arrow-schema.md
In nanoparquet: Read and Write 'Parquet' Files

base64

Code
  base64_encode(1:10)
Condition
  Error in `base64_encode()`:
  ! Invalid input in base64 encoder

Code
  base64_decode(1:10)
Condition
  Error in `base64_decode()`:
  ! Invalid input in base64 decoder

Code
  base64_decode("foobar;;;")
Condition
  Error in `base64_decode()`:
  ! Base64 decoding error at position 6

temporal types

Code
  as.data.frame(np[["columns"]])
Output
    name type_type type nullable dictionary custom_metadata
  1    x      Date  DAY     TRUE               characte....
Code
  np[["columns"]][["type"]]
Output
  [[1]]
  [[1]]$date_unit
  [1] "DAY"

Code
  as.data.frame(np[["columns"]])
Output
    name type_type       type nullable dictionary custom_metadata
  1    x      Time SECOND, 32     TRUE               characte....
Code
  np[["columns"]][["type"]]
Output
  [[1]]
  [[1]]$time_unit
  [1] "SECOND"

  [[1]]$bit_width
  [1] 32

Code
  as.data.frame(np[["columns"]])
Output
    name type_type       type nullable dictionary custom_metadata
  1    x      Time SECOND, 32     TRUE               characte....
Code
  np[["columns"]][["type"]]
Output
  [[1]]
  [[1]]$time_unit
  [1] "SECOND"

  [[1]]$bit_width
  [1] 32

Code
  as.data.frame(np[["columns"]])
Output
    name type_type       type nullable dictionary custom_metadata
  1    x  Duration NANOSECOND     TRUE               characte....
Code
  np[["columns"]][["type"]]
Output
  [[1]]
  [[1]]$unit
  [1] "NANOSECOND"

Code
  as.data.frame(np[["columns"]])
Output
    name type_type         type nullable dictionary custom_metadata
  1    x Timestamp MICROSEC....     TRUE               characte....
Code
  np[["columns"]][["type"]]
Output
  [[1]]
  [[1]]$unit
  [1] "MICROSECOND"

  [[1]]$timezone
  [1] "UTC"

Code
  as.data.frame(np[["columns"]])
Output
    name type_type type nullable   dictionary custom_metadata
  1    x      Utf8          TRUE 0, list(....    characte....
Code
  np[["columns"]][["type"]]
Output
  [[1]]
  NULL