[jira] [Updated] (IMPALA-14737) Pushdown LIKE predicates to Iceberg

["Zoltán Borók-Nagy (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-14737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zoltán Borók-Nagy updated IMPALA-14737:
---------------------------------------
    Labels: impala-iceberg ramp-up  (was: impala-iceberg)

> Pushdown LIKE predicates to Iceberg
> -----------------------------------
>
>                 Key: IMPALA-14737
>                 URL: https://issues.apache.org/jira/browse/IMPALA-14737
>             Project: IMPALA
>          Issue Type: Improvement
>            Reporter: Zoltán Borók-Nagy
>            Priority: Major
>              Labels: impala-iceberg, ramp-up
>
> Iceberg's [https://github.com/apache/iceberg/blob/main/api/src/main/java/org/apache/iceberg/expressions/Expressions.java] supports more possibilities than what we currently use.
> The most important one is probably
>  * startsWith()
> I.e., when we have the following predicate: {{string_col LIKE 'asdf%xyz'}}
> We should push down:
>  * startsWith("string_col", "asdf")
> I.e., the non-wildcard prefix of the string.
> It should work for UTF-8 strings.



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