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Explain Dynamic Partition Pruning error and how to fix it.

SQLmedium0.5 min readPremium
Frequency
Low
Asked at 1 company
Category
487
questions in SQL
Difficulty Split
130E|271M|86H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
Globant
Key Concepts Tested
joinpartitionsparksql
Expert AnswerPremium
97 wordsInterview-ready
**Architectural Logic**: DPP in Spark pushes dimension filters to fact table to skip partitions—type mismatch or missing broadcast breaks it. **Mechanism**: When dimension is filtered and broadcast, Spark pushes partition filter to fact. **Error Causes**: Partition column type mismatch (e.g., INT vs STRING); filter not pushed; broadcast hint missing. **Fix**: (1) Align join key types with partition column. (2) `broadcast(dim_df)` for small dimension....
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