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• 2026/03/26 Re: [ANNOUNCE] Announcing Apache Spark 4.2.0-preview3 Qiegang Long
• 2026/03/25 Re: [GSoC 2026][SPARK-55163] GSoC contributor seeking guidance on Spark Connect metadata caching vaquar khan
• 2026/03/23 Re: [VOTE][Result] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Holden Karau
• 2026/03/23 Re: [VOTE][Result] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs H Sun
• 2026/03/23 Re: [VOTE][Result] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Herman van Hovell via dev
• 2026/03/23 Re: [VOTE][Result] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Holden Karau
• 2026/03/23 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs H Sun
• 2026/03/19 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Yang Jie
• 2026/03/18 [FYI] Request for feedback: Updating AGENTS.md (CLAUDE.md) Dongjoon Hyun
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Kousuke Saruta
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Ángel Álvarez Pascua
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Rishab Joshi
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Jungtaek Lim
• 2026/03/18 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark Jungtaek Lim
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs vaquar khan
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Hyukjin Kwon
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Szehon Ho
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Yicong Huang
• 2026/03/18 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark Dongjoon Hyun
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs DB Tsai
• 2026/03/18 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark Lisa N. Cao
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Holden Karau
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs L. C. Hsieh
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Chao Sun
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Herman van Hovell via dev
• 2026/03/18 Re: [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Daniel Tenedorio
• 2026/03/18 [VOTE] SPIP: Unified UDF Execution Protocol and Worker Specification for Multi-Language UDFs Haiyang Sun via dev
• 2026/03/18 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark Jungtaek Lim
• 2026/03/18 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark vaquar khan
• 2026/03/18 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark vaquar khan
• 2026/03/18 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark vaquar khan
• 2026/03/18 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark vaquar khan
• 2026/03/18 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark vaquar khan
• 2026/03/17 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark Jungtaek Lim
• 2026/03/17 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark Holden Karau
• 2026/03/17 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark Tian Gao via dev
• 2026/03/17 Re: [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark Hyukjin Kwon
• 2026/03/17 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark Jungtaek Lim
• 2026/03/17 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark vaquar khan
• 2026/03/17 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark Tian Gao via dev
• 2026/03/17 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark vaquar khan
• 2026/03/17 Re: SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark Dongjoon Hyun
• 2026/03/17 Re: [DISCUSS] SPIP: Upgrade Apache Hive to 4.x Mich Talebzadeh
• 2026/03/17 SPIP: Automated Integrity Validation (AIV) Gate for Apache Spark vaquar khan
• 2026/03/17 [FYI] Replacing black with ruff for Python formatter Tian Gao via dev
• 2026/03/17 Spark + Hive 4 Integration Guide (Practical Approach) Mich Talebzadeh
• 2026/03/17 Re: [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark Holden Karau
• 2026/03/17 Re: [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark Haiyang Sun via dev
