Important

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BSON_INPUT_STREAM_TO_ARRAY

Syntax

BSON_INPUT_STREAM_TO_ARRAY(<input>)

Arguments

input: A valid BSON array, an expression that evaluates to a valid BSON array, or concatenated BSON documents.

Return Type

A PSQL array.

Examples

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

Convert a BSON array:

SQL

SELECT table_col:>JSON AS Result
FROM TABLE(BSON_INPUT_STREAM_TO_ARRAY('[{"a":1},{"b":2},{"c":3},{"d":4}]':>BSON));

+---------+
| Result  |
+---------+
| {"a":1} |
| {"b":2} |
| {"c":3} |
| {"d":4} |
+---------+

SQL

SELECT table_col:>JSON AS Result
FROM TABLE(BSON_INPUT_STREAM_TO_ARRAY('[{"a":1,"b":"abcdef","c":null},{"b":2,"e":{"f":{"g":[]}}},{"c":3},{}]':>JSON:>BSON));

+-------------------------------+
| Result                        |
+-------------------------------+
| {"a":1,"b":"abcdef","c":null} |
| {"b":2,"e":{"f":{"g":[]}}}    |
| {"c":3}                       |
| {}                            |
+-------------------------------+

Convert concatenated documents:

SQL

SELECT table_col:>JSON AS Result
FROM TABLE(BSON_INPUT_STREAM_TO_ARRAY(x'0C00000010610001000000000C00000010620002000000000C00000010630003000000000C0000001064000400000000'))
AS Result;

+---------+
| Result  |
+---------+
| {"a":1} |
| {"b":2} |
| {"c":3} |
| {"d":4} |
+---------+

where, x'0C00000010610001000000000C00000010620002000000000C00000010630003000000000C0000001064000400000000' is a hex literal that is formed by concatenating the following BSON documents:

Document	Hex Representation
`{"a":1}`	`0C0000001061000100000000`
`{"b":2}`	`0C0000001062000200000000`
`{"c":3}`	`0C0000001063000300000000`
`{"d":4}`	`0C0000001064000400000000`