+1 (non-binding) -- LNC
On Fri, Apr 3, 2026, 5:15 PM Shixiong Zhu <[email protected]> wrote: > +1 > > > On Fri, Apr 3, 2026 at 5:03 PM Mich Talebzadeh <[email protected]> > wrote: > >> +1 >> >> Dr Mich Talebzadeh, >> Data Scientist | Distributed Systems (Spark) | Financial Forensics & >> Metadata Analytics | Transaction Reconstruction | Audit & Evidence-Based >> Analytics >> >> view my Linkedin profile >> <https://www.linkedin.com/in/mich-talebzadeh-ph-d-5205b2/> >> >> >> >> >> >> On Fri, 3 Apr 2026 at 23:00, Andreas Neumann <[email protected]> wrote: >> >>> Hi Spark devs, >>> >>> I'd like to call a vote on the SPIP*: Auto CDC Support for Apache Spark* >>> Motivation >>> >>> With the upcoming introduction of standardized CDC support >>> <https://issues.apache.org/jira/browse/SPARK-55668>, Spark will soon >>> have a unified way to produce change data feeds. However, consuming these >>> feeds and applying them to a target table remains a significant challenge. >>> >>> Common patterns like SCD Type 1 (maintaining a 1:1 replica) and SCD >>> Type 2 (tracking full change history) often require hand-crafted, >>> complex MERGE logic. In distributed systems, these implementations are >>> frequently error-prone when handling deletions or out-of-order data. >>> Proposal >>> >>> This SPIP proposes a new "Auto CDC" flow type for Spark. It >>> encapsulates the complex logic for SCD types and out-of-order data, >>> allowing data engineers to configure a declarative flow instead of writing >>> manual MERGE statements. This feature will be available in both Python >>> and SQL. >>> >>> Example SQL: >>> >>> -- Produce a change feed >>> >>> CREATE STREAMING TABLE cdc.users AS >>> >>> SELECT * FROM STREAM my_table CHANGES FROM VERSION 10; >>> >>> >>> -- Consume the change feed >>> >>> CREATE FLOW flow >>> >>> AS AUTO CDC INTO >>> >>> target >>> >>> FROM stream(cdc_data.users) >>> >>> KEYS (userId) >>> >>> APPLY AS DELETE WHEN operation = "DELETE" >>> >>> SEQUENCE BY sequenceNum >>> >>> COLUMNS * EXCEPT (operation, sequenceNum) >>> >>> STORED AS SCD TYPE 2 >>> >>> TRACK HISTORY ON * EXCEPT (city); >>> >>> >>> *Relevant Links:* >>> >>> - SPIP Document: >>> >>> https://docs.google.com/document/d/1Hp5BGEYJRHbk6J7XUph3bAPZKRQXKOuV1PEaqZMMRoQ/ >>> - >>> >>> *Discussion Thread: * >>> https://lists.apache.org/thread/j6sj9wo9odgdpgzlxtvhoy7szs0jplf7 >>> - >>> >>> JIRA: <https://issues.apache.org/jira/browse/SPARK-55668> >>> https://issues.apache.org/jira/browse/SPARK-56249 >>> >>> *The vote will be open for at least 72 hours. *Please vote: >>> >>> [ ] +1: Accept the proposal as an official SPIP >>> [ ] +0 >>> [ ] -1: I don't think this is a good idea because ... >>> Cheers -Andreas >>> >>> >>>
