diff options
Diffstat (limited to 'doc/src/sgml/ref/lock.sgml')
| -rw-r--r-- | doc/src/sgml/ref/lock.sgml | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/doc/src/sgml/ref/lock.sgml b/doc/src/sgml/ref/lock.sgml index 9b33ddc637c..b946eab3039 100644 --- a/doc/src/sgml/ref/lock.sgml +++ b/doc/src/sgml/ref/lock.sgml @@ -16,7 +16,7 @@ PostgreSQL documentation <refnamediv> <refname>LOCK</refname> - <refpurpose>lock a named relation (table, etc)</refpurpose> + <refpurpose>lock a table</refpurpose> </refnamediv> <refsynopsisdiv> @@ -34,9 +34,7 @@ LOCK [ TABLE ] [ ONLY ] <replaceable class="PARAMETER">name</replaceable> [ * ] <title>Description</title> <para> - <command>LOCK TABLE</command> obtains a table-level lock on a - relation (table, partitioned table, foreign table, view, - materialized view, index, composite type, sequence), waiting + <command>LOCK TABLE</command> obtains a table-level lock, waiting if necessary for any conflicting locks to be released. If <literal>NOWAIT</literal> is specified, <command>LOCK TABLE</command> does not wait to acquire the desired lock: if it @@ -112,23 +110,17 @@ LOCK [ TABLE ] [ ONLY ] <replaceable class="PARAMETER">name</replaceable> [ * ] <term><replaceable class="PARAMETER">name</replaceable></term> <listitem> <para> - The name (optionally schema-qualified) of an existing relation to - lock. If <literal>ONLY</literal> is specified before a table name, only that - table is locked. If <literal>ONLY</literal> is not specified, the table and all - its descendant tables (if any) are locked. Optionally, <literal>*</literal> + The name (optionally schema-qualified) of an existing table to + lock. If <literal>ONLY</> is specified before the table name, only that + table is locked. If <literal>ONLY</> is not specified, the table and all + its descendant tables (if any) are locked. Optionally, <literal>*</> can be specified after the table name to explicitly indicate that descendant tables are included. </para> <para> - Locking a view locks only the view object itself, not any referenced - relations. (Note that this behavior is different - in <productname>PostgreSQL</productname> v11 and later.) - </para> - - <para> - The command <literal>LOCK TABLE a, b;</literal> is equivalent to - <literal>LOCK TABLE a; LOCK TABLE b;</literal>. The relations are locked + The command <literal>LOCK TABLE a, b;</> is equivalent to + <literal>LOCK TABLE a; LOCK TABLE b;</>. The tables are locked one-by-one in the order specified in the <command>LOCK TABLE</command> command. </para> |