Bitwise unsigned right shift (urshift, >>>)

[ 1 Description ] [ 2 How does it work in the search window? ] [ 3 How does it work in LINQ? ]

Description

Creates a new column that shifts to the right the bits of the values in the first argument as many positions as specified in the second argument. The result is then transformed and given in decimal format.

Unlike the Bitwise right shift (rshift, >>) operation, this one doesn't preserve the sign of the original number and always fills the vacant positions left by the shifted bits with zeros. This means that for positive numbers, both the Bitwise right shift and Bitwise unsigned right shift operations will produce the same result, but they will return different outputs for negative numbers.

For more information about bitwise shifts, see this article.

How does it work in the search window?

Select Create column in the search window toolbar, then select the Bitwise unsigned right shift operation. You need to specify two arguments:

Argument	Data type	More information

Argument	Data type	More information
Number (mandatory)	integer	Field whose values you want to transform.
Number (mandatory)	integer	Number of places to shift to the right.

The data type of the values in the new column is integer.

Example

The examples in this article use values in a data table generated from the following CSV file.

If you want to try the example for yourself, download the file and upload it to your domain clicking Data upload in the navigation pane. Name the new table my.upload.sample.data and select Current date as Date parsing type. Learn more about uploading data in Uploading log files.

After receiving the confirmation message, you can access the table from the Finder, selecting my → upload → sample → data. When you upload data from a file, all the information is included in a single column called message. To split the values and extract those we need for this operation into a new column, you can use the Split operation. Click Toggle Query Editor in the search window toolbar and paste the following LINQ query to save time:

from my.upload.sample.data
select split(message, ";", 17) as posNumbers1
select int(posNumbers1) as posNumbers1_int

We want to shift 2 positions to the right the bits of the values in the posNumbers1_int column, and we don't want to preserve the sign bit. To do it, we will create a new column using the Bitwise unsigned right shift operation. Let's call the new column urshift_2

The arguments needed to create the new column are:

Number - posNumbers1_int column
Number - Click the pencil icon and enter 2

Click Create column and you will see the following result:

How does it work in LINQ?

Use the operator select... as... and add the operation syntax to create the new column. These are the valid formats of the Bitwise unsigned right shift operation:

urshift(integer1, integer2)
integer1 >>> integer2

Example

You can copy the following LINQ scripts and try the above example on the my.upload.sample.data table.

from my.upload.sample.data
select split(message, ";", 17) as posNumbers1
select int(posNumbers1) as posNumbers1_int
  select urshift(posNumbers1_int, 2) as urshift_2

or

from my.upload.sample.data
select split(message, ";", 17) as posNumbers1
select int(posNumbers1) as posNumbers1_int
  select posNumbers1_int >>> 2 as urshift_2