ARRAY_PUSHBACK
array_pushback
array_pushback
description
Syntax
Array<T> array_pushback(Array<T> arr, T value)
将value添加到数组的尾部.
Returned value
返回添加value后的数组
类型: Array.
notice
只支持在向量化引擎中使用
example
mysql> select array_pushback([1, 2], 3);
+---------------------------------+
| array_pushback(ARRAY(1, 2), 3) |
+---------------------------------+
| [1, 2, 3] |
+---------------------------------+
mysql> select col3, array_pushback(col3, 6) from array_test;
+-----------+----------------------------+
| col3 | array_pushback(`col3`, 6) |
+-----------+----------------------------+
| [3, 4, 5] | [3, 4, 5, 6] |
| [NULL] | [NULL, 6] |
| NULL | NULL |
| [] | [6] |
+-----------+----------------------------+
mysql> select col1, col3, array_pushback(col3, col1) from array_test;
+------+-----------+---------------------------------+
| col1 | col3 | array_pushback(`col3`, `col1`) |
+------+-----------+---------------------------------+
| 0 | [3, 4, 5] | [3, 4, 5, 0] |
| 1 | [NULL] | [NULL, 1] |
| 2 | NULL | NULL |
| 3 | [] | [3] |
+------+-----------+---------------------------------+
keywords
ARRAY,PUSHBACK,ARRAY_PUSHBACK
