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| author | Bruce Momjian <bruce@momjian.us> | 2008-09-07 01:29:36 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2008-09-07 01:29:36 +0000 |
| commit | 1cfd878643195788afb66cbdb80c093824470dd5 (patch) | |
| tree | 115651a342ec8bc2ae0abc5328cd8c88c3765916 | |
| parent | 409c144d8343f7f2284ff90979edfec3c487e9ee (diff) | |
| download | postgresql-1cfd878643195788afb66cbdb80c093824470dd5.tar.gz postgresql-1cfd878643195788afb66cbdb80c093824470dd5.zip | |
Clarify documention workding for xip_list().
Simon Riggs
| -rw-r--r-- | doc/src/sgml/func.sgml | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml index 7d8608d01e5..c03863af99a 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.444 2008/09/06 00:01:21 tgl Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.445 2008/09/07 01:29:36 momjian Exp $ --> <chapter id="functions"> <title>Functions and Operators</title> @@ -12006,11 +12006,14 @@ SELECT pg_type_is_visible('myschema.widget'::regtype); <row> <entry><type>xip_list</type></entry> <entry> - Active txids at the time of the snapshot. All of them are between - <literal>xmin</> and <literal>xmax</>. A txid that is - <literal>xmin <= txid < xmax</literal> and not in this list was - already completed at the time of the snapshot, and thus either visible - or dead according to its commit status. + Active txids at the time of the snapshot. The list + includes only those active txids between <literal>xmin</> + and <literal>xmax</>; there might be active txids higher + than xmax. A txid that is <literal>xmin <= txid < + xmax</literal> and not in this list was already completed + at the time of the snapshot, and thus either visible or + dead according to its commit status. The list does not + include txids of subtransactions. </entry> </row> |