ClickHouse/docs/en/sql-reference/aggregate-functions/reference/groupbitxor.md
Ivan Blinkov 7170f3c534
[docs] split aggregate function and system table references (#11742)
* prefer relative links from root

* wip

* split aggregate function reference

* split system tables
2020-06-18 11:24:31 +03:00

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---
toc_priority: 127
---
# groupBitXor {#groupbitxor}
Applies bitwise `XOR` for series of numbers.
``` sql
groupBitXor(expr)
```
**Parameters**
`expr` An expression that results in `UInt*` type.
**Return value**
Value of the `UInt*` type.
**Example**
Test data:
``` text
binary decimal
00101100 = 44
00011100 = 28
00001101 = 13
01010101 = 85
```
Query:
``` sql
SELECT groupBitXor(num) FROM t
```
Where `num` is the column with the test data.
Result:
``` text
binary decimal
01101000 = 104
```