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Show opclass and opfamily related information in psql

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This commit provides psql commands for listing operator classes, operator
families and its contents in psql.  New commands will be useful for exploring
capabilities of both builtin opclasses/opfamilies as well as
opclasses/opfamilies defined in extensions.

Discussion: https://postgr.es/m/1529675324.14193.5.camel%40postgrespro.ru
Author: Sergey Cherkashin, Nikita Glukhov, Alexander Korotkov
Reviewed-by: Michael Paquier, Alvaro Herrera, Arthur Zakirov
Reviewed-by: Kyotaro Horiguchi, Andres Freund
This commit is contained in:
Alexander Korotkov
2020-03-08 13:32:25 +03:00
parent 691e8b2e18
commit b0b5e20cd8
8 changed files with 676 additions and 2 deletions
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91
doc/src/sgml/ref/psql-ref.sgml
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@ -1231,6 +1231,97 @@ testdb=>
</listitem>
</varlistentry>
<varlistentry>
<term>
<literal>\dAc[+]
[<link linkend="app-psql-patterns"><replaceable class="parameter">access-method-pattern</replaceable></link>
[<link linkend="app-psql-patterns"><replaceable class="parameter">input-type-pattern</replaceable></link>]]
</literal>
</term>
<listitem>
<para>
Lists operator classes
(see <xref linkend="catalog-pg-opclass"/>).
If <replaceable class="parameter">access-method-patttern</replaceable>
is specified, only operator classes associated with access methods whose
names match pattern are listed.
If <replaceable class="parameter">input-type-pattern</replaceable>
is specified, only operator classes associated with input types whose
names match the pattern are listed.
If <literal>+</literal> is appended to the command name, each operator
class is listed with its associated operator family and owner.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<literal>\dAf[+]
[<link linkend="app-psql-patterns"><replaceable class="parameter">access-method-pattern</replaceable></link>
[<link linkend="app-psql-patterns"><replaceable class="parameter">input-type-pattern</replaceable></link>]]
</literal>
</term>
<listitem>
<para>
Lists operator families
(see <xref linkend="catalog-pg-opfamily"/>).
If <replaceable class="parameter">access-method-patttern</replaceable>
is specified, only operator families associated with access methods whose
names match pattern are listed.
If <replaceable class="parameter">input-type-pattern</replaceable>
is specified, only operator families associated with input types whose
names match the pattern are listed.
If <literal>+</literal> is appended to the command name, each operator
family is listed with its owner.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<literal>\dAo[+]
[<link linkend="app-psql-patterns"><replaceable class="parameter">access-method-pattern</replaceable></link>
[<link linkend="app-psql-patterns"><replaceable class="parameter">operator-family-pattern</replaceable></link>]]
</literal>
</term>
<listitem>
<para>
Lists operators associated with operator families
(<xref linkend="catalog-pg-amop"/>).
If <replaceable class="parameter">access-method-patttern</replaceable>
is specified, only members of operator families associated with access
methods whose names match pattern are listed.
If <replaceable class="parameter">input-type-pattern</replaceable>
is specified, only memeber of operator families whose names match the
pattern are listed.
If <literal>+</literal> is appended to the command name, each operator
is listed with its strategy number, purpose and sort operator family.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<literal>\dAp[+]
[<link linkend="app-psql-patterns"><replaceable class="parameter">access-method-pattern</replaceable></link>
[<link linkend="app-psql-patterns"><replaceable class="parameter">operator-family-pattern</replaceable></link>]]
</literal>
</term>
<listitem>
<para>
Lists procedures associated with operator families
(<xref linkend="catalog-pg-amproc"/>).
If <replaceable class="parameter">access-method-patttern</replaceable>
is specified, only members of operator families associated with access
methods whose names match pattern are listed.
If <replaceable class="parameter">input-type-pattern</replaceable>
is specified, only memeber of operator families whose names match the
pattern are listed.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>\db[+] [ <link linkend="app-psql-patterns"><replaceable class="parameter">pattern</replaceable></link> ]</literal></term>