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1 | 1 | <!-- |
2 | | -$PostgreSQL: pgsql/doc/src/sgml/mvcc.sgml,v 2.46 2004/12/23 23:07:38 tgl Exp $ |
| 2 | +$PostgreSQL: pgsql/doc/src/sgml/mvcc.sgml,v 2.47 2005/02/26 18:37:17 tgl Exp $ |
3 | 3 | --> |
4 | 4 |
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5 | 5 | <chapter id="mvcc"> |
@@ -677,8 +677,9 @@ SELECT SUM(value) FROM mytab WHERE class = 2; |
677 | 677 | </para> |
678 | 678 |
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679 | 679 | <para> |
680 | | - This lock mode is not automatically acquired by any |
681 | | - <productname>PostgreSQL</productname> command. |
| 680 | + This lock mode is not automatically acquired on user tables by any |
| 681 | + <productname>PostgreSQL</productname> command. However it is |
| 682 | + acquired on certain system catalogs in some operations. |
682 | 683 | </para> |
683 | 684 | </listitem> |
684 | 685 | </varlistentry> |
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