apache/iceberg

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Apache Iceberg

Stars: 9.2k
Forks: 3.5k
Open beginner issues: 0
Indexed issues: 450
Avg merge: 2d 16h
Merged PRs (30d): 129

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Open All

443 open issues indexed

Bump shadow-gradle-plugin to latest version (9.3.1) Open

improvement

apache/iceberg#15161 · 1 comment · 1 reaction · 1 assignee · Indexed Sep 14, 2026
AWS, REST: Remote signer client's cache causes 403 errors Open

bug stale

apache/iceberg#15166 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support configuring custom MetricPublisher for S3FileIO Open

improvement

apache/iceberg#15182 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Spark 4.1 incompatible: Create View Open

bug

apache/iceberg#15238 · 16 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Make Spark readers function asynchronously for many small files. Open

improvement

apache/iceberg#15287 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Metadata is not committed after Kafka cluster recreation (parquiet files are written successfully) Open

bug

apache/iceberg#15293 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
`CREATE OR REPLACE VIEW` preserves other dialects. Open

improvement

apache/iceberg#15296 · 8 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Alter schema: allow to drop map fields Open

improvement

apache/iceberg#15313 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Null partition handling of hive migration Open

bug

apache/iceberg#15332 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Disabling statistics across multiple columns Open

bug good first issue

apache/iceberg#15347 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
SPJ with Bucket Partition Key: Error: Wrong class, expected java.lang.CharSequence, but was java.lang.Integer Open

bug

apache/iceberg#15349 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Flink Iceberg should support Flink's IOs in addition to Iceberg's IO Open

improvement

apache/iceberg#15352 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Core: Improve HadoopFileIO performance when working with cloud storage Open

improvement

apache/iceberg#15353 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
RemoveDanglingDeleteFiles does not support branches and skips unpartitioned tables Open

improvement

apache/iceberg#15369 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Support merge-on-read tables in changelog scans Open

improvement

apache/iceberg#15394 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
GCSFileIO - how to connection pooling - exploding number of TCP connections Open

improvement stale

apache/iceberg#15411 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
GCSAuthManager does not seem to support credentials refresh - jobs crash mid Open

bug

apache/iceberg#15414 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Implement File Format API Technology Compatibility Kit Open

improvement

apache/iceberg#15415 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Implement the Java File Format API for Vortex Open

improvement

apache/iceberg#15416 · 5 comments · 7 reactions · 0 assignees · Indexed Sep 14, 2026
AWS: S3SignerServlet should strip out more request headers before signing Open

improvement

apache/iceberg#15417 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Kafka connect S3tables support Open

question

apache/iceberg#15425 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support Variant (and possibly other v3 types) in KafkaConnect Open

bug

apache/iceberg#15443 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Rewrite data files can create more small files after partition evolution Open

improvement

apache/iceberg#15465 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
ValidationException when filtering identity-partitioned timestamp field using other transforms Open

bug

apache/iceberg#15502 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Support row group skipping for shredded variant columns Open

improvement

apache/iceberg#15510 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Table and Column Label Metadata in Iceberg REST Catalog Open

OPENAPI proposal

apache/iceberg#15521 · 0 comments · 4 reactions · 0 assignees · Indexed Sep 14, 2026
AnalysisException: [UNRESOLVED_COLUMN] during MERGE INTO on wide Iceberg tables (400+ columns) in Spark 3.5 Open

bug

apache/iceberg#15526 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Update Benchmarks doc Open

docs good first issue improvement

apache/iceberg#15556 · 6 comments · 1 reaction · 1 assignee · Indexed Sep 14, 2026
Multi-topic → multi-table routing writes all records to all tables when schemas are identical Open

bug stale

apache/iceberg#15584 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add ability to configure connection timeout and read timeout while reading google cloud storage objects in Iceberg. Open

improvement

apache/iceberg#15587 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Spark: Add scd_type2 option to create_changelog_view procedure Open

stale

apache/iceberg#15593 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
SPJ Broken After Partition Evolution (Iceberg 1.10.0) Open

bug

apache/iceberg#15610 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Snapshot Retention Optimization via Spark Action API Deletes Metadata but Retains Data Files — Clarification Needed Open

question stale

apache/iceberg#15611 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
BaseFile.splitOffsets() allocates a new List on every call Open

improvement stale

apache/iceberg#15622 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Core, Spark: Add JMH benchmarks for Variants Open

improvement

apache/iceberg#15628 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Snapshot Changes should have a Streaming Interface Open

improvement stale

apache/iceberg#15659 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Snapshot Changes should Support Multiple Snapshots Open

improvement

apache/iceberg#15660 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
The estimated table size is inaccurate Open

question

apache/iceberg#15664 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
feature request: arrow to iceberg type mapping Open

improvement

apache/iceberg#15666 · 5 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
The estimated table size is inaccurate Open

bug

apache/iceberg#15684 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Backport #15508 Avro: Reading files using DataFileStream with ROW LINEAGE fails if the column isn't projected Open

apache/iceberg#15685 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Backport #15187 Avro: Row Lineage Column (ROW_ID) is not populated correctly in case the Data File doesn't have them Open

apache/iceberg#15686 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support Filter Pushdown for Spark Structured Streaming Reads Open

improvement

apache/iceberg#15692 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support version/timestamp range queries in Spark SQL syntax Open

improvement

apache/iceberg#15699 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Question - Is `write.target-file-size-bytes` including compression or not? Open

question

apache/iceberg#15754 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Connect] Currently fields of type INT64 with logical name Timestamp are created as iceberg type TimestampType.withZone(), which is not fully supported by Athena Open

improvement

apache/iceberg#15761 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Flink Sink V2: Add OutputFileFactoryProvider plugin interface Open

apache/iceberg#15763 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Flink Sink V2: Add PostCommitHook plugin interface Open

apache/iceberg#15768 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Flink Sink V2: Add CommitGate plugin interface for deferred commits Open

apache/iceberg#15770 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Flink quickstart MinIO image defaults break on arm64 Open

bug

apache/iceberg#15774 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

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