EVL

Table of Contents


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Departition

(since EVL 1.2)

Gather or merge partitions into one output flow or file. When ‘-k <key>’ is specified, then sorted input of each partition is supposed and output will be again sorted (i.e. merged). With no ‘-k <key>’, it gather input partitions in round-robin fashion. Applying to only one partition simply write input to output. EVD is EVL data definition file, for details see evl-evd(5).

Synopsis

syntax/Depart
Depart
  <f_in>... <f_out> (<evd>|-d <inline_evd>)
  [--validate] [-x|--text-input] [-y|--text-output]

evl depart
  (<evd>|-d <inline_evd>)
  [-v|--validate] [-x|--text-input] [-y|--text-output]
  [-v|--verbose]

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

Options

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

either this option or the file <evd> must be presented. Example: -d ’id int, user_id string(6) enc=iso-8859-1’

--validate

without this option, no fields are checked against data types. With this option, all output fields are checked

-x, --text-input

suppose the input as text, not binary

-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

Examples

Read example.csv INPUT evd/example.csv –text-input Part INPUT PARTITIONED evd/example.evd Depart PARTITIONED /dev/stdout evd/example.evd –text-output partitioned and again departitioned csv input file