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docs: update node API reference (#734)
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docs/src/javascript/interfaces/CompactionOptions.md
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[vectordb](../README.md) / [Exports](../modules.md) / CompactionOptions
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# Interface: CompactionOptions
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## Table of contents
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### Properties
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- [materializeDeletions](CompactionOptions.md#materializedeletions)
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- [materializeDeletionsThreshold](CompactionOptions.md#materializedeletionsthreshold)
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- [maxRowsPerGroup](CompactionOptions.md#maxrowspergroup)
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- [numThreads](CompactionOptions.md#numthreads)
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- [targetRowsPerFragment](CompactionOptions.md#targetrowsperfragment)
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## Properties
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### materializeDeletions
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• `Optional` **materializeDeletions**: `boolean`
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If true, fragments that have rows that are deleted may be compacted to
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remove the deleted rows. This can improve the performance of queries.
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Default is true.
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#### Defined in
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[index.ts:660](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L660)
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___
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### materializeDeletionsThreshold
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• `Optional` **materializeDeletionsThreshold**: `number`
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A number between 0 and 1, representing the proportion of rows that must be
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marked deleted before a fragment is a candidate for compaction to remove
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the deleted rows. Default is 10%.
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#### Defined in
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[index.ts:666](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L666)
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___
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### maxRowsPerGroup
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• `Optional` **maxRowsPerGroup**: `number`
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The maximum number of rows per group. Defaults to 1024.
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#### Defined in
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[index.ts:654](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L654)
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___
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### numThreads
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• `Optional` **numThreads**: `number`
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The number of threads to use for compaction. If not provided, defaults to
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the number of cores on the machine.
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#### Defined in
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[index.ts:671](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L671)
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___
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### targetRowsPerFragment
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• `Optional` **targetRowsPerFragment**: `number`
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The number of rows per fragment to target. Fragments that have fewer rows
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will be compacted into adjacent fragments to produce larger fragments.
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Defaults to 1024 * 1024.
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#### Defined in
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[index.ts:650](https://github.com/lancedb/lancedb/blob/7856a94/node/src/index.ts#L650)
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