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Arrow feather deserialization of dataframe with column group

Status: Open.

#1044 In Kotlin/dataframe;

· ian-k opened on Jan 31, 2025

Publish core without AccessOverloadApi annotated functions by default and additional core-compact artifact

infrastructureGitHub actions, Gradle Scripts, Writerside, etc.GitHub actions, Gradle Scripts, Writerside, etc.

Status: Open.

#1156 In Kotlin/dataframe;

· koperagen opened on Apr 28, 2025

Improve AddDsl

enhancementNew feature or requestNew feature or request

Status: Open.

#1260 In Kotlin/dataframe;

· AndreiKingsley opened on Jun 19, 2025

Add a migration guide from Pandas

documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)

Status: Open.

#1299 In Kotlin/dataframe;

· zaleslaw opened on Jul 2, 2025

Update chapter "Kotlin for Data Analysis" on the Kotlin site

documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)

Status: Open.

#1344 In Kotlin/dataframe;

· zaleslaw opened on Jul 24, 2025

Add KDoc for Implode

KDocsImprovements or additions to KDocsImprovements or additions to KDocs

Status: Open.

#1385 In Kotlin/dataframe;

· zaleslaw opened on Aug 15, 2025

Update our documentation for working on Android use-case

documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)

Status: Open.

#1419 In Kotlin/dataframe;

· zaleslaw opened on Aug 29, 2025

Add a User Guide for the Parquet file reading

documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)

Status: Open.

#1452 In Kotlin/dataframe;

· zaleslaw opened on Sep 18, 2025

Add KDocs for function Split

KDocsImprovements or additions to KDocsImprovements or additions to KDocs

Status: Open.

#1471 In Kotlin/dataframe;

· zaleslaw opened on Oct 2, 2025

String API workflow with compiler plugin

Compiler pluginAnything related to the DataFrame Compiler PluginAnything related to the DataFrame Compiler Plugin

documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)

Status: Open.

#1678 In Kotlin/dataframe;

· koperagen opened on Feb 9, 2026

Refactor String Columns Accessors API

APIIf it touches our APIIf it touches our API

AXAll tickets that contribute to better KDF code generation (Agentic Experience)All tickets that contribute to better KDF code generation (Agentic Experience)

Status: Open.

#1684 In Kotlin/dataframe;

· AndreiKingsley opened on Feb 17, 2026

Inline ColumnFilter typealias in public API

APIIf it touches our APIIf it touches our API

researchThis requires a deeper dive to gather a better understandingThis requires a deeper dive to gather a better understanding

Status: Open.

#1699 In Kotlin/dataframe;

· koperagen opened on Feb 18, 2026

Fix convert with KDoc or signature

APIIf it touches our APIIf it touches our API

KDocsImprovements or additions to KDocsImprovements or additions to KDocs

Status: Open.

#1707 In Kotlin/dataframe;

· AndreiKingsley opened on Feb 23, 2026

Add korro example for require

documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)

Status: Open.

#1718 In Kotlin/dataframe;

· koperagen opened on Mar 2, 2026

Add Info about artifacts to Migration Guide

documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)

Status: Open.

#1779 In Kotlin/dataframe;

· AndreiKingsley opened on Apr 1, 2026

Add info about Compiler Plugin to Migration Guide

Compiler pluginAnything related to the DataFrame Compiler PluginAnything related to the DataFrame Compiler Plugin

documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)

Status: Open.

#1781 In Kotlin/dataframe;

· AndreiKingsley opened on Apr 1, 2026

Add info about changes in work with JDBC to Migration Guide

databasesJDBC related issuesJDBC related issues

documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)

Status: Open.

#1782 In Kotlin/dataframe;

· AndreiKingsley opened on Apr 1, 2026

Fill the information about the Column Arithmetic

documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)

Status: Open.

#265 In Kotlin/dataframe;

· zaleslaw opened on Feb 15, 2023

writeArrowFeather not working with nested type ?

enhancementNew feature or requestNew feature or request

not reproducibleWe cannot reproduce this issue atm, needs extra attentionWe cannot reproduce this issue atm, needs extra attention

Status: Open.

#271 In Kotlin/dataframe;

· phodal opened on Feb 16, 2023

Create a few basic skeleton applications to help users during the onboarding process

documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)

enhancementNew feature or requestNew feature or request

examplesSomething related to the examplesSomething related to the examples

Status: Open.

#404 In Kotlin/dataframe;

· zaleslaw opened on Jun 14, 2023

Investigate XLS parsing failure in packaged Gradle JAR and define required Excel dependencies

bugSomething isn't workingSomething isn't working

Status: Open.

#422 In Kotlin/dataframe;

· langbiantianya opened on Jul 12, 2023

median() throws unclear NPE

enhancementNew feature or requestNew feature or request

Status: Open.

#448 In Kotlin/dataframe;

· Jolanrensen opened on Aug 30, 2023

Streamline Empty DF creation functions

enhancementNew feature or requestNew feature or request

Status: Open.

#463 In Kotlin/dataframe;

· Jolanrensen opened on Oct 6, 2023

Make examples for database runnable as a part of TC

databasesJDBC related issuesJDBC related issues

infrastructureGitHub actions, Gradle Scripts, Writerside, etc.GitHub actions, Gradle Scripts, Writerside, etc.

testsSomething related to the JUnit tests, integration tests or testing infrastructureSomething related to the JUnit tests, integration tests or testing infrastructure

Status: Open.

#563 In Kotlin/dataframe;

· zaleslaw opened on Jan 17, 2024

Add ParserOptions support to readExcel for consistent parsing configuration

APIIf it touches our APIIf it touches our API

csvCSV / delim related issuesCSV / delim related issues

enhancementNew feature or requestNew feature or request

filesreading/writing from/to filesreading/writing from/to files

Status: Open.

#1248 In Kotlin/dataframe;

· AndreiKingsley opened on Jun 11, 2025