vector_dims()

Function Description

The vector_dims function is used to determine the dimensions of a vector.

Function Syntax

> SELECT vector_dims(vector) AS dimension_count FROM table_name;

Example

drop table if exists vec_table;
create table vec_table(a int, b vecf32(3), c vecf64(3));
insert into vec_table values(1, "[1,2,3]", "[4,5,6]");
insert into vec_table values(2, "[7,8,9]", "[1,2,3]");
mysql> select * from vec_table;
+-------+--------------------------+
| a | b | c |
+-------+--------------------------+
| 1 | [1, 2, 3] | [4, 5, 6] |
| 2 | [7, 8, 9] | [1, 2, 3] |
+-------+--------------------------+
2 row in set (0.00 sec)

mysql> select vector_dims(b) from vec_table;
+---------------------+
| vector_dims(b) |
+---------------------+
| 3 |
| 3 |
+---------------------+
2 row in set (0.01 sec)