Dawid Wysakowicz created FLINK-11191:
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Summary: Exception in code generation when ambiguous columns in
MATCH_RECOGNIZE
Key: FLINK-11191
URL: https://issues.apache.org/jira/browse/FLINK-11191
Project: Flink
Issue Type: Bug
Components: Table API & SQL
Affects Versions: 1.7.0, 1.8.0
Reporter: Dawid Wysakowicz
Assignee: Dawid Wysakowicz
Query:
{code}
SELECT *
FROM Ticker
MATCH_RECOGNIZE (
PARTITION BY symbol, price
ORDER BY proctime
MEASURES
A.symbol AS symbol,
A.price AS price
PATTERN (A)
DEFINE
A AS symbol = 'a'
) AS T
{code}
throws a cryptic exception from the code generation stack that the output arity
is wrong. We should add early validation and throw a meaningful exception.
I've also created a calcite ticket to fix it on calcite's side: [CALCITE-2747]
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