[jira] [Created] (CALCITE-795) Precision loss wen sending a decimal number via the remote JSON service

["Lukas Lalinsky (JIRA)" <ji...@apache.org>]

Lukas Lalinsky created CALCITE-795:
--------------------------------------

             Summary: Precision loss wen sending a decimal number via the remote JSON service
                 Key: CALCITE-795
                 URL: https://issues.apache.org/jira/browse/CALCITE-795
             Project: Calcite
          Issue Type: Bug
            Reporter: Lukas Lalinsky
            Assignee: Julian Hyde


When sending for example {code}{"type":"NUMBER","value":"333.333"}{code} to the "fetch" request of the remote JSON service, the exact value will not be kept and after one UPSERT/SELECT roundtrip in Phoenix I will get 333.332 back.

Interestingly enough, this worked in Calcite 1.2 before the TypedValue class was introduced, but I think that working just by accident.

The attached patch changes changes the Jackson object mapper to decode any JSON float to BigDecimal, unless the code explicitly asks for Float/Double. I think that shouldn't break anything and it solves this problem.





--
This message was sent by Atlassian JIRA
(v6.3.4#6332)