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Use clearer woring for pg_locks columns, identifying which items are

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related to lock objects.
This commit is contained in:
Bruce Momjian 2011-07-13 11:41:39 -04:00
parent 0d29c375cc
commit 80a1d16935
1 changed files with 13 additions and 12 deletions
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25
doc/src/sgml/catalogs.sgml
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@ -6930,7 +6930,7 @@
<entry>
OID of the database in which the object exists, or
zero if the object is a shared object, or
null if the object is a transaction ID
null if the lock object is on a transaction ID
</entry>
</row>
<row>
@ -6938,8 +6938,8 @@
<entry><type>oid</type></entry>
<entry><literal><link linkend="catalog-pg-class"><structname>pg_class</structname></link>.oid</literal></entry>
<entry>
OID of the relation, or null if the object is not
a relation or part of a relation
OID of the relation, or null if the lock object is not
on a relation or part of a relation
</entry>
</row>
<row>
@ -6947,8 +6947,8 @@
<entry><type>integer</type></entry>
<entry></entry>
<entry>
Page number within the relation, or null if the object
is not a tuple or relation page
Page number within the relation, or null if the lock object
is not on a tuple or relation page
</entry>
</row>
<row>
@ -6956,7 +6956,8 @@
<entry><type>smallint</type></entry>
<entry></entry>
<entry>
Tuple number within the page, or null if the object is not a tuple
Tuple number within the page, or null if the lock object is not
on a tuple
</entry>
</row>
<row>
@ -6964,8 +6965,8 @@
<entry><type>text</type></entry>
<entry></entry>
<entry>
Virtual ID of a transaction, or null if the object is not a
virtual transaction ID
Virtual ID of a transaction lock, or null if the lock object is not
on a virtual transaction ID
</entry>
</row>
<row>
@ -6973,7 +6974,7 @@
<entry><type>xid</type></entry>
<entry></entry>
<entry>
ID of a transaction, or null if the object is not a transaction ID
ID of a transaction lock, or null if the lock object is not on a transaction ID
</entry>
</row>
<row>
@ -6982,7 +6983,7 @@
<entry><literal><link linkend="catalog-pg-class"><structname>pg_class</structname></link>.oid</literal></entry>
<entry>
OID of the system catalog containing the object, or null if the
object is not a general database object
lock object is not on a general database object.
</entry>
</row>
<row>
@ -6991,7 +6992,7 @@
<entry>any OID column</entry>
<entry>
OID of the object within its system catalog, or null if the
object is not a general database object.
lock object is not on a general database object.
For advisory locks it is used to distinguish the two key
spaces (1 for an int8 key, 2 for two int4 keys).
</entry>
@ -7004,7 +7005,7 @@
For a table column, this is the column number (the
<structfield>classid</> and <structfield>objid</> refer to the
table itself). For all other object types, this column is
zero. Null if the object is not a general database object
zero. Null if the lock object is not on a general database object.
</entry>
</row>
<row>