DROP OPERATOR CLASS(7) SQL Commands DROP OPERATOR CLASS(7) NAME DROP OPERATOR CLASS - SYNOPSIS DROP OPERATOR CLASS name USING index_method [ CASCADE | RESTRICT ] DESCRIPTION DROP OPERATOR CLASS PARAMETERS name index_method CASCADE RESTRICT EXAMPLES B-tree widget_ops DROP OPERATOR CLASS widget_ops USING btree; CASCADE COMPATIBILITY SQL DROP OPERATOR CLASS SEE ALSO ALTER OPERATOR CLASS [alter_operator_class(7)], CREATE OPERATOR CLASS [create_operator_class(l)] Postgresql man man https://github.com/man-pages-zh/manpages- zh SQL - Language Statements 2003-11-02 DROP OPERATOR CLASS(7)