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Todo items:

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Add ALTER SEQUENCE to modify min/max/increment/cache/cycle values

Also updated create sequence docs to mention NO MINVALUE, & NO MAXVALUE.

New Files:
doc/src/sgml/ref/alter_sequence.sgml
src/test/regress/expected/sequence.out
src/test/regress/sql/sequence.sql


ALTER SEQUENCE is NOT transactional.  It behaves similarly to setval().
It matches the proposed SQL200N spec, as well as Oracle in most ways --
Oracle lacks RESTART WITH for some strange reason.

--
Rod Taylor <rbt@rbt.ca>
This commit is contained in:
Bruce Momjian
2003-03-20 07:02:11 +00:00
parent 46bce088c1
commit 5f65225fa3
22 changed files with 631 additions and 125 deletions
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18
doc/src/sgml/ref/create_sequence.sgml
View File

@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_sequence.sgml,v 1.30 2003/01/19 00:13:29 momjian Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_sequence.sgml,v 1.31 2003/03/20 07:02:07 momjian Exp $
PostgreSQL documentation
-->
@ -22,7 +22,7 @@ PostgreSQL documentation
</refsynopsisdivinfo>
<synopsis>
CREATE [ TEMPORARY | TEMP ] SEQUENCE <replaceable class="parameter">seqname</replaceable> [ INCREMENT [ BY ] <replaceable class="parameter">increment</replaceable> ]
[ MINVALUE <replaceable class="parameter">minvalue</replaceable> ] [ MAXVALUE <replaceable class="parameter">maxvalue</replaceable> ]
[ MINVALUE <replaceable class="parameter">minvalue</replaceable> | NO MINVALUE ] [ MAXVALUE <replaceable class="parameter">maxvalue</replaceable> | NO MAXVALUE ]
[ START [ WITH ] <replaceable class="parameter">start</replaceable> ] [ CACHE <replaceable class="parameter">cache</replaceable> ] [ [ NO ] CYCLE ]
</synopsis>
@ -63,7 +63,7 @@ CREATE [ TEMPORARY | TEMP ] SEQUENCE <replaceable class="parameter">seqname</rep
<listitem>
<para>
The
<option>INCREMENT <replaceable class="parameter">increment</replaceable></option>
<option>INCREMENT BY <replaceable class="parameter">increment</replaceable></option>
clause is optional. A positive value will make an
ascending sequence, a negative one a descending sequence.
The default value is one (1).
@ -73,12 +73,14 @@ CREATE [ TEMPORARY | TEMP ] SEQUENCE <replaceable class="parameter">seqname</rep
<varlistentry>
<term><replaceable class="parameter">minvalue</replaceable></term>
<term>NO MINVALUE</term>
<listitem>
<para>
The optional clause <option>MINVALUE
<replaceable class="parameter">minvalue</replaceable></option>
determines the minimum value
a sequence can generate. The defaults are 1 and -2^63-1 for
a sequence can generate. If this clause is not supplied or <option>NO MINVALUE</option>
is specified, then defaults will be used. The defaults are 1 and -2^63-1 for
ascending and descending sequences, respectively.
</para>
</listitem>
@ -86,13 +88,15 @@ CREATE [ TEMPORARY | TEMP ] SEQUENCE <replaceable class="parameter">seqname</rep
<varlistentry>
<term><replaceable class="parameter">maxvalue</replaceable></term>
<term>NO MAXVALUE</term>
<listitem>
<para>
The optional clause <option>MAXVALUE
<replaceable class="parameter">maxvalue</replaceable></option>
determines the maximum
value for the sequence. The defaults are 2^63-1 and -1 for
ascending and descending sequences, respectively.
value for the sequence. If this clause is not supplied or
<option>NO MAXVALUE</option> is specified, then default values will be used.
The defaults are 2^63-1 and -1 for ascending and descending sequences, respectively.
</para>
</listitem>
</varlistentry>
@ -101,7 +105,7 @@ CREATE [ TEMPORARY | TEMP ] SEQUENCE <replaceable class="parameter">seqname</rep
<term><replaceable class="parameter">start</replaceable></term>
<listitem>
<para>
The optional <option>START
The optional <option>START WITH
<replaceable class="parameter">start</replaceable>
clause</option> enables the sequence to begin anywhere.
The default starting value is