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Data engineering

Trouble with Apache Flink column

3 posts from 3 people3d activeSteady, +1 this week

Posts per day

Posts per day3 posts, Sep 21 to Nov 3

The posts behind it

GitHub issuesdelta-io/delta · shba24Oct 29

[BUG][Kernel] A dropped field is rejected as "Cannot drop clustering column" when a clustering column under another parent has the same physical name

## Bug #### Which Delta project/connector is this regarding? - [ ] Spark - [ ] Standalone - [ ] Flink - [x] Kernel - [ ] Other (fill in here): ### Describe the problem When a schema update drops a field, Kernel decides whether it is a clustering column by checking the dropped...

GitHub issuesdelta-io/delta · maharanay22Oct 10

[BUG][Spark] Generated column using BETWEEN fails with DELTA_UNSUPPORTED_EXPRESSION_GENERATED_COLUMN

## Bug #### Which Delta project/connector is this regarding? - [x] Spark - [ ] Standalone - [ ] Flink - [ ] Kernel - [ ] Other (fill in here) ### Describe the problem A generated column whose expression uses BETWEEN can't be created. On Spark 4, `v BETWEEN 0 AND 10` resolves to...

GitHub issuesdelta-io/delta · sebbeggSep 21

[BUG][Flink] DeltaSink fails with boolean columns as partition column

## Bug #### Which Delta project/connector is this regarding? - [ ] Spark - [ ] Standalone - [X] Flink - [ ] Kernel - [ ] Other (fill in here) ### Describe the problem When writing to a table that contains boolean partition column, delta fails #### Steps to reproduce ####...

Companies and products named

3 posts
2 posts
2 posts
About this problem

Evidence

3 posts from 3 people in 1 place, about 1 a week over 39 days. Mostly on delta-io/delta. Tools named alongside: Delta Lake, GitHub, Kernel.

Frustration Frustration 0 of 3· Seen on GitHub issues

How it was grouped

Posts about Apache Flink with no known issue, sharing the word "column". First post Sep 21, 2026, latest Oct 29, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method

Other Apache Flink problems

Apache Flink users keep filing bugs

Top post: "Clarify that write.*.isolation-level properties do not apply to append/INSERT", one of 5 posts from 5 people on GitHub issues, Reddit, Stack Overflow.

Apache Flink upgrades break working setups

3 posts from 3 people on GitHub issues.

Apache Flink connectors and syncs are fragile

2 posts from 2 people on GitHub issues. Unverified.

Apache Flink tables suffer from small files and skew

2 posts from 2 people on GitHub issues. Unverified.

Trouble with Apache Flink columns

Top post: "`VACUUM ... USING INVENTORY` rejects tables with non-nullable columns and comments", one of 2 posts from 2 people on GitHub issues. Unverified.

Apache Flink schema changes break downstream pipelines

2 posts from 2 people on GitHub issues. Unverified.

Trouble with Apache Flink spark

One post on GitHub issues: "DeltaSqlParser does not override parsePlanWithParameters, so SQL parameter markers are dropped". Unverified.

History

First seen with 3 posts; the top post now: "A dropped field is rejected as Cannot drop clustering column when a clustering column under another parent".

Nov 3, 2026