pyarrow.compute.shift_left_checked(x, y, *, memory_pool=None)

Left shift x by y with invalid shift check.

This function will raise an error if y (the amount to shift by) is: (1) negative or (2) greater than or equal to the precision of x. The shift operates as if on the two’s complement representation of the number. In other words, this is equivalent to multiplying x by 2 to the power y, even if overflow occurs. See “shift_left” for a variant that doesn’t fail for an invalid shift amount.

  • x (Array-like or scalar-like) – Argument to compute function

  • y (Array-like or scalar-like) – Argument to compute function

  • memory_pool (pyarrow.MemoryPool, optional) – If not passed, will allocate memory from the default memory pool.