Hi,
So, I need to add an exclude constraint to a postgres table which has a
boolean column, but:
ProgrammingError: (psycopg2.ProgrammingError) data type boolean has no
default operator class for access method "gist"
HINT: You must specify an operator class for the index or define a
default operator class for the data type.
Sounds like the way to do this is:
https://www.postgresql.org/message-id/OfficeNetEmail.2b9.8648e2b7c49ce986.144ee6b67a2%40prod2
create table xx(b bool, tr tsrange, exclude using gist((b::int) with =,
tr with &&));
That, unfortunately makes SQLALchemy's ExcludeConstraint implementation sad:
sqlalchemy/util/_collections.py", line 194, in __getitem__
return self._data[key]
KeyError: '(best::int)'
Before I go and submit a patch to ExcludeConstraint to support
expressions rather than just columns (that looks like a lot of work
:-/), how can I just add a constraint that I supply as text and put in
__table_args__ somehow?
cheers,
Chris
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