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diff --git a/doc/src/sgml/man1/oid2name.1 b/doc/src/sgml/man1/oid2name.1 new file mode 100644 index 0000000..b0fb8b7 --- /dev/null +++ b/doc/src/sgml/man1/oid2name.1 @@ -0,0 +1,379 @@ +'\" t +.\" Title: oid2name +.\" Author: The PostgreSQL Global Development Group +.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/> +.\" Date: 2022 +.\" Manual: PostgreSQL 14.5 Documentation +.\" Source: PostgreSQL 14.5 +.\" Language: English +.\" +.TH "OID2NAME" "1" "2022" "PostgreSQL 14.5" "PostgreSQL 14.5 Documentation" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +oid2name \- resolve OIDs and file nodes in a PostgreSQL data directory +.SH "SYNOPSIS" +.HP \w'\fBoid2name\fR\ 'u +\fBoid2name\fR [\fIoption\fR...] +.SH "DESCRIPTION" +.PP +oid2name +is a utility program that helps administrators to examine the file structure used by PostgreSQL\&. To make use of it, you need to be familiar with the database file structure, which is described in +Chapter\ \&70\&. +.if n \{\ +.sp +.\} +.RS 4 +.it 1 an-trap +.nr an-no-space-flag 1 +.nr an-break-flag 1 +.br +.ps +1 +\fBNote\fR +.ps -1 +.br +.PP +The name +\(lqoid2name\(rq +is historical, and is actually rather misleading, since most of the time when you use it, you will really be concerned with tables\*(Aq filenode numbers (which are the file names visible in the database directories)\&. Be sure you understand the difference between table OIDs and table filenodes! +.sp .5v +.RE +.PP +oid2name +connects to a target database and extracts OID, filenode, and/or table name information\&. You can also have it show database OIDs or tablespace OIDs\&. +.SH "OPTIONS" +.PP +oid2name +accepts the following command\-line arguments: +.PP +\fB\-f \fR\fB\fIfilenode\fR\fR +.br +\fB\-\-filenode=\fR\fB\fIfilenode\fR\fR +.RS 4 +show info for table with filenode +\fIfilenode\fR\&. +.RE +.PP +\fB\-i\fR +.br +\fB\-\-indexes\fR +.RS 4 +include indexes and sequences in the listing\&. +.RE +.PP +\fB\-o \fR\fB\fIoid\fR\fR +.br +\fB\-\-oid=\fR\fB\fIoid\fR\fR +.RS 4 +show info for table with OID +\fIoid\fR\&. +.RE +.PP +\fB\-q\fR +.br +\fB\-\-quiet\fR +.RS 4 +omit headers (useful for scripting)\&. +.RE +.PP +\fB\-s\fR +.br +\fB\-\-tablespaces\fR +.RS 4 +show tablespace OIDs\&. +.RE +.PP +\fB\-S\fR +.br +\fB\-\-system\-objects\fR +.RS 4 +include system objects (those in +\fBinformation_schema\fR, +\fBpg_toast\fR +and +\fBpg_catalog\fR +schemas)\&. +.RE +.PP +\fB\-t \fR\fB\fItablename_pattern\fR\fR +.br +\fB\-\-table=\fR\fB\fItablename_pattern\fR\fR +.RS 4 +show info for table(s) matching +\fItablename_pattern\fR\&. +.RE +.PP +\fB\-V\fR +.br +\fB\-\-version\fR +.RS 4 +Print the +oid2name +version and exit\&. +.RE +.PP +\fB\-x\fR +.br +\fB\-\-extended\fR +.RS 4 +display more information about each object shown: tablespace name, schema name, and OID\&. +.RE +.PP +\fB\-?\fR +.br +\fB\-\-help\fR +.RS 4 +Show help about +oid2name +command line arguments, and exit\&. +.RE +.PP +oid2name +also accepts the following command\-line arguments for connection parameters: +.PP +\fB\-d \fR\fB\fIdatabase\fR\fR +.br +\fB\-\-dbname=\fR\fB\fIdatabase\fR\fR +.RS 4 +database to connect to\&. +.RE +.PP +\fB\-h \fR\fB\fIhost\fR\fR +.br +\fB\-\-host=\fR\fB\fIhost\fR\fR +.RS 4 +database server\*(Aqs host\&. +.RE +.PP +\fB\-H \fR\fB\fIhost\fR\fR +.RS 4 +database server\*(Aqs host\&. Use of this parameter is +\fIdeprecated\fR +as of +PostgreSQL +12\&. +.RE +.PP +\fB\-p \fR\fB\fIport\fR\fR +.br +\fB\-\-port=\fR\fB\fIport\fR\fR +.RS 4 +database server\*(Aqs port\&. +.RE +.PP +\fB\-U \fR\fB\fIusername\fR\fR +.br +\fB\-\-username=\fR\fB\fIusername\fR\fR +.RS 4 +user name to connect as\&. +.RE +.PP +To display specific tables, select which tables to show by using +\fB\-o\fR, +\fB\-f\fR +and/or +\fB\-t\fR\&. +\fB\-o\fR +takes an OID, +\fB\-f\fR +takes a filenode, and +\fB\-t\fR +takes a table name (actually, it\*(Aqs a +LIKE +pattern, so you can use things like +foo%)\&. You can use as many of these options as you like, and the listing will include all objects matched by any of the options\&. But note that these options can only show objects in the database given by +\fB\-d\fR\&. +.PP +If you don\*(Aqt give any of +\fB\-o\fR, +\fB\-f\fR +or +\fB\-t\fR, but do give +\fB\-d\fR, it will list all tables in the database named by +\fB\-d\fR\&. In this mode, the +\fB\-S\fR +and +\fB\-i\fR +options control what gets listed\&. +.PP +If you don\*(Aqt give +\fB\-d\fR +either, it will show a listing of