delta-io/delta Issues | Good First Issue

Stars: (8,807 stars)
Forks: (2,100 forks)
Indexed issues: (35 indexed issues)
open beginner issues: (35 open beginner issues)
Latest indexed: Jul 5, 2026
Last GitHub push: May 15, 2026
License: Apache License 2.0
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Dominant language: Scala
PR merge metrics: (Avg merge 7d 1h) (142 merged PRs in 30d)
Beginner labels: good first issue

Issues

35 open indexed issues

RSS Atom

Open

fix: Java Kernel data skipping uses case-sensitive column matching

buggood first issue

delta-io/delta #6,247 opened Mar 11, 2026 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

[Feature Request][Kernel] Make kernel benchmark configurable using command line arguments

delta-kernelenhancementgood first issue

delta-io/delta #5,420 opened Oct 30, 2025 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

2 comments0 reactions1 assignee

Open

[Feature Request]Fix potential float -> double casting issue and align in expression with comparator "=" implementation

enhancementgood first issuekernel

delta-io/delta #5,227 opened Sep 17, 2025 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

6 comments0 reactions1 assignee

Open

[Kernel][Testing] Run more write test suites using the V2 builders

enhancementgood first issuekernel

delta-io/delta #5,092 opened Aug 16, 2025 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

[Feature Request] Skip creating FilteredColumnarBatch in ActiveAddFilesIterator if there is no active AddFiles in the batch

enhancementgood first issue

delta-io/delta #4,941 opened Jul 17, 2025 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

[Kernel] Fix Pagination Log Segment Validation for Staged Commit File Renames

buggood first issue

delta-io/delta #4,927 opened Jul 14, 2025 · Scala · 8,807 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

[Kernel] Remove unecessary N.json loading for InCommitTimestamp value

good first issuekernel

delta-io/delta #4,914 opened Jul 10, 2025 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

[Feature Request][Spark] Update UniForm related comment to include description to Hudi

enhancementgood first issue

delta-io/delta #3,252 opened Jun 11, 2024 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

[Feature Request][Spark] Add test coverage for clustering on generated columns

enhancementgood first issue

delta-io/delta #3,248 opened Jun 10, 2024 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions1 assignee

Open

[Feature Request][SPARK] Make Vacuum DRY RUN list all the files along with the the size of the files

enhancementgood first issue

delta-io/delta #3,247 opened Jun 10, 2024 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions1 assignee

Open

[Kernel] Add unittests for reading cloned (shallow/deep) Delta tables in Kernel

enhancementgood first issuekernel

delta-io/delta #2,705 opened Feb 29, 2024 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions1 assignee

Open

[Kernel][Data skipping] Add the STARTS_WITH expression and support data skipping for it

enhancementgood first issuekernel

delta-io/delta #2,539 opened Jan 18, 2024 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions1 assignee

Open

[Kernel][Defaults] Support `COALESCE` for all data types in the `DefaultExpressionHandler`

enhancementgood first issuekernel

delta-io/delta #2,416 opened Dec 28, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[Kernel][Testing] Add more thorough testing for DataType.toJson

enhancementgood first issuekernel

delta-io/delta #2,313 opened Nov 20, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

5 comments0 reactions0 assignees

Open

[Kernel] Improve log segment code and error messages

enhancementgood first issuekernel

delta-io/delta #2,283 opened Nov 10, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

5 comments0 reactions0 assignees

Open

[Kernel][Feature Request] Enable mima binary compatibility checks for Kernel

enhancementgood first issuekernel

delta-io/delta #2,216 opened Oct 20, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

[Kernel] Validate readSchema is a subset of the table schema in ScanBuilder

enhancementgood first issuekernel

delta-io/delta #2,149 opened Oct 6, 2023 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

5 comments0 reactions1 assignee

Open

[Feature Request][Kernel] Support implicit cast for `DefaultExpressionEvaluator` output.

enhancementgood first issuekernel

delta-io/delta #2,047 opened Sep 12, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[Feature Request][Kernel] Add more implicit cast conversions.

enhancementgood first issuekernel

delta-io/delta #2,044 opened Sep 12, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

