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	<201111151628.23731.johnf@jfcomputer.com>
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Cc: John Fabiani <johnf@jfcomputer.com>,
	"pgsql-sql@postgresql.org" <pgsql-sql@postgresql.org>,
	RichardBroersma <richard.broersma@gmail.com>
From: Sam Gendler <sgendler@ideasculptor.com>
Subject: Re: updating a sequence
Date: Tue, 15 Nov 2011 20:39:29 -0800
To: Scott Marlowe <scott.marlowe@gmail.com>


Sent from my iPhone

On Nov 15, 2011, at 7:49 PM, Scott Marlowe <scott.marlowe@gmail.com> wrote:

> On Tue, Nov 15, 2011 at 8:46 PM, Scott Marlowe <scott.marlowe@gmail.com> w=
rote:
>> On Tue, Nov 15, 2011 at 5:33 PM, Samuel Gendler
>> <sgendler@ideasculptor.com> wrote:
>>> On Tue, Nov 15, 2011 at 4:28 PM, John Fabiani <johnf@jfcomputer.com> wro=
te:
>>>>=20
>>>> On Tuesday, November 15, 2011 08:33:54 am Richard Broersma wrote:
>>>>> On Tue, Nov 15, 2011 at 8:06 AM, John Fabiani <johnf@jfcomputer.com>
>>>>> wrote:
>>>>>> alter sequence somename restart with (select max(pk) from sometable).=

>>>>>>=20
>>>>>> I need this for automating an ETL (using pentaho).
>>>>>=20
>>>>>=20
>>>>> http://www.postgresql.org/docs/9.1/interactive/functions-sequence.html=
#FUNC
>>>>> TIONS-SEQUENCE-TABLE
>>>>=20
>>>>=20
>>>> I don't see how that helps answer my problem.  I know how to update a
>>>> sequence.  I want to pass a value for the restart vaue that depends on a=

>>>> query
>>>> - all in one statement.  I would think it is a common problem i.e.
>>>> migrating
>>>> data.
>>>>=20
>>>=20
>>> use a subquery to set the value -
>>> select setval('foo', select max(some_id) from some_table)
>>> It's all right there in the with docs that you were pointed to. We try t=
o
>>> encourage people to be somewhat self sufficient around here.
>>=20
>> You need to wrap a subselect in ():
>>=20
>> select setval('foo', (select max(some_id) from some_table));
>>=20
>> That works in 9.1.1.  No clue about previous versions off the top of
>> my head, but I seem to recall it doesn't work in 8.3 and prior
>> versions.
>=20
> Was wrong, it definitely works in 8.3.  But only with the parens.


Yes. My version without parens was just a typo. I didn't test it before send=
ing it=