Todd Farmer created ARROW-16600:
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Summary: [Java] Enable configurable scale coercion of BigDecimal
Key: ARROW-16600
URL: https://issues.apache.org/jira/browse/ARROW-16600
Project: Apache Arrow
Issue Type: Improvement
Components: Java
Affects Versions: 8.0.0
Reporter: Todd Farmer
Assignee: Todd Farmer
Per ARROW-16427, JDBC drivers sometimes return ResultSets where the scale of
BigDecimals in a single column differs by row. The existing mapping requires
exact match of scale to the target Arrow vector that was created based on
ResultSetMetaData (or configuration), and when any row does not match exactly,
an Exception is thrown.
To support JDBC drivers where scale may be inconsistent by row, Arrow should
allow a less-strict mode that coerces BigDecimals to target vectors with
greater scale. The default strict behavior should be retained, but it may be
useful to allow coercion to proper target scale.
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