OPERATOR <replaceable class="PARAMETER">operator_name</replaceable> (<replaceable class="PARAMETER">left_type</replaceable>, <replaceable class="PARAMETER">right_type</replaceable>) |

OPERATOR CLASS <replaceable class="PARAMETER">object_name</replaceable> USING <replaceable class="parameter">index_method</replaceable> |

OPERATOR FAMILY <replaceable class="PARAMETER">object_name</replaceable> USING <replaceable class="parameter">index_method</replaceable> |

POLICY <replaceable class="PARAMETER">policy_name</replaceable> ON <replaceable class="PARAMETER">table_name</replaceable> |

[ PROCEDURAL ] LANGUAGE <replaceable class="PARAMETER">object_name</replaceable> |

ROLE <replaceable class="PARAMETER">object_name</replaceable> |

RULE <replaceable class="PARAMETER">rule_name</replaceable> ON <replaceable class="PARAMETER">table_name</replaceable> |

<term><replaceable class="parameter">constraint_name</replaceable></term>

<term><replaceable class="parameter">function_name</replaceable></term>

<term><replaceable class="parameter">operator_name</replaceable></term>

<term><replaceable class="parameter">policy_name</replaceable></term>

<term><replaceable class="parameter">rule_name</replaceable></term>

<term><replaceable class="parameter">trigger_name</replaceable></term>

<listitem>

<term><replaceable class="parameter">domain_name</replaceable></term>

<listitem>

<para>

When creating a comment on a constraint ona table ora domain, these

parameters specify the name of the table or domain on which the

constraint is defined.

When creating a comment on a constraint,a table,a domain or

a policy theseparameters specify the name of the table or domain on

which theconstraint is defined.

</para>

</listitem>

</varlistentry>

COMMENT ON OPERATOR - (NONE, integer) IS 'Unary minus';

COMMENT ON OPERATOR CLASS int4ops USING btree IS '4 byte integer operators for btrees';

COMMENT ON OPERATOR FAMILY integer_ops USING btree IS 'all integer operators for btrees';

COMMENT ON POLICY my_policy ON mytable IS 'Filter rows by users';

COMMENT ON ROLE my_role IS 'Administration group for finance tables';

COMMENT ON RULE my_rule ON my_table IS 'Logs updates of employee records';

COMMENT ON SCHEMA my_schema IS 'Departmental data';