> On Fri, Oct 08, 2010 at 11:46:31AM +0000, Johannes Meidert wrote: > > pg_dump dumps tables in the worng order for constraints (table a refrences > > key of table b, but table a is dumped first). As a consequence an import > > fails, because the required foreign key (in table b) is missing when table a > > is imported. > > Work around: import twice. > > Is this fixed in version 9.0? > > Could you give details of exactly what pg_dump commands you used? By default > pg_dump dumps tables and data without any constraints first, and then adds > constraints in a valid order. If, however, you do something like dump the > schema first, and then dump data into that schema, there's little pg_dump can > do to avoid problems such as you describe. >
Thank you for the explanation. I dumped with --data-only because my setup creates the tables in advance. The correct procedure seems to be if a database exists dump db import db else create tables