Kevin Liew created CALCITE-972:
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Summary: Decimal data sent by Avatica cannot be interpreted by
some clients
Key: CALCITE-972
URL: https://issues.apache.org/jira/browse/CALCITE-972
Project: Calcite
Issue Type: Bug
Components: avatica
Affects Versions: 1.5.0
Reporter: Kevin Liew
Assignee: Julian Hyde
JSON specifies a 'number' data type which does not differentiate between
integer and floating-point values. The encoding for JSON numbers is
implementation-specific. Libraries such as RapidJSON can treat all non-integer
values as 'double' while still being compliant with JSON specifications. As a
result, decimal values sent by Phoenix will lose precision on the client side.
Decimal data should be sent as a string. If it is sent as a number, we cannot
be expect that all JSON-spec compliant library will handle it properly.
ie. Phoenix sends a decimal as a JSON number, but Rapidjson can only extract
JSON numbers as integer or double because the C++ language does not have native
decimal support.
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