lastra-format

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QTSurfer / lastra-java

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

Updated Apr 10, 2026
Java

QTSurfer / lastra-ts

Star

TypeScript reader for the QTSurfer Lastra columnar time series format. Decodes ALP, delta-varint, ZSTD/gzip columns. ~4 kB bundle, browser + Node.js.

compression time-series zstd financial-data columnar alp lastra lastra-format

Updated Apr 10, 2026
TypeScript

QTSurfer / duckdb-lastra

Star

DuckDB extension for reading Lastra columnar time series files natively

extension time-series time-series-analysis duckdb duckdb-wasm duckdb-extension lastra lastra-format

Updated Apr 12, 2026
C++

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