On 03/14/2018 06:19 AM, Jeremy Finzel wrote:
Hello!  From all that I can tell, it is not possible using a btree_gist index as a primary key.  If so, why not?  I have a table with this gist

https://www.postgresql.org/docs/10/static/btree-gist.html

"In general, these operator classes will not outperform the equivalent standard B-tree index methods, and they lack one major feature of the standard B-tree code: the ability to enforce uniqueness."

index which truly ought to be its primary key.  as_of_date is of range date type:

EXCLUDE USING gist (id WITH =, as_of_date WITH &&)

Any direction here would be much appreciated.

Right now, I am forced to create a redundant btree index UNIQUE, btree (id, lower(as_of_date)) in order to have a primary key on the table.

Thanks!
Jeremy


--
Adrian Klaver
adrian.kla...@aklaver.com

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