Xingcan Cui created FLINK-10014:
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Summary: Fix the decimal literal parameter problem for arithmetic
functions in Table
Key: FLINK-10014
URL: https://issues.apache.org/jira/browse/FLINK-10014
Project: Flink
Issue Type: Improvement
Components: Table API & SQL
Reporter: Xingcan Cui
Most of the arithmetic functions added in Flink only consider double type
parameters (e.g., def log(base: Double, x: Double): Double =...). However, by
Calcite, the decimal literals are automatically cast to BigDecimal, which
cannot be directly applied (e.g., LOG(3.0, 9.0) throws an unsupported call
exception). Explicit type cast can make these functions accessible but seems
not an elegant solution.
We could consider automatically casting the BigDecimal type to Double or adding
the corresponding methods for BigDecimal type.
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