsize.c file should go to the usual place,
>>src/backend/utils/adt.
>
>
> How does this related to /contrib/dbsize?  You have moved some
> functions, but not recreated others.
>

This patch includes only those functions that return the basic values
nobody but the server can provide; all others are some kind of derived
functions, as implemented by some personal needs. They should stay in
contrib, as they all have some limitations (e.g. implementing a subset,
as relation_size which only counts tables, or total_relation_size et al,
which are schema ignorant).

Regards,
Andreas

Re: dbsize backend integration

From
Bruce Momjian
Date:
This version is being removed from the patches queue because it does not
address how to handle existing dbsize functions not moved into the main
server.


---------------------------------------------------------------------------

Andreas Pflug wrote:
> As a start for a bunch of instrumentation functions that should be
> included in the backend as discussed previously, here are the dbsize
> functions. The dbsize.c file should go to the usual place,
> src/backend/utils/adt.
>
> Regards,
> Andreas
>



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  Bruce Momjian                        |  http://candle.pha.pa.us
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Re: dbsize backend integration

From
"Marc G. Fournier"
Date:
If dbsize is being moved from contrib to the backend, it should be moved
in in its entirety ...

On Tue, 21 Jun 2005, Bruce Momjian wrote:

>
> This version is being removed from the patches queue because it does not
> address how to handle existing dbsize functions not moved into the main
> server.
>
>
> ---------------------------------------------------------------------------
>
> Andreas Pflug wrote:
>> As a start for a bunch of instrumentation functions that should be
>> included in the backend as discussed previously, here are the dbsize
>> functions. The dbsize.c file should go to the usual place,
>> src/backend/utils/adt.
>>
>> Regards,
>> Andreas
>>
>
>
>
>>
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>> TIP 5: Have you checked our extensive FAQ?
>>
>>                http://www.postgresql.org/docs/faq
>
> --
>  Bruce Momjian                        |  http://candle.pha.pa.us
>  pgman@candle.pha.pa.us               |  (610) 359-1001
>  +  If your life is a hard drive,     |  13 Roberts Road
>  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073
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