[GTALUG] looking for a tool to transform table relationships

[Steve Petrie, P.Eng.]

You could also consult the PostgreSQL users email forum pgsql-general at lists.postgresql.org

Needs registration, but when I was receiving the forum messages, I noticed that participants were always promptly helpful to all comers. But sometimes there is a LOT of email traffic.

I dropped out from this PosthreSQL forum a while ago, just because I chose another direction for my database application. Nothing wrong with PostgreSQL at all -- it's a great product.

Steve

----- Original Message ----- 
  From: Alex Volkov via talk 
  To: GTALUG Talk 
  Sent: Friday, July 20, 2018 1:42 PM
  Subject: [GTALUG] looking for a tool to transform table relationships


  Hey Everyone,

  I'm looking for a tool to transform (possibly migrate) data from one 
  postgres db to another.

  I have two postgres databases -- old (not normalized) has all the data 
  and new (normalized with some major schema changes) has no data.

  The new db has more tables and table relationship structured 
  differently, some data residing in old db is in text column in csv 
  format, whereas in new database it's a separate table, and so on.

  I've been thinking of writing a script that would just transform data 
  from one format to the other, but before writing a bunch of code that's 
  going to be run exactly once, I'm wondering if there a tool out there 
  which I can use to express one-way transformation rules for these databases.


  Thanks,


  Alex.

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