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Deprecated version

This document refers to a deprecated version of the RQL programming language.

Please go here for documentation related to the latest supported version.

Reads many PARQUET files - directories or wildcards - from a file system location.

cache := <default interval>,
retries := <default int>, retry_interval := <default interval>)

Each file in a directory or wildcard match must be of compatible type. If each file contains a collection, then all files are UNIONed into a single large collection. Otherwise, all files are concatenated into a single large collection.

This command filters hidden and CRC files according to Hadoop conventions.