[Kernel] [TODO] Assert that log files belong to the table

enhancementgood first issuekernel

delta-io/delta #1,968 opened Aug 9, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Stars: (8,807 stars)
Forks: (2,100 forks)
Indexed issues: (35 indexed issues)
open beginner issues: (35 open beginner issues)
Latest indexed: Jul 5, 2026
Last GitHub push: May 15, 2026
License: Apache License 2.0
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Dominant language: Scala
PR merge metrics: (Avg merge 7d 1h) (142 merged PRs in 30d)
Beginner labels: good first issue

Issues

35 open indexed issues

RSS Atom

Open

fix: Java Kernel data skipping uses case-sensitive column matching

buggood first issue

delta-io/delta #6,247 opened Mar 11, 2026 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

[Feature Request][Kernel] Make kernel benchmark configurable using command line arguments

delta-kernelenhancementgood first issue

delta-io/delta #5,420 opened Oct 30, 2025 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

2 comments0 reactions1 assignee

Open

[Feature Request]Fix potential float -> double casting issue and align in expression with comparator "=" implementation

enhancementgood first issuekernel

delta-io/delta #5,227 opened Sep 17, 2025 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

6 comments0 reactions1 assignee

Open

[Kernel][Testing] Run more write test suites using the V2 builders

enhancementgood first issuekernel

delta-io/delta #5,092 opened Aug 16, 2025 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

[Feature Request] Skip creating FilteredColumnarBatch in ActiveAddFilesIterator if there is no active AddFiles in the batch

enhancementgood first issue

delta-io/delta #4,941 opened Jul 17, 2025 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

[Kernel] Fix Pagination Log Segment Validation for Staged Commit File Renames

buggood first issue

delta-io/delta #4,927 opened Jul 14, 2025 · Scala · 8,807 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

[Kernel] Remove unecessary N.json loading for InCommitTimestamp value

good first issuekernel

delta-io/delta #4,914 opened Jul 10, 2025 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

[Feature Request][Spark] Update UniForm related comment to include description to Hudi

enhancementgood first issue

delta-io/delta #3,252 opened Jun 11, 2024 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

[Feature Request][Spark] Add test coverage for clustering on generated columns

enhancementgood first issue

delta-io/delta #3,248 opened Jun 10, 2024 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions1 assignee

Open

[Feature Request][SPARK] Make Vacuum DRY RUN list all the files along with the the size of the files

enhancementgood first issue

delta-io/delta #3,247 opened Jun 10, 2024 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions1 assignee

Open

[Kernel] Add unittests for reading cloned (shallow/deep) Delta tables in Kernel

enhancementgood first issuekernel

delta-io/delta #2,705 opened Feb 29, 2024 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions1 assignee

Open

[Kernel][Data skipping] Add the STARTS_WITH expression and support data skipping for it

enhancementgood first issuekernel

delta-io/delta #2,539 opened Jan 18, 2024 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions1 assignee

Open

[Kernel][Defaults] Support `COALESCE` for all data types in the `DefaultExpressionHandler`

enhancementgood first issuekernel

delta-io/delta #2,416 opened Dec 28, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[Kernel][Testing] Add more thorough testing for DataType.toJson

enhancementgood first issuekernel

delta-io/delta #2,313 opened Nov 20, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

5 comments0 reactions0 assignees

Open

[Kernel] Improve log segment code and error messages

enhancementgood first issuekernel

delta-io/delta #2,283 opened Nov 10, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

5 comments0 reactions0 assignees

Open

[Kernel][Feature Request] Enable mima binary compatibility checks for Kernel

enhancementgood first issuekernel

delta-io/delta #2,216 opened Oct 20, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

[Kernel] Validate readSchema is a subset of the table schema in ScanBuilder

enhancementgood first issuekernel

delta-io/delta #2,149 opened Oct 6, 2023 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

5 comments0 reactions1 assignee

Open

[Feature Request][Kernel] Support implicit cast for `DefaultExpressionEvaluator` output.

enhancementgood first issuekernel

delta-io/delta #2,047 opened Sep 12, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[Feature Request][Kernel] Add more implicit cast conversions.

enhancementgood first issuekernel

delta-io/delta #2,044 opened Sep 12, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

