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https://issues.apache.org/jira/browse/FLINK-38692?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Nuyanzin updated FLINK-38692:
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Description:
In case of query with a number of {{OR}} operators it might be an issue
here it is an example of query which works ok, however it might be noticed
already for that query that condition is exploading
{code:sql}
SELECT * FROM T WHERE (f1 < 1 AND TRIM(f2) = '' OR f1 < 3 AND TRY_CAST(TRIM(f2)
AS INTEGER) > 1) OR (f1 > 0 AND f2 IS NOT NULL OR f1 > 10 AND TRIM(f2) <> '')
UNION SELECT * FROM T WHERE (f1 < 1 AND TRIM(f2) = '' OR f1 < 3 AND
TRY_CAST(TRIM(f2) AS INTEGER) > 1) OR (f1 > 0 AND f2 IS NOT NULL OR f1 > 10 AND
TRIM(f2) <> '')
INTERSECT SELECT * FROM T WHERE (f1 < 1 AND TRIM(f2) = '' OR f1 < 3 AND
TRY_CAST(TRIM(f2) AS INTEGER) > 1) OR (f1 > 0 AND f2 IS NOT NULL OR f1 > 10 AND
TRIM(f2) <> ''
{code}
should be executed in way like it is done at
PushCalcPastChangelogNormalizeRuleTest.java
> CNF in ChangelogNormalizeRule might lead to OOM
> -----------------------------------------------
>
> Key: FLINK-38692
> URL: https://issues.apache.org/jira/browse/FLINK-38692
> Project: Flink
> Issue Type: Bug
> Reporter: Sergey Nuyanzin
> Assignee: Sergey Nuyanzin
> Priority: Major
>
> In case of query with a number of {{OR}} operators it might be an issue
> here it is an example of query which works ok, however it might be noticed
> already for that query that condition is exploading
> {code:sql}
> SELECT * FROM T WHERE (f1 < 1 AND TRIM(f2) = '' OR f1 < 3 AND
> TRY_CAST(TRIM(f2) AS INTEGER) > 1) OR (f1 > 0 AND f2 IS NOT NULL OR f1 > 10
> AND TRIM(f2) <> '')
> UNION SELECT * FROM T WHERE (f1 < 1 AND TRIM(f2) = '' OR f1 < 3 AND
> TRY_CAST(TRIM(f2) AS INTEGER) > 1) OR (f1 > 0 AND f2 IS NOT NULL OR f1 > 10
> AND TRIM(f2) <> '')
> INTERSECT SELECT * FROM T WHERE (f1 < 1 AND TRIM(f2) = '' OR f1 < 3 AND
> TRY_CAST(TRIM(f2) AS INTEGER) > 1) OR (f1 > 0 AND f2 IS NOT NULL OR f1 > 10
> AND TRIM(f2) <> ''
> {code}
> should be executed in way like it is done at
> PushCalcPastChangelogNormalizeRuleTest.java
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