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Diffstat (limited to 'doc/src/sgml/storage.sgml')
| -rw-r--r-- | doc/src/sgml/storage.sgml | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/doc/src/sgml/storage.sgml b/doc/src/sgml/storage.sgml index c48ce73de4..5430be9ad2 100644 --- a/doc/src/sgml/storage.sgml +++ b/doc/src/sgml/storage.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/storage.sgml,v 1.9 2006/03/10 19:10:49 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/storage.sgml,v 1.10 2006/04/23 03:39:52 momjian Exp $ --> <chapter id="storage"> @@ -187,15 +187,13 @@ Oversized-Attribute Storage Technique). </para> <para> -Since <productname>PostgreSQL</productname> uses a fixed page size (commonly -8Kb), and does not allow tuples to span multiple pages, it's not possible to -store very large field values directly. Before <productname>PostgreSQL</> 7.1 -there was a hard limit of just under one page on the total amount of data that -could be put into a table row. In release 7.1 and later, this limit is -overcome by allowing large field values to be compressed and/or broken up into -multiple physical rows. This happens transparently to the user, with only -small impact on most of the backend code. The technique is affectionately -known as <acronym>TOAST</> (or <quote>the best thing since sliced bread</>). +<productname>PostgreSQL</productname> uses a fixed page size (commonly +8Kb), and does not allow tuples to span multiple pages. Therefore, it is +not possible to store very large field values directly. To overcome +this limitation, large field values are compressed and/or broken up into +multiple physical rows. This happens transparently to the user, with only +small impact on most of the backend code. The technique is affectionately +known as <acronym>TOAST</> (or <quote>the best thing since sliced bread</>). </para> <para> |