• 2026/03/16 [ANNOUNCE] Apache Spark Kubernetes Operator 0.8.0 Released Dongjoon Hyun
• 2026/03/16 [VOTE][RESULT] Release Apache Spark K8s Operator 0.8.0 (RC1) Dongjoon Hyun
• 2026/03/16 Re: [VOTE] Release Apache Spark K8s Operator 0.8.0 (RC1) Dongjoon Hyun
• 2026/03/13 Re: [Community] Seeking advice on PR follow-up process Sergei Repnikov
• 2026/03/13 Re: [VOTE] Release Apache Spark K8s Operator 0.8.0 (RC1) Yang Jie
• 2026/03/12 [ANNOUNCE] Announcing Apache Spark 4.2.0-preview3 Hyukjin Kwon
• 2026/03/12 [RESULT][VOTE] Release Spark 4.2.0-preview3 (RC1) Hyukjin Kwon
• 2026/03/11 Re: [VOTE] Release Spark 4.2.0-preview3 (RC1) Cheng Pan
• 2026/03/11 Re: [VOTE] Release Spark 4.2.0-preview3 (RC1) Hyukjin Kwon
• 2026/03/11 Re: [Community] Seeking advice on PR follow-up process Mich Talebzadeh
• 2026/03/11 Re: [VOTE] Release Spark 4.2.0-preview3 (RC1) Peter Toth
• 2026/03/11 Re: [VOTE] Release Spark 4.2.0-preview3 (RC1) Peter Toth
• 2026/03/11 Re: [VOTE] Release Apache Spark K8s Operator 0.8.0 (RC1) Peter Toth
• 2026/03/11 Re: Implementing SaveMode.Overwrite in my v2 DataSource Joeri van Ruth via dev
• 2026/03/11 Re: [VOTE] Release Spark 4.2.0-preview3 (RC1) Szehon Ho
• 2026/03/10 Re: [VOTE] Release Apache Spark K8s Operator 0.8.0 (RC1) Qi Tan
• 2026/03/10 Re: [VOTE] Release Spark 4.2.0-preview3 (RC1) vaquar khan
• 2026/03/10 Re: [VOTE] Release Apache Spark K8s Operator 0.8.0 (RC1) Kousuke Saruta
• 2026/03/10 Re: [VOTE] Release Apache Spark K8s Operator 0.8.0 (RC1) Wenchen Fan
• 2026/03/10 Re: [VOTE] Release Spark 4.2.0-preview3 (RC1) Wenchen Fan
• 2026/03/10 Re: [VOTE] Release Spark 4.2.0-preview3 (RC1) Kousuke Saruta
• 2026/03/10 Re: [VOTE] Release Apache Spark K8s Operator 0.8.0 (RC1) L. C. Hsieh
• 2026/03/10 Re: [VOTE] Release Apache Spark K8s Operator 0.8.0 (RC1) Dongjoon Hyun
• 2026/03/10 Re: [VOTE] Release Spark 4.2.0-preview3 (RC1) Hyukjin Kwon
• 2026/03/10 Re: [VOTE] Release Apache Spark K8s Operator 0.8.0 (RC1) huaxin gao
• 2026/03/10 Re: [VOTE] Release Apache Spark K8s Operator 0.8.0 (RC1) Zhou Jiang
• 2026/03/10 Re: [VOTE] Release Spark 4.2.0-preview3 (RC1) Holden Karau
• 2026/03/10 [VOTE] Release Apache Spark K8s Operator 0.8.0 (RC1) Dongjoon Hyun
• 2026/03/10 Re: [VOTE] Release Spark 4.2.0-preview3 (RC1) Dongjoon Hyun
• 2026/03/10 Re: Implementing SaveMode.Overwrite in my v2 DataSource Mich Talebzadeh
• 2026/03/10 Re: Implementing SaveMode.Overwrite in my v2 DataSource Joeri van Ruth via dev
• 2026/03/10 Re: Implementing SaveMode.Overwrite in my v2 DataSource Joeri van Ruth via dev
• 2026/03/09 [VOTE] Release Spark 4.2.0-preview3 (RC1) gurwls223
• 2026/03/09 Re: [DISCUSS] Drop support for pypy Ruifeng Zheng
• 2026/03/09 Re: [DISCUSS] Drop support for pypy Tian Gao via dev
• 2026/03/09 [FYI] SPARK-55719: Remove deprecation warning for spark.sql.hive.convertCTAS Dongjoon Hyun
• 2026/03/09 Re: [DISCUSS] Drop support for pypy Holden Karau
• 2026/03/09 Re: [DISCUSS] Drop support for pypy Dongjoon Hyun
• 2026/03/09 Re: Implementing SaveMode.Overwrite in my v2 DataSource Mich Talebzadeh
• 2026/03/09 Re: Implementing SaveMode.Overwrite in my v2 DataSource Khalid Mammadov
• 2026/03/09 Re: Implementing SaveMode.Overwrite in my v2 DataSource Joeri van Ruth via dev
• 2026/03/08 Re: [DISCUSS] Drop support for pypy Yang Jie
• 2026/03/08 Re: [DISCUSS] Drop support for pypy Reynold Xin via dev
• 2026/03/08 Re: [DISCUSS] Drop support for pypy Hyukjin Kwon
• 2026/03/08 Re: [DISCUSS] Drop support for pypy Ruifeng Zheng
• 2026/03/08 [DISCUSS] Drop support for pypy Tian Gao via dev
• 2026/03/07 Re: Unsubscribe Subhasis Mukherjee
• 2026/03/06 [VOTE][RESULT] SPIP: Change Data Capture (CDC) Support Gengliang Wang
• 2026/03/06 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Gengliang Wang
• 2026/03/06 Re: Implementing SaveMode.Overwrite in my v2 DataSource Mich Talebzadeh
• 2026/03/06 Implementing SaveMode.Overwrite in my v2 DataSource Joeri van Ruth via dev
• 2026/03/05 Re: [VOTE] SPIP: Change Data Capture (CDC) Support DB Tsai
