q/qsql for your datalake — CQ
CQ - a new q/qsql runtime for your cloud data lake
Freedom to keep using q/qsql without having to ETL/ELT data into a proprietary database. No more gateways for handling concurrent queries — point CQ at an S3 bucket or an Apache Iceberg metadata catalog and get to work!
Features:
Read/Write Apache Iceberg tables with snapshots and time-travel support
Read/Write Parquet and gzipped CSVs on S3
Load multiple databases in one instance, each in its own namespace
Hive-style multi-column partitioning and predicate pushdown filtering
Compatible with the KDB IPC wire protocol
SIMD (AVX2) + multi-threaded support. Performance equal to or better than KDB
Compression support: gzip, lz4, zstd, and snappy
Thousands of grammar and feature tests
And much, much more...
Download
Free non-commercial trial version, exits after 4 hours. By downloading or using this software you agree to the License Agreement.
Latest version: 0.24.0
Linux x64 (sha256)
macOS (Apple Silicon) (sha256)
macOS (Intel) (sha256)
Install from the command line
Linux x64<br>macOS
Copy<br>curl -L https://cqdb.io/dist/cq-linux-x86_64.tar.gz | tar xz<br>./cq/cq<br>curl -L https://cqdb.io/dist/cq-macos-$(uname -m).tar.gz | tar xz<br>./cq/cq
Parameters
$ cq -h<br>cq — a terse array & query language
usage:<br>cq start the interactive REPL<br>cq [file] load a script (.q or .cq), then enter the REPL<br>cq [file] -p N listen on TCP port N for IPC clients<br>cq [file] -epoch 0|1 temporal epoch: 0 = 2000.01.01, 1 = Unix (default)<br>cq [file] -w N cap workspace memory at N MB ('wsfull when exceeded)<br>cq [file] -s N use N secondary threads for peach<br>cq [file] ARGS extra args are exposed to the script as .z.x
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