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Add pg_describe_object function

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This function is useful to obtain textual descriptions of objects as
stored in pg_depend.
This commit is contained in:
Alvaro Herrera
2010-11-18 16:33:48 -03:00
parent 48c348f86c
commit 6cc2deb86e
5 changed files with 48 additions and 28 deletions
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12
doc/src/sgml/func.sgml
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@ -12847,6 +12847,11 @@ SELECT pg_type_is_visible('myschema.widget'::regtype);
<entry><type>setof oid</type></entry>
<entry>get the set of database OIDs that have objects in the tablespace</entry>
</row>
<row>
<entry><literal><function>pg_describe_object(<parameter>catalog_id</parameter>, <parameter>object_id</parameter>, <parameter>object_sub_id</parameter>)</function>)</literal></entry>
<entry><type>text</type></entry>
<entry>get description of a database object</entry>
</row>
<row>
<entry><literal><function>pg_typeof(<parameter>any</parameter>)</function></literal></entry>
<entry><type>regtype</type></entry>
@ -12940,6 +12945,13 @@ SELECT pg_type_is_visible('myschema.widget'::regtype);
<structname>pg_class</> catalogs.
</para>
<para>
<function>pg_describe_object</function> returns a description of a database
object specified by catalog OID, object OID and a (possibly zero) sub-object ID.
This is useful to determine the identity of an object as stored in the
<structname>pg_depend</structname> catalog.
</para>
<para>
<function>pg_typeof</function> returns the OID of the data type of the
value that is passed to it. This can be helpful for troubleshooting or