Re: pg_dump | pg_sql: insert commands and foreign key constraints

Oh good.  That's almost what I did:

I made a schema only dump, then a data only dump with --inserts.  Then I commented-out the constraints from the schema.  Then I loaded the data.  Unfortunately, the INSERT statements take 24 hours instead of 4 hours to restore.  When you say the "default" options - what format does that write?  Should I have used -Fp to make a plain text backup but not --inserts?  Then it would be doing a COPY instead of an INSERT and maybe that would be faster.  Oh well.

Tomasz Ostrowski wrote:

On 2008-09-23 19:03, William Garrison wrote: 

I have several .SQL files created from pg_dump, and I find that when I 
feed them into psql that I get tons of foreign key errors because the 
INSERT statements in the dump are not in the correct order.  After 
reading the docs, mailing lists, and googling, I see posts saying this 
problem was fixed back in the 7.x days.   

It is not fixed and is sometimes not possible to fix for data only dumps.
 

Since I did a data only dump, I think my only option is to create the 
schema, manually disable all the constraints, then restore, then 
re-enable the constraints.   

Much easier:

1. Create a schema with all constraints etc.
2. Dump this empty database with pg_dump with default options to
empty_database.sql.
3. Split empty_database.sql file to 2 files - tables.sql and
constraints.sql - all constraints will be at the end of empty_database.sql
4. drop database, create empty one, import tables.sql, import your
data-only backup, import constraints.sql.

Regards
Tometzky