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