EVL – ETL Tool


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Table of Contents

Readparquet

(since EVL 2.0)

Write to stdout or <f_out> Parquet files from <parquet> directory.

Readparquet

is to be used in EVS job structure definition file. <f_out> is either output file or flow name.

evl readparquet

is intended for standalone usage, i.e. to be invoked from command line and writing records into standard output.

EVD and EVS are EVL definition files, for details see evl-evd(5) and evl-evs(5).

Synopsis

Readparquet
  <parquet> <f_out> (<evd>|-d <inline_evd>) [-y|--text-output]

evl readparquet
  <parquet> (<evd>|-d <inline_evd>) [-y|--text-output]
  [-v|--verbose]

evl readparquet
  ( --help | --usage | --version )

Options

-d, --data-definition=<inline_evd>

either this option or the file <evd> must be presented. Example: -d ’id int, name string, started timestamp’

-y, --text-output

write the output as text, not binary

Standard options:

--help

print this help and exit

--usage

print short usage information and exit

-v, --verbose

print to stderr info/debug messages of the component

--version

print version and exit