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- Performance Guide 11692
- DuckDB aims to automatically achieve high performance by using well-chosen default configurations and having a forgiving architecture. Of course, there are still opportunities for tuning the system for specific workloads. The Performance Gu
... - https://man.mtool.work/duckdb/2.0/guides/performance/overview.html
- Tuning Workloads 10994
- DuckDB aims to perform well out of the box, so most workloads do not require any tuning. When tuning is worthwhile, there is no single configuration or magic number that is optimal for every workload: the right settings depend on what you a
...ny times with different parameters Prepared statements Prepared statements Reading files over a slow or unreliable network Tuning asynchronous I/O and minimizing IO Querying remote files Running many small queries Reusing a single connection Best pract... - https://man.mtool.work/duckdb/2.0/guides/performance/how_to_tune_workloads.html
- Order Preservation 8548
- For many operations, DuckDB preserves the order of rows, similarly to data frame libraries such as Pandas. Example Take the following table for example: CREATE TABLE tbl AS SELECT * FROM (VALUES (1, 'a'), (2, 'b'), (3, 'c')) t(x, y); SELECT
...ory usage when importing or exporting datasets larger than memory. See the preserve_insertion_order option in the workload tuning guide for details.... - https://man.mtool.work/duckdb/2.0/sql/dialect/order_preservation.html
- I/O 7501
- Warning DuckDB ships with safe defaults. The configuration options described on this page are advanced options, so proceed with caution when changing them. Asynchronous I/O New Asynchronous I/O was introduced in DuckDB 2.0. Starting with v2
.... Once memory frees up, the queue fills up again. To limit the total memory used by DuckDB, use the memory_limit setting . Tuning The default settings work well in most cases. On machines with high network bandwidth, you can further increase throughput... - https://man.mtool.work/duckdb/2.0/data/io.html
- R-Tree Indexes 7151
- The spatial extension provides support for spatial indexing through the R-tree extension index type. Why Should I Use an R-Tree Index? When working with geospatial datasets, it is very common that you want to filter rows based on their spat
...lk-loading) is tracked by DuckDB, and will count towards the memory limit set by the memory_limit configuration parameter. Tuning Depending on you specific workload, you might want to experiment with the max_node_capacity and min_node_capacity options... - https://man.mtool.work/duckdb/2.0/core_extensions/spatial/r-tree_indexes.html
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