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Document COLLATE option in CREATE TYPE reference page.

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Curiously, it was already documented in ALTER TYPE ADD ATTRIBUTE, but
not here.
This commit is contained in:
Tom Lane 2011-04-17 17:05:51 -04:00
parent acfa1f45ed
commit 2d4617126f
1 changed files with 5 additions and 4 deletions
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9
doc/src/sgml/ref/create_type.sgml
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@ -22,7 +22,7 @@ PostgreSQL documentation
<refsynopsisdiv>
<synopsis>
CREATE TYPE <replaceable class="parameter">name</replaceable> AS
( [ <replaceable class="PARAMETER">attribute_name</replaceable> <replaceable class="PARAMETER">data_type</replaceable> [, ... ] ] )
( [ <replaceable class="PARAMETER">attribute_name</replaceable> <replaceable class="PARAMETER">data_type</replaceable> [ COLLATE <replaceable>collation</replaceable> ] [, ... ] ] )
CREATE TYPE <replaceable class="parameter">name</replaceable> AS ENUM
( [ '<replaceable class="parameter">label</replaceable>' [, ... ] ] )
@ -77,11 +77,12 @@ CREATE TYPE <replaceable class="parameter">name</replaceable>
The first form of <command>CREATE TYPE</command>
creates a composite type.
The composite type is specified by a list of attribute names and data types.
This is essentially the same as the row type
An attribute's collation can be specified too, if its data type is
collatable. A composite type is essentially the same as the row type
of a table, but using <command>CREATE TYPE</command> avoids the need to
create an actual table when all that is wanted is to define a type.
A stand-alone composite type is useful as the argument or return type of a
function.
A stand-alone composite type is useful, for example, as the argument or
return type of a function.
</para>
</refsect2>