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\dX

Lists extended statistics. If pattern is specified, only those extended statistics whose names match the pattern are listed. If x is appended to the command name, the results are displayed in expanded mode.

Reading PostgreSQL 18.6.

Description

Client: psql 18.6
Case-sensitive spelling: \dX

Usage

\dX[x] [ pattern ]

Spellings in this manual definition

Command	Documented suffix modifiers
\dX	x

Manual definition

\dX[x] [ pattern ]

Lists extended statistics. If pattern is specified, only those extended statistics whose names match the pattern are listed. If x is appended to the command name, the results are displayed in expanded mode.

The status of each kind of extended statistics is shown in a column named after its statistic kind (e.g. Ndistinct). defined means that it was requested when creating the statistics, and NULL means it wasn't requested. You can use pg_stats_ext if you'd like to know whether ANALYZE was run and statistics are available to the planner.

Related entries

psql command-line options and complete manual

Documentation and source

18.6 English manual · app-psql.html

Source build

Version: 18.6
Build: https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2
Source fingerprint: ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8

Compare versions

PostgreSQL 18 → 19: changed.

--- PostgreSQL 18
+++ PostgreSQL 19
@@ -1,12 +1,12 @@
 {
-  "definition": "Lists extended statistics. If pattern is specified, only those extended statistics whose names match the pattern are listed. If x is appended to the command name, the results are displayed in expanded mode. The status of each kind of extended statistics is shown in a column named after its statistic kind (e.g. Ndistinct). defined means that it was requested when creating the statistics, and NULL means it wasn't requested. You can use pg_stats_ext if you'd like to know whether ANALYZE was run and statistics are available to the planner.",
+  "definition": "Lists extended statistics. If pattern is specified, only those extended statistics whose names match the pattern are listed. If x is appended to the command name, the results are displayed in expanded mode. If + is appended to the command name, each object is listed with its associated description. The status of each kind of extended statistics is shown in a column named after its statistic kind (e.g. Ndistinct). defined means that it was requested when creating the statistics, and NULL means it wasn't requested. You can use pg_stats_ext if you'd like to know whether ANALYZE was run and statistics are available to the planner.",
   "modifiers": [
     {
       "command": "\\dX",
-      "modifiers": "x"
+      "modifiers": "x+"
     }
   ],
-  "signature": "\\dX[x] [ pattern ]",
+  "signature": "\\dX[x+] [ pattern ]",
   "spellings": [
     "\\dX"
   ]

Compares recorded interfaces and attributes. Source fingerprints and build metadata are excluded; an absent sample is not proof of the introduction or removal release.

Related entries

Export JSON · Back to psql Commands · Recorded in PostgreSQL 14 through 20; the first sample is not necessarily its introduction.