Important

The SingleStore 9.1 release candidate (RC) is available now. It will be promoted to general availability (GA) soon and at that time it will be renamed to SingleStore 10.

In the interim, SingleStore 9.1 RC can be used to preview, evaluate, and provide feedback on the new and upcoming features in SingleStore 10, while SingleStore 9.0 is recommended for production workloads.

BSON_GET_TYPE

Syntax

BSON_GET_TYPE(<input>)

Argument

<input>: A valid BSON value or an expression that evaluates to a valid BSON value.

Return Type

A string.

Remarks

If NULL is specified as the input value, returns "null" as the result.
If the input is an invalid BSON value, returns "missing" as the result.

Examples

Note: The following examples explicitly cast string to BSON for clarity.

SQL

SELECT BSON_GET_TYPE( '{"a":1, "b":2, "c":"abc"}':>BSON) AS Type;

+--------+
| Type   |
+--------+
| object |
+--------+

SQL

SELECT BSON_GET_TYPE('[1, true, null, [7,8,9], "abc"]':>BSON) AS Type;

+-------+
| Type  |
+-------+
| array |
+-------+

SQL

SELECT BSON_GET_TYPE('true':>BSON)  AS Type;

+------+
| Type |
+------+
| bool |
+------+

SQL

SELECT BSON_GET_TYPE('"abc"':>BSON) AS Type;

+--------+
| Type   |
+--------+
| string |
+--------+

SQL

SELECT BSON_GET_TYPE('null':>BSON) AS Type;

+------+
| Type |
+------+
| null |
+------+

SQL

SELECT BSON_GET_TYPE("abc") AS Type;

+---------+
| Type    |
+---------+
| missing |
+---------+