doris/docs/en/sql-manual/sql-functions/table-functions/explode-split.md

title, language

title	language
explode_split	en

explode_split

description

Table functions must be used in conjunction with Lateral View.

Split a string into multiple substrings according to the specified delimiter.

grammar:

explode_split(str, delimiter)

example

Original table data:

mysql> select * from example1 order by k1;
+------+---------+
| k1   | k2      |
+------+---------+
|    1 |         |
|    2 | NULL    |
|    3 | ,       |
|    4 | 1       |
|    5 | 1,2,3   |
|    6 | a, b, c |
+------+---------+

Lateral View:

mysql> select k1, e1 from example1 lateral view explode_split(k2, ',') tmp1 as e1 where k1 = 1 order by k1, e1;
+------+------+
| k1   | e1   |
+------+------+
|    1 |      |
+------+------+

mysql> select k1, e1 from example1 lateral view explode_split(k2, ',') tmp1 as e1 where k1 = 2 order by k1, e1;
+------+------+
| k1   | e1   |
+------+------+
|    2 | NULL |
+------+------+

mysql> select k1, e1 from example1 lateral view explode_split(k2, ',') tmp1 as e1 where k1 = 3 order by k1, e1;
+------+------+
| k1   | e1   |
+------+------+
|    3 |      |
|    3 |      |
+------+------+

mysql> select k1, e1 from example1 lateral view explode_split(k2, ',') tmp1 as e1 where k1 = 4 order by k1, e1;
+------+------+
| k1   | e1   |
+------+------+
|    4 | 1    |
+------+------+

mysql> select k1, e1 from example1 lateral view explode_split(k2, ',') tmp1 as e1 where k1 = 5 order by k1, e1;
+------+------+
| k1   | e1   |
+------+------+
|    5 | 1    |
|    5 | 2    |
|    5 | 3    |
+------+------+

mysql> select k1, e1 from example1 lateral view explode_split(k2, ',') tmp1 as e1 where k1 = 6 order by k1, e1;
+------+------+
| k1   | e1   |
+------+------+
|    6 |  b   |
|    6 |  c   |
|    6 | a    |
+------+------+

keyword

explode_split