Hi Michael, So if I'm reading this correctly, the proper way to do my use case is to use partitions of partitions, right?
--Stephen -----Original Message----- From: Michael Paquier [mailto:michael.paqu...@gmail.com] Sent: Tuesday, October 31, 2017 4:06 PM To: Stephen Froehlich <s.froehl...@cablelabs.com> Cc: pgsql-general@postgresql.org Subject: Re: [GENERAL] PG 10 - Trouble with overlap of range partition of two dimensions On Tue, Oct 31, 2017 at 8:36 PM, Stephen Froehlich <s.froehl...@cablelabs.com> wrote: > CREATE TABLE lotsa_data_20171027_src3 PARTITION OF lotsa_data > FOR VALUES FROM ('2017-10-26 18:00:00-06', 3) TO ('2017-10-27 > 17:59:59.999-06', 3); > ERROR: partition " lotsa_data_20171027_src1" would overlap partition > "lotsa_data_20171027_src3" > > Why am I getting this error? The answer is in the documentation: https://www.postgresql.org/docs/devel/static/sql-createtable.html The rules of such partitions is bound to row-wise comparisons. "For example, given PARTITION BY RANGE (x,y), a partition bound FROM (1, 2) TO (3, 4) allows x=1 with any y>=2, x=2 with any non-null y, and x=3 with any y<4." So in your example and by comparing with the docs, the first partition allows start_time = '2017-10-26 18:00:00-06' with source_no >= 1, and the second partition allows source_no >= 3 which overlaps with the first one. -- Michael -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
