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/* postgres can not */
USE plato;
PRAGMA DisableSimpleColumns;
$shiftSteps=($item) -> { return Cast($item % 4 as Uint8)??0 };
$linear = ($x, $z, $func) -> {
$v = 10 * $z + $x;
$shift = ($item, $sk) -> {return $item << $func($sk)};
return $shift($v, $z)
};
--INSERT INTO Output
SELECT t.*, $linear(cast(key as uint64), cast(subkey as uint64), $shiftSteps) FROM Input as t;
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