IS_ BSON_ NULL
Warning
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Returns a TINYINT
1 for nullable BSON input values, and returns a TINYINT
0 for other values.
By default, empty values, BSON NULL
, and BSON Undefined
are interpreted as nullable.
Syntax
IS_BSON_NULL(<value>)
Argument
<value>
: A valid BSON value or an expression that evaluates to a valid BSON value.
Return Type
SingleStore TINYINT
type.
Remarks
The following table specifies the value returned by IS_
function for each input value:
Input Value |
Output Value |
---|---|
|
1 |
BSON |
1 |
BSON |
1 |
Any other value |
0 |
Examples
Here are a few examples that demonstrate the behavior of IS_
function:
SELECT IS_BSON_NULL(NULL) AS Result;
+--------+
| Result |
+--------+
| 1 |
+--------+
SELECT IS_BSON_NULL('null':>BSON) AS Result;
+--------+
| Result |
+--------+
| 1 |
+--------+
SELECT IS_BSON_NULL('{"$undefined":true}':>BSON) AS Result;
+--------+
| Result |
+--------+
| 1 |
+--------+
SELECT IS_BSON_NULL('"random string"') AS Result;
+--------+
| Result |
+--------+
| 0 |
+--------+
SELECT IS_BSON_NULL(1234) AS Result;
+--------+
| Result |
+--------+
| 0 |
+--------+
Last modified: April 4, 2024