diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/catalogs.sgml | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml index 2201a687eb7..bc5592ce746 100644 --- a/doc/src/sgml/catalogs.sgml +++ b/doc/src/sgml/catalogs.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.132 2006/09/16 20:14:32 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.133 2006/09/18 22:40:36 tgl Exp $ --> <!-- Documentation of the system catalogs, directed toward PostgreSQL developers --> @@ -5029,9 +5029,14 @@ </para> <para> - If user-defined locks are in use, they are displayed using the columns - for general database objects. However, the actual meaning of the lock - fields in such cases is up to the user. + User-defined locks can be acquired on keys consisting of either a single + bigint value or two integer values. A bigint 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. </para> <para> |