[Kernel] [TODO] Assert that log files belong to the table

enhancementgood first issuekernel

delta-io/delta #1,968 opened Aug 9, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Stars: (8,807 stars)
Forks: (2,100 forks)
Indexed issues: (35 indexed issues)
open beginner issues: (35 open beginner issues)
Latest indexed: Jul 5, 2026
Last GitHub push: May 15, 2026
License: Apache License 2.0
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Dominant language: Scala
PR merge metrics: (Avg merge 7d 1h) (142 merged PRs in 30d)
Beginner labels: good first issue

Issues

35 open indexed issues

RSS Atom

Open

fix: Java Kernel data skipping uses case-sensitive column matching

buggood first issue

delta-io/delta #6,247 opened Mar 11, 2026 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

[Feature Request][Kernel] Make kernel benchmark configurable using command line arguments

delta-kernelenhancementgood first issue

delta-io/delta #5,420 opened Oct 30, 2025 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

2 comments0 reactions1 assignee

Open

[Feature Request]Fix potential float -> double casting issue and align in expression with comparator "=" implementation

enhancementgood first issuekernel

delta-io/delta #5,227 opened Sep 17, 2025 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

6 comments0 reactions1 assignee

Open

[Kernel][Testing] Run more write test suites using the V2 builders

enhancementgood first issuekernel

delta-io/delta #5,092 opened Aug 16, 2025 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

[Feature Request] Skip creating FilteredColumnarBatch in ActiveAddFilesIterator if there is no active AddFiles in the batch

enhancementgood first issue

delta-io/delta #4,941 opened Jul 17, 2025 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

[Kernel] Fix Pagination Log Segment Validation for Staged Commit File Renames

buggood first issue

delta-io/delta #4,927 opened Jul 14, 2025 · Scala · 8,807 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

[Kernel] Remove unecessary N.json loading for InCommitTimestamp value

good first issuekernel

delta-io/delta #4,914 opened Jul 10, 2025 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

[Feature Request][Spark] Update UniForm related comment to include description to Hudi

enhancementgood first issue

delta-io/delta #3,252 opened Jun 11, 2024 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

Open

[Feature Request][Spark] Add test coverage for clustering on generated columns

enhancementgood first issue

delta-io/delta #3,248 opened Jun 10, 2024 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions1 assignee

Open

[Feature Request][SPARK] Make Vacuum DRY RUN list all the files along with the the size of the files

enhancementgood first issue

delta-io/delta #3,247 opened Jun 10, 2024 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions1 assignee

Open

[Kernel] Add unittests for reading cloned (shallow/deep) Delta tables in Kernel

enhancementgood first issuekernel

delta-io/delta #2,705 opened Feb 29, 2024 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

4 comments0 reactions1 assignee

Open

[Kernel][Data skipping] Add the STARTS_WITH expression and support data skipping for it

enhancementgood first issuekernel

delta-io/delta #2,539 opened Jan 18, 2024 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

8 comments0 reactions1 assignee

Open

[Kernel][Defaults] Support `COALESCE` for all data types in the `DefaultExpressionHandler`

enhancementgood first issuekernel

delta-io/delta #2,416 opened Dec 28, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[Kernel][Testing] Add more thorough testing for DataType.toJson

enhancementgood first issuekernel

delta-io/delta #2,313 opened Nov 20, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

5 comments0 reactions0 assignees

Open

[Kernel] Improve log segment code and error messages

enhancementgood first issuekernel

delta-io/delta #2,283 opened Nov 10, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

5 comments0 reactions0 assignees

Open

[Kernel][Feature Request] Enable mima binary compatibility checks for Kernel

enhancementgood first issuekernel

delta-io/delta #2,216 opened Oct 20, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

[Kernel] Validate readSchema is a subset of the table schema in ScanBuilder

enhancementgood first issuekernel

delta-io/delta #2,149 opened Oct 6, 2023 · Scala · 8,807 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

5 comments0 reactions1 assignee

Open

[Feature Request][Kernel] Support implicit cast for `DefaultExpressionEvaluator` output.

enhancementgood first issuekernel

delta-io/delta #2,047 opened Sep 12, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[Feature Request][Kernel] Add more implicit cast conversions.

enhancementgood first issuekernel

delta-io/delta #2,044 opened Sep 12, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

[Kernel] [TODO] Assert that log files belong to the table

enhancementgood first issuekernel

delta-io/delta #1,968 opened Aug 9, 2023 · Scala · 8,807 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

3 comments0 reactions0 assignees

delta-io/delta

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delta-io/delta

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delta-io/delta

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