Jens Deppe created GEODE-8624:
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Summary: Improve INCRBYFLOAT accuracy for very large values
Key: GEODE-8624
URL: https://issues.apache.org/jira/browse/GEODE-8624
Project: Geode
Issue Type: Improvement
Components: redis
Reporter: Jens Deppe
Currently native redis appears to be able to apply {{INCRBYFLOAT}} on values
that are below the max of unsigned long long (18446744073709551615). However,
since we're treating numbers as {{double}}s we can lose precision for very
large values. For example:
{noformat}
set val 18446744073709551614
incrbyfloat val 1{noformat}
incorrectly returns {{18446744073709552000}}
Native redis produces a correct result.
We should consider switching to using {{BigInteger}} for all commands which
perform calculations: {{INCR, INCR, INCRBYFLOAT, HINCRBY, HINCRBYFLOAT}}.
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