On Thu, 2020-10-15 at 20:58 +0000, Dirk Krautschick wrote: > because of a migration from DB2 we have a lot of timestamps like > > 9999-12-31-00.00.00.000000 > > What would be the best way to handle this in Postgres also related > to overhead and performance (index usage?). > > Or is > > TO_TIMESTAMP('9999-12-31-00.00.00.000000', 'YYYY-MM-DD-HH24.MI.SS.US') > > the only way? And isn't it possible to define this like NLS parameters in Oracle > system wide? I would replace them with 'infinity', which is a valid timestamp value in PostgreSQL. Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com