Warning

SingleStore 9.0 gives you the opportunity to preview, evaluate, and provide feedback on new and upcoming features prior to their general availability. In the interim, SingleStore 8.9 is recommended for production workloads, which can later be upgraded to SingleStore 9.0.

BSON_BUILD_ARRAY

Syntax

BSON_BUILD_ARRAY([value_1, value_2, ..., value_n])

Arguments

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

Return Type

A BSON array.

Remarks

If the input is SQL NULL, it is considered equivalent to BSON NULL and appended to the array.

Examples

Note: The following examples explicitly cast string to BSON for clarity. Similarly, the output is cast to JSON.

SQL

SELECT BSON_BUILD_ARRAY():>JSON AS Result;

+--------+
| Result |
+--------+
| []     |
+--------+

SQL

SELECT BSON_BUILD_ARRAY(1:>BSON, 'true':>BSON,'null':>BSON, '{"$date":"2023-03-14T09:48:10.720Z"}':>BSON, NULL):>JSON AS Result;

+---------------------------------------------------------+
| Result                                                  |
+---------------------------------------------------------+
| [1,true,null,{"$date":"2023-03-14T09:48:10.720Z"},null] |
+---------------------------------------------------------+

Note that in the previous example the SQL NULL is also inserted as BSON NULL in the array.

SQL

SELECT BSON_BUILD_ARRAY('{"$undefined":true}':>BSON,'{"$oid":"641044fd4542e7dc53758df9"}':>BSON, 'true':>BSON, '{"$date":"2023-03-14T09:48:10.720Z"}':>BSON, 'null':>BSON):>JSON AS Result;

+----------------------------------------------------------------------------------------------------------+
| Result                                                                                                   |
+----------------------------------------------------------------------------------------------------------+
| [{"$undefined":true},{"$oid":"641044fd4542e7dc53758df9"},true,{"$date":"2023-03-14T09:48:10.720Z"},null] |
+----------------------------------------------------------------------------------------------------------+