Paul Rogers created IMPALA-7898:
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Summary: LiteralExpr fails with class cast expression for some
invalid DECIMAL values
Key: IMPALA-7898
URL: https://issues.apache.org/jira/browse/IMPALA-7898
Project: IMPALA
Issue Type: Bug
Components: Frontend
Affects Versions: Impala 3.0
Reporter: Paul Rogers
Assignee: Paul Rogers
Suppose that we run this simple test:
{code:java}
LiteralExpr.create("123.1", ScalarType.createDecimalType(4, 2));
{code}
This method calls {{NumericLiteral.uncheckedCastTo()}} which will return a
{{CastExpr}}. The code then casts this to a {{LiteralExpr}}, which will fail
with a runtime {{ClassCastException}}.
We should provide a clearer error message such as explaining that the value is
invalid for the given type rather than just throwing a seemingly-unrelated
exception.
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