Hi,
is there a syntax that sums the values of an array?
That is, having an array like
{1,3,8},{5,6,7}
something like
select arr[1:2][2:3]
gives
{1,3},{6,7}
; what I'd like is:
select arr[1$2][2$3]
gives:
17 (that is, 1+3 + 6+7)
If there is no such operator, would it be complicated adding it to postgres?
I mean: is the "[:]" operator an internal thing (the parser "knows" about it) or is it just like any other operators that can be added ?
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