TypeScript reader for the QTSurfer Lastra columnar time series format. Decodes ALP, delta-varint, ZSTD/gzip columns. ~4 kB bundle, browser + Node.js.
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May 6, 2026 - TypeScript
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lastra-format
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QTSurfer Lastra: columnar time series format with per-column codecs, row groups, and CRC32 integrity. ALP/Gorilla/Pongo for doubles, delta-varint for timestamps, ZSTD/gzip for binary. Java 11+
compression time-series format zstd columnar-storage financial-data columnar alp lastra lastra-format
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May 6, 2026 - Java
CLI converter for the Lastra columnar time series file format. Parquet / CSV / Arrow
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Apr 29, 2026 - Python
Python reader and writer for the Lastra columnar time series file format. Per-column codec selection (ALP, Gorilla, Pongo, delta-varint, VARLEN). Bit-exact compatible with lastra-java.
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May 6, 2026 - Python
DuckDB extension for reading Lastra columnar time series files natively
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Apr 29, 2026 - C++
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