[FAQ Bot] NEW: PyFlink session window job fails with 'please declare primary key for si#249
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[FAQ Bot] NEW: PyFlink session window job fails with 'please declare primary key for si#249github-actions[bot] wants to merge 1 commit intomainfrom
github-actions[bot] wants to merge 1 commit intomainfrom
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✨ FAQ NEW
Course: data-engineering-zoomcamp
Section: general (Topic relates to PyFlink session window behavior and JDBC sink PK requirements; it’s general enough to belong in the overall FAQ rather than a module-specific section.)
Related Issue: #248
Question
PyFlink session window job fails with 'please declare primary key for sink table when query contains update/delete record' error
Decision Rationale
The proposal describes a PyFlink session window error not covered by existing FAQs and provides a concrete fix (adding a primary key on the sink using window boundaries and grouping key).
Placement Details
generalpyflink-sess-window-pk-fix🤖 Generated by FAQ Bot
Closes #248