public static StringExpression lpad(Expression<String> in, int length) {
        return Expressions.stringOperation(Ops.StringOps.LPAD, in, ConstantImpl.create(length));
    }
Create a {@code lpad(in, length)} expression

<p>Returns in left-padded to length characters</p>

@param in string to be padded
@param length target length
@return lpad(in, length)
querydsl-core/src/main/java/com/querydsl/core/types/dsl/StringExpressions.java