> On Jul 23, 2018, at 12:20, Mads Jensen <m...@inducks.org> wrote:
> 
> Q(published__gt=datetime.date(2017, 10, 1))
> =>
> "table"."published" > '2017-10-01'::timestamp;
> 
> is unfortunate because it turns the function mutable, and the index can 
> therefore not be created (exact error message can be seen in the Jenkins 
> output). 

I think the issue is that you are mixing TIMESTAMP and TIMESTAMPTZ here

xof=# create table i (p timestamptz);
CREATE TABLE
xof=# create index on i(p) where p > '2011-01-01'::timestamp;
ERROR:  functions in index predicate must be marked IMMUTABLE
xof=# create index on i(p) where p > '2011-01-01'::timestamptz;
CREATE INDEX

xof=# create table i (p timestamp);
CREATE TABLE
xof=# create index on i(p) where p > '2011-01-01'::timestamptz;
ERROR:  functions in index predicate must be marked IMMUTABLE
xof=# create index on i(p) where p > '2011-01-01'::timestamp;
CREATE INDEX

--
-- Christophe Pettus
   x...@thebuild.com

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