Re: Prob. with migration plugin wrt. MS SQL source DB

Hi Jason.

In PostgreSQL 7.2.x and below, the name datatype (used by identifiers)
is 32 characters long. This means that names cannot exceed 31 characters
(1 char is used for a terminating null). In PostgreSQL 7.3 (to be
released any day now), this limit has been increased to 64 (practical
length 63). You can hack 7.2.x by editting the NAMEDATALEN value which
is in src/include/postgres.h (iirc) and recompiling. This does require
an initdb though, and may affect performance. For further info on this
checkout the postgresql list archives (archives.postgresql.org).

Regards, Dave.

-----Original Message-----
From: Jason Uberig [mailto:uberjay(at)hotmail(dot)com]
Sent: 20 November 2002 18:29
To: pgadmin-support(at)postgresql(dot)org
Subject: [pgadmin-support] Prob. with migration plugin wrt. MS
SQL source DB


Hello, in trying to run the migration tool on a fairly large MS
SQL DB I am receiving the following error:

-------------------------------------
Creating table: NDF__COMPANY_MARKETING_CONTACTS
Creating sequence NDF__COMPANY_MARKETING_CONTACTS_NDF__ID_key

An error occured at: 20/11/2002 12:27:47 PM:
-2147467259: ERROR: Relation 'NDF__COMPANY_MARKETING_CONTACTS'
already exists

Rolling back... Done.
-------------------------------------

From MS SQL (2000) the SQL of the table is as follows:

-------------------------------------
CREATE TABLE [dbo].[NDF__COMPANY_MARKETING_CONTACTS] (
[NDF__ID] [int] IDENTITY (1, 1) NOT NULL ,
[CONTACTS_ID] [int] NULL ,
[COMPANIES_ID] [int] NULL ,
[NDF_VALUE] [varchar] (100) COLLATE
SQL_Latin1_General_CP1_CI_AS NULL
) ON [PRIMARY]
GO

ALTER TABLE [dbo].[NDF__COMPANY_MARKETING_CONTACTS] WITH NOCHECK
ADD
CONSTRAINT [PK_NDF__COMPANY_MARKETING_CONTACTS] PRIMARY KEY
CLUSTERED
(
[NDF__ID]
) ON [PRIMARY]
GO
-------------------------------------

It seems like there might be some limitation on the length of a
relation's identifier. That is, it looks as if the sequence name is
getting truncated.

Any thoughts? Is this something with the migration plugin or
pgadmin or postgresql??

Thanks for any help!
Jason.