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

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# explode_bitmap

## description

Table functions must be used in conjunction with Lateral View.

Expand a bitmap type.

grammar:

```
explode_bitmap(bitmap)
```

## example

Original table data:

```
mysql> select k1 from example1 order by k1;
+------+
| k1   |
+------+
|    1 |
|    2 |
|    3 |
|    4 |
|    5 |
|    6 |
+------+
```

Lateral View:

```
mysql> select k1, e1 from example1 lateral view explode_bitmap(bitmap_empty()) tmp1 as e1 order by k1, e1;
+------+------+
| k1   | e1   |
+------+------+
|    1 | NULL |
|    2 | NULL |
|    3 | NULL |
|    4 | NULL |
|    5 | NULL |
|    6 | NULL |
+------+------+

mysql> select k1, e1 from example1 lateral view explode_bitmap(bitmap_from_string("1")) tmp1 as e1 order by k1, e1;
+------+------+
| k1   | e1   |
+------+------+
|    1 |    1 |
|    2 |    1 |
|    3 |    1 |
|    4 |    1 |
|    5 |    1 |
|    6 |    1 |
+------+------+

mysql> select k1, e1 from example1 lateral view explode_bitmap(bitmap_from_string("1,2")) tmp1 as e1 order by k1, e1;
+------+------+
| k1   | e1   |
+------+------+
|    1 |    1 |
|    1 |    2 |
|    2 |    1 |
|    2 |    2 |
|    3 |    1 |
|    3 |    2 |
|    4 |    1 |
|    4 |    2 |
|    5 |    1 |
|    5 |    2 |
|    6 |    1 |
|    6 |    2 |
+------+------+

mysql> select k1, e1 from example1 lateral view explode_bitmap(bitmap_from_string("1,1000")) tmp1 as e1 order by k1, e1;
+------+------+
| k1   | e1   |
+------+------+
|    1 |    1 |
|    1 | 1000 |
|    2 |    1 |
|    2 | 1000 |
|    3 |    1 |
|    3 | 1000 |
|    4 |    1 |
|    4 | 1000 |
|    5 |    1 |
|    5 | 1000 |
|    6 |    1 |
|    6 | 1000 |
+------+------+

mysql> select k1, e1, e2 from example1
lateral view explode_bitmap(bitmap_from_string("1,1000")) tmp1 as e1
lateral view explode_split("a,b", ",") tmp2 as e2 order by k1, e1, e2;
+------+------+------+
| k1   | e1   | e2   |
+------+------+------+
|    1 |    1 | a    |
|    1 |    1 | b    |
|    1 | 1000 | a    |
|    1 | 1000 | b    |
|    2 |    1 | a    |
|    2 |    1 | b    |
|    2 | 1000 | a    |
|    2 | 1000 | b    |
|    3 |    1 | a    |
|    3 |    1 | b    |
|    3 | 1000 | a    |
|    3 | 1000 | b    |
|    4 |    1 | a    |
|    4 |    1 | b    |
|    4 | 1000 | a    |
|    4 | 1000 | b    |
|    5 |    1 | a    |
|    5 |    1 | b    |
|    5 | 1000 | a    |
|    5 | 1000 | b    |
|    6 |    1 | a    |
|    6 |    1 | b    |
|    6 | 1000 | a    |
|    6 | 1000 | b    |
+------+------+------+
```

## keyword

    explode_bitmap