Why German Strings Are Everywhere
CedarDB introduced "German Strings" for efficient data processing, adopted by systems like DuckDB, Apache Arrow, Polars, and Facebook Velox. German Strings optimize function calls, offer performance benefits, and controlled lifetime for improved application use.
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Many programming languages have their own string implementations, but CedarDB introduced "German Strings" optimized for data processing. These strings are now used in systems like DuckDB, Apache Arrow, Polars, and Facebook Velox. German Strings are represented by a 128-bit struct, saving overhead and allowing for efficient function call passing. They have a short string representation for strings up to 12 characters and a long string representation for longer strings. These strings offer performance benefits, ease of parallelization, and controlled lifetime through storage classes. While they require careful consideration of string lifetimes and immutability, German Strings can enhance performance and ease of use in various applications beyond database systems.
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4 comments> Andy Pavlo may have coined it in his lessons. This string design comes from the Umbra/Hyper database system, which is designed by Thomas Neumann et al. (Germans)
-- https://www.reddit.com/r/Python/comments/1ajft37/polars_why_... https://pola.rs/posts/polars-string-type/
[0] https://dict.leo.org/german-english/Verdauungsspaziergang
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