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><H1
><A
NAME="SQL-DROPOPCLASS"
>DROP OPERATOR CLASS</A
></H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN42870"
></A
><H2
>Name</H2
> DROP OPERATOR CLASS
-- remove a user-defined operator class
</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN42873"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>DROP OPERATOR CLASS <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> USING <TT
CLASS="REPLACEABLE"
><I
>access_method</I
></TT
> [ CASCADE | RESTRICT ]
</PRE
><DIV
CLASS="REFSECT2"
><A
NAME="R2-SQL-DROPOPCLASS-1"
></A
><H3
> Inputs
</H3
><P
> <P
></P
></P><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
></DT
><DD
><P
> The name (optionally schema-qualified) of an existing operator class.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>access_method</I
></TT
></DT
><DD
><P
> The name of the index access method the operator class is for.
</P
></DD
><DT
>CASCADE</DT
><DD
><P
> Automatically drop objects that depend on the operator class.
</P
></DD
><DT
>RESTRICT</DT
><DD
><P
> Refuse to drop the operator class if there are any dependent objects.
This is the default.
</P
></DD
></DL
></DIV
><P>
</P
></DIV
><DIV
CLASS="REFSECT2"
><A
NAME="R2-SQL-DROPOPCLASS-2"
></A
><H3
> Outputs
</H3
><P
> <P
></P
></P><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="COMPUTEROUTPUT"
>DROP OPERATOR CLASS
</TT
></DT
><DD
><P
> The message returned if the command is successful.
</P
></DD
></DL
></DIV
><P>
</P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="R1-SQL-DROPOPCLASS-1"
></A
><H2
> Description
</H2
><P
> <TT
CLASS="COMMAND"
>DROP OPERATOR CLASS</TT
> drops an existing operator class
from the database.
To execute this command you must be the owner of the operator class.
</P
><DIV
CLASS="REFSECT2"
><A
NAME="R2-SQL-DROPOPCLASS-3"
></A
><H3
> Notes
</H3
><P
> The <TT
CLASS="COMMAND"
>DROP OPERATOR CLASS</TT
> statement is a
<SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
>
language extension.
</P
><P
> Refer to
<A
HREF="sql-createopclass.html"
><I
>CREATE OPERATOR CLASS</I
></A
>
for information on how to create operator classes.
</P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="R1-SQL-DROPOPCLASS-2"
></A
><H2
> Usage
</H2
><P
> Remove B-tree operator class <TT
CLASS="LITERAL"
>widget_ops</TT
>:
</P><PRE
CLASS="PROGRAMLISTING"
>DROP OPERATOR CLASS widget_ops USING btree;
</PRE
><P>
This command will not execute if there are any existing indexes
that use the operator class. Add <TT
CLASS="LITERAL"
>CASCADE</TT
> to drop
such indexes along with the operator class.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="R1-SQL-DROPOPCLASS-3"
></A
><H2
> Compatibility
</H2
><DIV
CLASS="REFSECT2"
><A
NAME="R2-SQL-DROPOPCLASS-4"
></A
><H3
> SQL92
</H3
><P
> There is no <TT
CLASS="COMMAND"
>DROP OPERATOR CLASS</TT
> in
<SPAN
CLASS="ACRONYM"
>SQL92</SPAN
>.
</P
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