unifiedExpr

unifiedExpr(objs, optrs)

objs is a tuple with no less than 2 elements.

optrs is a vector of binary operators and the length is size(objs)-1.

Connect the operands in objs with the binary operators in optrs to generate metacode of a multivariate expression. You can execute the metacode with function eval.

unifiedExpr((1, 2), add)
// output
<1 + 2>

t=table(1..3 as price1, 4..6 as price2, 5..7 as price3)
a=sqlColAlias(unifiedExpr((sqlCol("price1"), sqlCol("price2"), sqlCol("price3")), take(add, 2)))
sql(select=(sqlCol(`price1),sqlCol(`price2),sqlCol(`price3),a), from=t).eval()

Related function: binaryExpr