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Virtual Field Metadata for Semi-Structured (VARIANT) Columns

proposalIceberg Improvement Proposal (spec/major changes/etc)Iceberg Improvement Proposal (spec/major changes/etc)

Status: Open.

#16064 In apache/iceberg;

· jeffbuser opened on Apr 20, 2026

EOF not handled correctly in cloud storage InputStream implementations

bugSomething isn't workingSomething isn't working

Status: Open.

#16062 In apache/iceberg;

· anoopj opened on Apr 20, 2026

REST Catalog (iceberg-rest-fixture) allows dropping parent namespaces containing child namespaces with tables, violating OpenAPI spec

bugSomething isn't workingSomething isn't working

Status: Open.

#16060 In apache/iceberg;

· sagib1 opened on Apr 20, 2026

Support dynamic timestamp args in Iceberg CALL

improvementPR that improves existing functionalityPR that improves existing functionality

Status: Open.

#16057 In apache/iceberg;

· wangyum opened on Apr 20, 2026

Parquet: Filter pushdown throws UnsupportedOperationException for decimal and UUID predicates

bugSomething isn't workingSomething isn't working

Status: Open.

#16035 In apache/iceberg;

· laserninja opened on Apr 18, 2026

AWS, GCP: Race condition on volatile mutable storageCredentials list in S3FileIO and GCSFileIO`

bugSomething isn't workingSomething isn't working

Status: Open.

#16034 In apache/iceberg;

· laserninja opened on Apr 18, 2026

Core: Puffin LZ4 footer compression throws UnsupportedOperationException at runtime

bugSomething isn't workingSomething isn't working

Status: Open.

#16033 In apache/iceberg;

· laserninja opened on Apr 18, 2026

Parquet: ParquetFilters.convert() does not handle AlwaysFalse, may produce incorrect filter pushdown

improvementPR that improves existing functionalityPR that improves existing functionality

Status: Open.

#16032 In apache/iceberg;

· laserninja opened on Apr 18, 2026

Core: optionalOAuthParams (audience, resource) dropped during non-exchange token refresh

bugSomething isn't workingSomething isn't working

Status: Open.

#16022 In apache/iceberg;

· bharos opened on Apr 17, 2026

Propagate iceberg.hadoop.conf. prefixed properties to HadoopFileIO's Configuration

improvementPR that improves existing functionalityPR that improves existing functionality

Status: Open.

#16017 In apache/iceberg;

· lrsb opened on Apr 17, 2026

iceberg-kafka-connect zombie coordinator thread when writing to S3 fails

bugSomething isn't workingSomething isn't working

Status: Open.

#16016 In apache/iceberg;

· philhofftw opened on Apr 17, 2026

Parallelize writer flush in DynamicWriter.prepareCommit

improvementPR that improves existing functionalityPR that improves existing functionality

Status: Open.

#16014 In apache/iceberg;

· lrsb opened on Apr 17, 2026