VARBYTE operators - Amazon Redshift
Supported operatorsExamples
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VARBYTE operators

The following table lists the VARBYTE operators. The operator works with binary value of data type VARBYTE. If one or both inputs is null, the result is null.

Supported operators

Operator Description Return type
< Less than BOOLEAN
<= Less than or equal BOOLEAN
= Equal BOOLEAN
> Greater than BOOLEAN
>= Greater than or equal BOOLEAN
!= or <> Not equal BOOLEAN
|| Concatenation VARBYTE
+ Concatenation VARBYTE
~ Bitwise not VARBYTE
& Bitwise and VARBYTE
| Bitwise or VARBYTE
# Bitwise xor VARBYTE

Examples

In the following examples, the value of 'a'::VARBYTE is 61 and the value of 'b'::VARBYTE is 62. The :: casts the strings into the VARBYTE data type. For more information about casting data types, see CAST.

To compare if 'a' is less than 'b' using the < operator, use the following example.

SELECT 'a'::VARBYTE < 'b'::VARBYTE AS less_than;
               
+-----------+
| less_than |
+-----------+
| true      |
+-----------+

To compare if 'a' equals 'b' using the = operator, use the following example.

SELECT 'a'::VARBYTE = 'b'::VARBYTE AS equal;
               
+-------+
| equal |
+-------+
| false |
+-------+

To concatenate two binary values using the || operator, use the following example.

SELECT 'a'::VARBYTE || 'b'::VARBYTE AS concat;
               
+--------+
| concat |
+--------+
|   6162 |
+--------+

To concatenate two binary values using the + operator, use the following example.

SELECT 'a'::VARBYTE + 'b'::VARBYTE AS concat;
               
+--------+
| concat |
+--------+
|   6162 |
+--------+

To negate each bit of the input binary value using the FROM_VARBYTE function, use the following example. The string 'a' evaluates to 01100001. For more information, see FROM_VARBYTE.

SELECT FROM_VARBYTE(~'a'::VARBYTE, 'binary');
               
+--------------+
| from_varbyte |
+--------------+
|     10011110 |
+--------------+

To apply the & operator on the two input binary values, use the following example. The string 'a' evaluates to 01100001 and 'b' evaluates to 01100010.

SELECT FROM_VARBYTE('a'::VARBYTE & 'b'::VARBYTE, 'binary');
               
+--------------+
| from_varbyte |
+--------------+
|     01100000 |
+--------------+