Summary

Fetching data decimal data  from CLOB looses precision

Environment

son lib 1.21.1

linuxamd64.

gcc 8

How to Reproduce

For  a data '{"a": 0.1234567890123456789012345, "b": "0.1234567890123456789012345" } after calling bson_init_from_json

when trying to access 'a ' we are getting 0.12345678901234568. we need full data. 

on analysis what we noticed is that the type of the data is BSON_TYPE_DOUBLE so 16 precisions are considered .

is this behaviour expected? is there any way to preserve the full precision. I know decfloat will, do but how can we control the conversion in  bson_init_from_json.

Additional Background

Please provide any additional background information that may be helpful in diagnosing the bug.