Displaying information from PSQL command prompt

Post date: Oct 11, 2012 2:26:43 AM

gpadmin-# \?


  \copyright             show PostgreSQL usage and distribution terms

  \g [FILE] or ;         execute query (and send results to file or |pipe)

  \h [NAME]              help on syntax of SQL commands, * for all commands

  \q                     quit psql

Query Buffer

  \e [FILE]              edit the query buffer (or file) with external editor

  \ef [FUNCNAME]         edit function definition with external editor

  \p                     show the contents of the query buffer

  \r                     reset (clear) the query buffer

  \s [FILE]              display history or save it to file

  \w FILE                write query buffer to file


  \copy ...              perform SQL COPY with data stream to the client host

  \echo [STRING]         write string to standard output

  \i FILE                execute commands from file

  \o [FILE]              send all query results to file or |pipe

  \qecho [STRING]        write string to query output stream (see \o)


  (options: S = show system objects, + = additional detail)

  \d[S+]                 list tables, views, and sequences

  \d[S+]  NAME           describe table, view, sequence, or index

  \da[S]  [PATTERN]      list aggregates

  \db[+]  [PATTERN]      list tablespaces

  \dc[S]  [PATTERN]      list conversions

  \dC     [PATTERN]      list casts

  \dd[S]  [PATTERN]      show comments on objects

  \ddp    [PATTERN]      list default privileges

  \dD[S]  [PATTERN]      list domains

  \des[+] [PATTERN]      list foreign servers

  \deu[+] [PATTERN]      list user mappings

  \dew[+] [PATTERN]      list foreign-data wrappers

  \df[antw][S+] [PATRN]  list [only agg/normal/trigger/window] functions

  \dF[+]  [PATTERN]      list text search configurations

  \dFd[+] [PATTERN]      list text search dictionaries

  \dFp[+] [PATTERN]      list text search parsers

  \dFt[+] [PATTERN]      list text search templates

  \dg[+]  [PATTERN]      list roles (groups)

  \di[S+] [PATTERN]      list indexes

  \dl                    list large objects, same as \lo_list

  \dn[+]  [PATTERN]      list schemas

  \do[S]  [PATTERN]      list operators

  \dp     [PATTERN]      list table, view, and sequence access privileges

  \dr[S+] [PATTERN]      list foreign tables

  \drds [PATRN1 [PATRN2]] list per-database role settings

  \ds[S+] [PATTERN]      list sequences

  \dt[S+] [PATTERN]      list tables

  \dT[S+] [PATTERN]      list data types

  \du[+]  [PATTERN]      list roles (users)

  \dv[S+] [PATTERN]      list views

  \dx     [PATTERN]      list external tables

  \l[+]                  list all databases

  \z      [PATTERN]      same as \dp


  \a                     toggle between unaligned and aligned output mode

  \C [STRING]            set table title, or unset if none

  \f [STRING]            show or set field separator for unaligned query output

  \H                     toggle HTML output mode (currently off)

  \pset NAME [VALUE]     set table output option

                         (NAME := {format|border|expanded|fieldsep|footer|null|



  \t [on|off]            show only rows (currently off)

  \T [STRING]            set HTML <table> tag attributes, or unset if none

  \x [on|off]            toggle expanded output (currently off)


  \c[onnect] [DBNAME|- USER|- HOST|- PORT|-]

                         connect to new database (currently "gpadmin")

  \encoding [ENCODING]   show or set client encoding

  \password [USERNAME]   securely change the password for a user

  \conninfo              display information about current connection

Operating System

  \cd [DIR]              change the current working directory

  \timing [on|off]       toggle timing of commands (currently off)

  \! [COMMAND]           execute command in shell or start interactive shell


  \prompt [TEXT] NAME    prompt user to set internal variable

  \set [NAME [VALUE]]    set internal variable, or list all if no parameters

  \unset NAME            unset (delete) internal variable

Large Objects

  \lo_export LOBOID FILE

  \lo_import FILE [COMMENT]


  \lo_unlink LOBOID      large object operations