Zoltán Borók-Nagy created IMPALA-14517:
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Summary: Support a wider range of expressions in Iceberg predicate
pushdowns
Key: IMPALA-14517
URL: https://issues.apache.org/jira/browse/IMPALA-14517
Project: IMPALA
Issue Type: Improvement
Reporter: Zoltán Borók-Nagy
Currently Impala expects the exact type for Iceberg predicate pushdown.
E.g. we have the following table:
{noformat}
CREATE TABLE ice_t (i int, d date)
PARTITIONED BY SPEC (month(d))
STORED BY ICEBERG;{noformat}
The following pushes down the predicate:
{noformat}
SELECT * FROM ice_t
WHERE d = DATE '2012-10-10';{noformat}
The following does not:
{noformat}
SELECT * FROM ice_t
WHERE d = '2012-10-10';{noformat}
I.e. even implicit casts are not supported right now.
We should support more expressions in our predicate pushdown logic.
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