arrow-cat

Documentation

Overview

Command arrow-cat displays the content of an Arrow stream or file.

Examples:

$> arrow-cat ./testdata/primitives.data
version: V4
record 1/3...
  col[0] "bools": [true (null) (null) false true]
  col[1] "int8s": [-1 (null) (null) -4 -5]
  col[2] "int16s": [-1 (null) (null) -4 -5]
  col[3] "int32s": [-1 (null) (null) -4 -5]
  col[4] "int64s": [-1 (null) (null) -4 -5]
  col[5] "uint8s": [1 (null) (null) 4 5]
  col[6] "uint16s": [1 (null) (null) 4 5]
  col[7] "uint32s": [1 (null) (null) 4 5]
  col[8] "uint64s": [1 (null) (null) 4 5]
  col[9] "float32s": [1 (null) (null) 4 5]
  col[10] "float64s": [1 (null) (null) 4 5]
record 2/3...
  col[0] "bools": [true (null) (null) false true]
[...]

$> gen-arrow-stream | arrow-cat
record 1...
  col[0] "bools": [true (null) (null) false true]
  col[1] "int8s": [-1 (null) (null) -4 -5]
  col[2] "int16s": [-1 (null) (null) -4 -5]
  col[3] "int32s": [-1 (null) (null) -4 -5]
  col[4] "int64s": [-1 (null) (null) -4 -5]
  col[5] "uint8s": [1 (null) (null) 4 5]
  col[6] "uint16s": [1 (null) (null) 4 5]
  col[7] "uint32s": [1 (null) (null) 4 5]
  col[8] "uint64s": [1 (null) (null) 4 5]
  col[9] "float32s": [1 (null) (null) 4 5]
  col[10] "float64s": [1 (null) (null) 4 5]
record 2...
  col[0] "bools": [true (null) (null) false true]
[...]