Zoltán Borók-Nagy created IMPALA-14737:
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Summary: 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
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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