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https://issues.apache.org/jira/browse/CALCITE-2247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde updated CALCITE-2247:
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Description:
Simplify expressions like: {code}a = 1 AND (a = 1 OR a = 2){code} to {code}a =
1{code}
Conditions to apply will be:
* in an AND condition there exists a comparison(c) and an OR (o)
* o and c only reference 1 variable
See HIVE-19097 for more info.
was:
simplify expressions like: {a = 1 && (a=1 || a=2)} to {a=1}
conditions to apply will be:
* in an AND condition exists a comparision(c) and an OR (o)
* o and c only reference 1 variable
HIVE-19097 for more info
> Add rule to push in condition condition into a related disjunctive expression
> -----------------------------------------------------------------------------
>
> Key: CALCITE-2247
> URL: https://issues.apache.org/jira/browse/CALCITE-2247
> Project: Calcite
> Issue Type: Improvement
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
>
> Simplify expressions like: {code}a = 1 AND (a = 1 OR a = 2){code} to {code}a
> = 1{code}
> Conditions to apply will be:
> * in an AND condition there exists a comparison(c) and an OR (o)
> * o and c only reference 1 variable
> See HIVE-19097 for more info.
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