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siddharth-chevella
commented
Mar 23, 2026
siddharth-chevella
commented
- Update sidebar
- Added optimisation docs
arsalan-datazip
requested changes
Mar 24, 2026
arsalan-datazip
requested changes
Mar 26, 2026
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| 1. **Lite** – Performs a lightweight optimization by converting **equality delete files** into **positional delete files**. Some query engines do not support reading equality delete files, so this conversion ensures better compatibility across query engines without rewriting the underlying data files. | ||
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| 2. **Medium** – Performs partial compaction by merging smaller **data files** and **delete files** into medium-sized files closer to the configured **target file size**. This helps reduce file fragmentation, lowers metadata overhead, and improves query performance while avoiding a full rewrite of the table. |
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Also mention that files larger than 16 MB are compacted to align more closely with the configured target file size.
arsalan-datazip
requested changes
Mar 26, 2026
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