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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2005-09-24 20:35:21 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2005-09-24 20:35:21 +0000 |
| commit | 5d9c6b18d30daa35e59c89f33c685e0133da0bf4 (patch) | |
| tree | fec2767ba2c4985e2ebfb86ccb2e4d882202ce5e | |
| parent | 8a65b820e2ef00d26050ac0d04962abaa91ab7b5 (diff) | |
| download | postgresql-5d9c6b18d30daa35e59c89f33c685e0133da0bf4.tar.gz postgresql-5d9c6b18d30daa35e59c89f33c685e0133da0bf4.zip | |
Document change in large object snapshotting behavior as a version
compatibility issue.
| -rw-r--r-- | doc/src/sgml/release.sgml | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/doc/src/sgml/release.sgml b/doc/src/sgml/release.sgml index c79bbc8048e..7660d338f40 100644 --- a/doc/src/sgml/release.sgml +++ b/doc/src/sgml/release.sgml @@ -1,5 +1,5 @@ <!-- -$PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.374 2005/09/23 16:36:35 momjian Exp $ +$PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.375 2005/09/24 20:35:21 tgl Exp $ Typical markup: @@ -378,6 +378,21 @@ pg_[A-Za-z0-9_] <application> <listitem> <para> + Read-only large object descriptors now obey MVCC snapshot semantics + </para> + <para> + When a large object is opened with <literal>INV_READ</> (and not + <literal>INV_WRITE</>), the data read from the descriptor will now + reflect a <quote>snapshot</> of the large object's state at the + time of the transaction snapshot in use by the query that called + <function>lo_open()</>. To obtain the old behavior of always + returning the latest committed data, include <literal>INV_WRITE</> + in the mode flags for <function>lo_open()</>. + </para> + </listitem> + + <listitem> + <para> In <application>psql</application>, treat unquoted <literal>\{digit}+</> sequences as octal (Bruce) </para> |