• 2026/03/05 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Peter Toth
• 2026/03/04 Re: Unsubscribe Lisa N. Cao
• 2026/03/04 Unsubscribe Subhasis Mukherjee
• 2026/03/04 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Dongjoon Hyun
• 2026/03/04 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Qiegang Long
• 2026/03/04 Re: [VOTE] SPIP: Change Data Capture (CDC) Support huaxin gao
• 2026/03/04 Re: [VOTE] SPIP: Change Data Capture (CDC) Support vaquar khan
• 2026/03/04 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Gengliang Wang
• 2026/03/04 Re: [VOTE] SPIP: Change Data Capture (CDC) Support vaquar khan
• 2026/03/04 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Anton Okolnychyi
• 2026/03/04 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Gengliang Wang
• 2026/03/04 [ANNOUNCE] Apache Auron (Incubating) v7.0.0 available Ruilei Ma
• 2026/03/03 [RESULT][VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Holden Karau
• 2026/03/03 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Holden Karau
• 2026/03/03 Re: [VOTE] SPIP: Change Data Capture (CDC) Support vaquar khan
• 2026/03/03 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Gengliang Wang
• 2026/03/03 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Yuming Wang
• 2026/03/03 Re: [VOTE] SPIP: Change Data Capture (CDC) Support vaquar khan
• 2026/03/03 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Cheng Pan
• 2026/03/03 Re: [VOTE] SPIP: Change Data Capture (CDC) Support John Zhuge
• 2026/03/03 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Burak Yavuz
• 2026/03/03 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Szehon Ho
• 2026/03/03 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Anton Okolnychyi
• 2026/03/03 Re: [VOTE] SPIP: Change Data Capture (CDC) Support Mich Talebzadeh
• 2026/03/03 [VOTE] SPIP: Change Data Capture (CDC) Support Gengliang Wang
• 2026/03/02 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Jungtaek Lim
• 2026/03/02 Re: [DISCUSS] SPIP: Change Data Capture (CDC) Support Anton Okolnychyi
• 2026/03/02 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Szehon Ho
• 2026/03/02 Re: [DISCUSS] SPIP: Change Data Capture (CDC) Support Gengliang Wang
• 2026/03/02 Re: [DISCUSS] SPIP: Change Data Capture (CDC) Support Mich Talebzadeh
• 2026/03/02 Re: [DISCUSS] SPIP: Change Data Capture (CDC) Support Gengliang Wang
• 2026/03/02 Re: [DISCUSS] SPIP: Change Data Capture (CDC) Support Mich Talebzadeh
• 2026/03/02 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Cheng Pan
• 2026/03/02 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Kousuke Saruta
• 2026/03/02 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Mridul Muralidharan
• 2026/03/01 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Yang Jie
• 2026/03/01 [VOTE][RESULT] SPIP: DSV2 Enhanced Partition Stats Filtering Gengliang Wang
• 2026/03/01 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Gengliang Wang
• 2026/03/01 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes John Zhuge
• 2026/03/01 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes huaxin gao
• 2026/03/01 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Devin Petersohn via dev
• 2026/03/01 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Gengliang Wang
• 2026/03/01 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Wenchen Fan
• 2026/03/01 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Peter Toth
• 2026/02/28 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Hyukjin Kwon
• 2026/02/28 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes vaquar khan
• 2026/02/28 Re: [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Attila Zsolt Piros
• 2026/02/28 Re: [DISCUSS] SPIP: Extending Spark 3.5 LTS Period With Security Fixes Attila Zsolt Piros
• 2026/02/28 Re: Proposal for Change Data Capture with Spark Gengliang Wang via dev
• 2026/02/28 Re: Proposal for Change Data Capture with Spark Ángel Álvarez Pascua
• 2026/02/28 Re: Proposal for Change Data Capture with Spark Nimrod Ofek
