<<=(_:_:)
Creates an assignment that applies a bitwise left shift.
static func <<= (column: Self, value: some SQLExpressible) -> ColumnAssignment
For example:
Column("mask") <<= 2
Column("mask") <<= Column("other")
Usage:
try dbQueue.write { db in
// UPDATE player SET score = score << 2
try Player.updateAll(db, Column("mask") <<= 2)
}