index 464a48ed6afcda5bbb6ee52f19ea5df80a581a55..0057a1775704c9d3c904c2574edb05c354e435b3 100644 (file)
@@ -3565,7 +3565,23 @@ cast(-44 as bit(12)) <lineannotation>111111010100</lineannotation>
<literal>!~~</literal> and <literal>!~~*</literal> operators that
represent <function>NOT LIKE</function> and <function>NOT
ILIKE</function>, respectively. All of these operators are
- <productname>PostgreSQL</productname>-specific.
+ <productname>PostgreSQL</productname>-specific. You may see these
+ operator names in <command>EXPLAIN</command> output and similar
+ places, since the parser actually translates <function>LIKE</function>
+ et al. to these operators.
+ </para>
+
+ <para>
+ The phrases <function>LIKE</function>, <function>ILIKE</function>,
+ <function>NOT LIKE</function>, and <function>NOT ILIKE</function> are
+ generally treated as operators
+ in <productname>PostgreSQL</productname> syntax; for example they can
+ be used in <replaceable>expression</replaceable>
+ <replaceable>operator</replaceable> ANY
+ (<replaceable>subquery</replaceable>) constructs, although
+ an <literal>ESCAPE</literal> clause cannot be included there. In some
+ obscure cases it may be necessary to use the underlying operator names
+ instead.
</para>
<para>