Hackers, The documentation for pg_locks says that, for BIGINT advisory locks:
> A bigint key is displayed with its high-order half in the classid column, its > low-order half in the objid column I was in need of knowing what the bigint is that is waiting on a lock, and Andrew Dunstan was kind enough to help me out with that. Since other folks might also need it, here’s a doc patch. diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml new file mode 100644 index 9564e01..de1c266 *** a/doc/src/sgml/catalogs.sgml --- b/doc/src/sgml/catalogs.sgml *************** *** 7313,7319 **** 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 <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, --- 7313,7322 ---- 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. The original <type>bigint</type> value can be reassembled with the ! expression <literal>(classid::int::bit(64) << 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, Best, DAvid -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers