File formats
Parquet page skipping based on page index in Apache Impala
Avoid Materilization of columns in Filtered Rows (Parquet late materialization)
Support ORC Complex Types in Impala
Catalog
Proposal for new approach to Impala catalog (aka Local catalog)
Runtime
SQL extensions
Consistent timestamp types in Hadoop SQL engines
Notes for UNNEST() implementation in Apache Impala
Impala Column Masking and Row Filtering Design
IMPALA-4018: SQL:2016 datetime format support and CAST(..FORMAT..)
Support User-Defined Table Function (UDTF)
Support Bucketed Table And Related Optimizations
Iceberg
Writing Iceberg tables from Impala
Writing Iceberg V2 tables in Impala
Reading V2 Iceberg tables in Impala - Position-based deletes