Re: Difference between CAST(v AS t) and v::t

Tom Lane <tgl@sss.pgh.pa.us> writes:

> ... but expression-index syntax has the restriction that you need
> parentheses around an expression unless it is, or at least looks like,
> a function call.  CAST() looks enough like a function call for this
> purpose, v::t does not.
>
> I think there is relevant documentation for this near CREATE INDEX;
> it doesn't seem like the province of the typecast docs to explain
> the weirdnesses of index syntax.

Thank you Tom, I really missed the explanation in CREATE INDEX doc entry!

ciao, lele.
-- 
nickname: Lele Gaifax | Quando vivrò di quello che ho pensato ieri
real: Emanuele Gaifas | comincerò ad aver paura di chi mi copia.
lele@metapensiero.it  |                 -- Fortunato Depero, 1929.