(8.3?  That's even older than what we just migrated from!!!)

No.  Make some views (I'd probably make them "month-sized"), COPY each view from the source db to a file, and then COPY each file to it's relevant target table.

You should also think about a program named pg_bulkload.

https://www.postgresql.org/docs/9.6/sql-copy.html
https://www.postgresql.org/docs/8.3/sql-copy.html


On 3/7/19 7:53 PM, Julie Nishimura wrote:
Thank you Ron! What if dev environment is on 9.6, but prod is on version 8.3? Will posgtres_fdw still be the right option?

Sent from my iPhone

On Mar 6, 2019, at 11:57 PM, Ron <ronljohnso...@gmail.com <mailto:ronljohnso...@gmail.com>> wrote:

On 3/7/19 1:54 AM, Julie Nishimura wrote:
Hello psql friends,
We need to migrate only 6 months worth of data from one instance to another. What would be the easiest way to do it? In Oracle, I would set up dblink. What about postgresql?

postgres_fdw


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Angular momentum makes the world go 'round.

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