A <type>bigint</type> key is displayed with its

high-order half in the <structfield>classid</> column, its low-order half

in the <structfield>objid</> column, and <structfield>objsubid</> equal

to 1. Integer keys are displayed with the first key in the

to 1. The original <type>bigint</type> value can be reassembled with the

expression <literal>(classid::int::bit(64) &lt;&lt; 32 |

objid::int::bit(64))::bigint</literal>. Integer keys are displayed with the

first key in the

<structfield>classid</> column, the second key in the <structfield>objid</>

column, and <structfield>objsubid</> equal to 2. The actual meaning of

the keys is up to the user. Advisory locks are local to each database,