postgres.git / summary / log / commit / refs

commit    ec2bc3264ef007e6d7b6463029de689273161336
Author:   Stephen Frost <sfrost@snowman.net>
Date:     Wed Dec 21 20:03:44 2016 +0000

    Improve ALTER TABLE documentation
    
    The ALTER TABLE documentation wasn't terribly clear when it came to
    which commands could be combined together and what it meant when they
    were.
    
    In particular, SET TABLESPACE *can* be combined with other commands,
    when it's operating against a single table, but not when multiple tables
    are being moved with ALL IN TABLESPACE.  Further, the actions are
    applied together but not really in 'parallel', at least today.
    
    Pointed out by: Amit Langote
    
    Improved wording from Tom.
    
    Back-patch to 9.4, where the ALL IN TABLESPACE option was added.
    
    Discussion: https://www.postgresql.org/message-id/14c535b4-13ef-0590-1b98-76af355a0763%40lab.ntt.co.jp


 doc/src/sgml/ref/alter_table.sgml | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/doc/src/sgml/ref/alter_table.sgml b/doc/src/sgml/ref/alter_table.sgml
index 9fea2702bac..99459e1c3b3 100644
--- a/doc/src/sgml/ref/alter_table.sgml
+++ b/doc/src/sgml/ref/alter_table.sgml
@@ -702,10 +702,10 @@ ALTER TABLE ALL IN TABLESPACE <replaceable class="PARAMETER">name</replaceable>
   </para>
 
   <para>
-   All the actions except <literal>RENAME</literal>,
-   <literal>SET TABLESPACE</literal> and <literal>SET SCHEMA</literal>
-   can be combined into
-   a list of multiple alterations to apply in parallel.  For example, it
+   All the forms of ALTER TABLE that act on a single table, except
+   <literal>RENAME</literal>, and <literal>SET SCHEMA</literal>
+   can be combined into a list of multiple alterations to applied together.
+   For example, it
    is possible to add several columns and/or alter the type of several
    columns in a single command.  This is particularly useful with large
    tables, since only one pass over the table need be made.


[parent: 1efc5dba05a8]