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-rw-r--r--doc/src/sgml/func.sgml19
1 files changed, 0 insertions, 19 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index df2c1c6f053..7d06b979ebf 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -762,25 +762,6 @@ repeat('Pg', 4) <returnvalue>PgPgPgPg</returnvalue>
expression must be of Boolean type.
</para>
-<!-- IS OF does not conform to the ISO SQL behavior, so it is undocumented here
- <para>
- <indexterm>
- <primary>IS OF</primary>
- </indexterm>
- <indexterm>
- <primary>IS NOT OF</primary>
- </indexterm>
- It is possible to check the data type of an expression using the
- predicates
-<synopsis>
-<replaceable>expression</replaceable> IS OF (typename, ...)
-<replaceable>expression</replaceable> IS NOT OF (typename, ...)
-</synopsis>
- They return a boolean value based on whether the expression's data
- type is one of the listed data types.
- </para>
--->
-
<para>
Some comparison-related functions are also available, as shown in <xref
linkend="functions-comparison-func-table"/>.