[jira] [Created] (FLINK-15538) Separate decimal implementations into separate sub-classes

[Shang Yuanchun (Jira)]

Liya Fan created FLINK-15538:
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             Summary: Separate decimal implementations into separate sub-classes
                 Key: FLINK-15538
                 URL: https://issues.apache.org/jira/browse/FLINK-15538
             Project: Flink
          Issue Type: Improvement
          Components: Table SQL / Runtime
            Reporter: Liya Fan


The current implementation of Decimal values have two (somewhat independent) implementations: one is based on Long, while the other is based on BigDecimal.

This makes the Decmial class not clear (both implementations cluttered in a single class) and less efficient (each method involves a if-else branch).

So in this issue, we make Decimal an abstract class, and separate the two implementation into two sub-classes. This makes the code clearer and more efficient.



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