database OIDs\&. Alternatively you can give +\fB\-s\fR +to get a tablespace listing\&. +.SH "ENVIRONMENT" +.PP +\fBPGHOST\fR +.br +\fBPGPORT\fR +.br +\fBPGUSER\fR +.RS 4 +Default connection parameters\&. +.RE +.PP +This utility, like most other +PostgreSQL +utilities, also uses the environment variables supported by +libpq +(see +Section\ \&34.15)\&. +.PP +The environment variable +\fBPG_COLOR\fR +specifies whether to use color in diagnostic messages\&. Possible values are +always, +auto +and +never\&. +.SH "NOTES" +.PP +oid2name +requires a running database server with non\-corrupt system catalogs\&. It is therefore of only limited use for recovering from catastrophic database corruption situations\&. +.SH "EXAMPLES" +.sp +.if n \{\ +.RS 4 +.\} +.nf +$ # what\*(Aqs in this database server, anyway? +$ oid2name +All databases: + Oid Database Name Tablespace +\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- + 17228 alvherre pg_default + 17255 regression pg_default + 17227 template0 pg_default + 1 template1 pg_default + +$ oid2name \-s +All tablespaces: + Oid Tablespace Name +\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- + 1663 pg_default + 1664 pg_global + 155151 fastdisk + 155152 bigdisk + +$ # OK, let\*(Aqs look into database alvherre +$ cd $PGDATA/base/17228 + +$ # get top 10 db objects in the default tablespace, ordered by size +$ ls \-lS * | head \-10 +\-rw\-\-\-\-\-\-\- 1 alvherre alvherre 136536064 sep 14 09:51 155173 +\-rw\-\-\-\-\-\-\- 1 alvherre alvherre 17965056 sep 14 09:51 1155291 +\-rw\-\-\-\-\-\-\- 1 alvherre alvherre 1204224 sep 14 09:51 16717 +\-rw\-\-\-\-\-\-\- 1 alvherre alvherre 581632 sep 6 17:51 1255 +\-rw\-\-\-\-\-\-\- 1 alvherre alvherre 237568 sep 14 09:50 16674 +\-rw\-\-\-\-\-\-\- 1 alvherre alvherre 212992 sep 14 09:51 1249 +\-rw\-\-\-\-\-\-\- 1 alvherre alvherre 204800 sep 14 09:51 16684 +\-rw\-\-\-\-\-\-\- 1 alvherre alvherre 196608 sep 14 09:50 16700 +\-rw\-\-\-\-\-\-\- 1 alvherre alvherre 163840 sep 14 09:50 16699 +\-rw\-\-\-\-\-\-\- 1 alvherre alvherre 122880 sep 6 17:51 16751 + +$ # I wonder what file 155173 is \&.\&.\&. +$ oid2name \-d alvherre \-f 155173 +From database "alvherre": + Filenode Table Name +\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- + 155173 accounts + +$ # you can ask for more than one object +$ oid2name \-d alvherre \-f 155173 \-f 1155291 +From database "alvherre": + Filenode Table Name +\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- + 155173 accounts + 1155291 accounts_pkey + +$ # you can mix the options, and get more details with \-x +$ oid2name \-d alvherre \-t accounts \-f 1155291 \-x +From database "alvherre": + Filenode Table Name Oid Schema Tablespace +\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- + 155173 accounts 155173 public pg_default + 1155291 accounts_pkey 1155291 public pg_default + +$ # show disk space for every db object +$ du [0\-9]* | +> while read SIZE FILENODE +> do +> echo "$SIZE `oid2name \-q \-d alvherre \-i \-f $FILENODE`" +> done +16 1155287 branches_pkey +16 1155289 tellers_pkey +17561 1155291 accounts_pkey +\&.\&.\&. + +$ # same, but sort by size +$ du [0\-9]* | sort \-rn | while read SIZE FN +> do +> echo "$SIZE `oid2name \-q \-d alvherre \-f $FN`" +> done +133466 155173 accounts +17561 1155291 accounts_pkey +1177 16717 pg_proc_proname_args_nsp_index +\&.\&.\&. + +$ # If you want to see what\*(Aqs in tablespaces, use the pg_tblspc directory +$ cd $PGDATA/pg_tblspc +$ oid2name \-s +All tablespaces: + Oid Tablespace Name +\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- + 1663 pg_default + 1664 pg_global + 155151 fastdisk + 155152 bigdisk + +$ # what databases have objects in tablespace "fastdisk"? +$ ls \-d 155151/* +155151/17228/ 155151/PG_VERSION + +$ # Oh, what was database 17228 again? +$ oid2name +All databases: + Oid Database Name Tablespace +\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- + 17228 alvherre pg_default + 17255 regression pg_default + 17227 template0 pg_default + 1 template1 pg_default + +$ # Let\*(Aqs see what objects does this database have in the tablespace\&. +$ cd 155151/17228 +$ ls \-l +total 0 +\-rw\-\-\-\-\-\-\- 1 postgres postgres 0 sep 13 23:20 155156 + +$ # OK, this is a pretty small table \&.\&.\&. but which one is it? +$ oid2name \-d alvherre \-f 155156 +From database "alvherre": + Filenode Table Name +\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- + 155156 foo +.fi +.if n \{\ +.RE +.\} +.SH "AUTHOR" +.PP +B\&. Palmer +<bpalmer@crimelabs\&.net> |