doris/docs/en/sql-manual/sql-functions/array-functions/array_position.md

title, language

title	language
array_position	en

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.

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

notice

Only supported in vectorized engine

example

mysql> set enable_vectorized_engine=true;

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

keywords

ARRAY_POSITION