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doc: Some copy-editing around prefix operators

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When postfix operators where dropped in 1ed6b8956, the CREATE OPERATOR
docs were not updated to make the RIGHTARG argument mandatory in the
grammar.

While at it, make the RIGHTARG docs more concise. Also, the operator
docs were mentioning "infix" in the introduction, while using "binary"
everywhere else.

Author: Christoph Berg <myon@debian.org>
Discussion: https://www.postgresql.org/message-id/flat/aAtpbnQphv4LWAye@msg.df7cb.de
This commit is contained in:
Peter Eisentraut
2025-06-30 10:32:26 +02:00
parent c5c4fbb4d4
commit 2e640a0fa2
2 changed files with 4 additions and 4 deletions
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6
doc/src/sgml/ref/create_operator.sgml
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@ -23,7 +23,7 @@ PostgreSQL documentation
<synopsis>
CREATE OPERATOR <replaceable>name</replaceable> (
{FUNCTION|PROCEDURE} = <replaceable class="parameter">function_name</replaceable>
[, LEFTARG = <replaceable class="parameter">left_type</replaceable> ] [, RIGHTARG = <replaceable class="parameter">right_type</replaceable> ]
[, LEFTARG = <replaceable class="parameter">left_type</replaceable> ] , RIGHTARG = <replaceable class="parameter">right_type</replaceable>
[, COMMUTATOR = <replaceable class="parameter">com_op</replaceable> ] [, NEGATOR = <replaceable class="parameter">neg_op</replaceable> ]
[, RESTRICT = <replaceable class="parameter">res_proc</replaceable> ] [, JOIN = <replaceable class="parameter">join_proc</replaceable> ]
[, HASHES ] [, MERGES ]
@ -88,8 +88,8 @@ CREATE OPERATOR <replaceable>name</replaceable> (
<para>
For binary operators, both <literal>LEFTARG</literal> and
<literal>RIGHTARG</literal> must be defined. For prefix operators only
<literal>RIGHTARG</literal> should be defined.
<literal>RIGHTARG</literal> must be defined. For prefix operators, only
<literal>RIGHTARG</literal> must be defined.
The <replaceable class="parameter">function_name</replaceable>
function must have been previously defined using <command>CREATE
FUNCTION</command> and must be defined to accept the correct number

2
doc/src/sgml/xoper.sgml
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@ -21,7 +21,7 @@
<para>
<productname>PostgreSQL</productname> supports prefix
and infix operators. Operators can be
and binary (or infix) operators. Operators can be
overloaded;<indexterm><primary>overloading</primary><secondary>operators</secondary></indexterm>
that is, the same operator name can be used for different operators
that have different numbers and types of operands. When a query is