diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/func.sgml | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml index cc83d6652e4..959f6a1c2f2 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -22826,7 +22826,8 @@ SELECT collation for ('foo' COLLATE "de_DE"); object). This description is intended to be human-readable, and might be translated, depending on server configuration. This is especially useful to determine the identity of an object referenced in the - <structname>pg_depend</structname> catalog. + <structname>pg_depend</structname> catalog. This function returns + <literal>NULL</literal> values for undefined objects. </para></entry> </row> @@ -22858,7 +22859,8 @@ SELECT collation for ('foo' COLLATE "de_DE"); otherwise <literal>NULL</literal>; <parameter>identity</parameter> is the complete object identity, with the precise format depending on object type, and each name within the - format being schema-qualified and quoted as necessary. + format being schema-qualified and quoted as necessary. Undefined + objects are identified with <literal>NULL</literal> values. </para></entry> </row> @@ -22915,6 +22917,7 @@ SELECT collation for ('foo' COLLATE "de_DE"); <parameter>objsubid</parameter> is the sub-object ID, or zero if none. This function is the inverse of <function>pg_identify_object_as_address</function>. + Undefined objects are identified with <literal>NULL</literal> values. </para></entry> </row> </tbody> |