Functional indices with const params. - Mailing list pgsql-general

Hello,

is it possible to create functional indices with constant params?

I tried to do
create index ix_s_m on stats(date_part('month', sent_date));

And get
ERROR:  parser: parse error at or near "'"

If it is not possible is there any workarounds for this?

--
Sincerely Yours,
Denis Perchine

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