• 2026/02/28 Re: [ANNOUNCE] Apache Spark 4.0.2 released Fengyu Cao
• 2026/02/28 Re: Proposal for Change Data Capture with Spark Ángel Álvarez Pascua
• 2026/02/28 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering roryqi
• 2026/02/28 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering YE
• 2026/02/28 Proposal for Change Data Capture with Spark Nimrod Ofek
• 2026/02/27 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Chao Sun
• 2026/02/27 Re: [DISCUSS] SPIP: Change Data Capture (CDC) Support Gengliang Wang
• 2026/02/27 Re: [VOTE] SPIP: Asynchronous Metadata Resolution & Lazy Prefetching (Phase 1) Holden Karau
• 2026/02/27 [VOTE][SPIP][SPARK-55489] Extending Spark 3.5 LTS Period with Security Fixes Holden Karau
• 2026/02/27 Re: [DISCUSS] SPIP: Change Data Capture (CDC) Support Holden Karau
• 2026/02/27 Re: [DISCUSS] SPIP: Change Data Capture (CDC) Support Gengliang Wang
• 2026/02/27 Re: [DISCUSS] SPIP: Change Data Capture (CDC) Support Szehon Ho
• 2026/02/27 [FYI] Applications for Travel Assistance to Community Over Code Glasgow now open Dongjoon Hyun
• 2026/02/26 Re: [ANNOUNCE] Apache Spark 4.0.2 released Dongjoon Hyun
• 2026/02/26 Re: [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark Holden Karau
• 2026/02/26 Re: [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark Haiyang Sun via dev
• 2026/02/26 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering DB Tsai
• 2026/02/26 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Dongjoon Hyun
• 2026/02/26 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Szehon Ho
• 2026/02/26 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Peter Toth
• 2026/02/26 Re: [DISCUSS] SPIP: Extending Spark 3.5 LTS Period With Security Fixes Holden Karau
• 2026/02/25 Re: [DISCUSS] SPIP: Extending Spark 3.5 LTS Period With Security Fixes Mridul Muralidharan
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Cheng Pan
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Kousuke Saruta
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Mridul Muralidharan
• 2026/02/25 Re: [VOTE] SPIP: Asynchronous Metadata Resolution & Lazy Prefetching (Phase 1) vaquar khan
• 2026/02/25 Re: [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark Holden Karau
• 2026/02/25 Re: [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark Wenchen Fan
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Wenchen Fan
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Kent Yao
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Liu Cao
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Tathagata Das
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering John Zhuge
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering karuppayya
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Qiegang Long
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering L. C. Hsieh
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Anton Okolnychyi
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Holden Karau
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering huaxin gao
• 2026/02/25 Re: [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Gengliang Wang
• 2026/02/25 [VOTE] SPIP: DSV2 Enhanced Partition Stats Filtering Gengliang Wang
• 2026/02/25 Re: [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark Holden Karau
• 2026/02/25 Re: [DISCUSS] SPIP: Extending Spark 3.5 LTS Period With Security Fixes Holden Karau
• 2026/02/25 Re: [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark Holden Karau
• 2026/02/25 Re: [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark DB Tsai
• 2026/02/25 Re: [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark Ángel Álvarez Pascua
• 2026/02/25 Re: [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark vaquar khan
• 2026/02/25 Re: [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark Daniel Tenedorio
• 2026/02/25 [VOTE] SPIP: Language-Agnostic UDF Execution Protocol for Spark Herman van Hovell via dev

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