array_position

description

Syntax

BIGINT array_position(ARRAY<T> arr, T value)

Returns a position/index of first occurrence of the value in the given array.

1. position - value position in array (starts with 1);
2. 0        - if value does not present in the array;
3. NULL     - when array is NULL or value is NULL.

notice

Only supported in vectorized engine

example

1. mysql> set enable_vectorized_engine=true;

3. mysql> SELECT id,c_array,array_position(c_array, 5) FROM `array_test`;
4. +------+-----------------+------------------------------+
5. | id   | c_array         | array_position(`c_array`, 5) |
6. +------+-----------------+------------------------------+
7. |    1 | [1, 2, 3, 4, 5] |                            5 |
8. |    2 | [6, 7, 8]       |                            0 |
9. |    3 | []              |                            0 |
10. |    4 | NULL            |                         NULL |
11. +------+-----------------+------------------------------+

keywords

ARRAY,POSITION,ARRAY_POSITION