---
{
    "title": "bitmap_and_not",
    "language": "en"
}
---

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## bitmap_and_not
### description
#### Syntax

`BITMAP BITMAP_AND_NOT(BITMAP lhs, BITMAP rhs)`

Calculate the set after lhs minus intersection of two input bitmaps, return the new bitmap.

### example

```
mysql> select bitmap_count(bitmap_and_not(bitmap_from_string('1,2,3'),bitmap_from_string('3,4,5'))) cnt;
+------+
| cnt  |
+------+
|    2 |
+------+
```

### keywords

    BITMAP_AND_NOT,BITMAP