qvd2parquet v1.0.0

Changed

• Declared stable: the CLI surface and the conversion defaults are now covered
  by the compatibility promise above, having been validated against the Java
  reference reader, against QlikView- and Qlik Sense-written files, and against
  an independent third-party reader.
• An untyped column whose display strings render its serial as a date or
  timestamp is now read as one in two cases it previously missed, so the value
  arrives typed instead of as a bare Qlik serial beside a __text sidecar.
  A symbol carrying no value no longer disqualifies the column: one
  empty-string placeholder among 2,991 dated duals was leaving the taxi files'
  trip_end_timestamp as float64 plus trip_end_timestamp__text, though
  that placeholder is written as null either way. And the inference window now
  reaches back to 1600 rather than 1900, because historical series are real
  data -- the Stockholm temperature record starts in 1756. Across the twelve
  QVDs used for validation this takes __text sidecars from four to none.
  Labels are unaffected: a month number beside "Jan" still keeps both columns,
  since "Jan" renders nothing about the serial 1.
• A mixed text/number column no longer fails when the numeric symbols are
  integers and every symbol carries its own display string. The file already
  states the text for every value, so utf8 reproduces all of them and nothing
  is invented. This is what the LEGO parts.qvd and inventory_parts.qvd hit:
  part_num holds 0901 beside the number 901, a code rather than a quantity,
  which reading as 901 would destroy. Of the twelve real QVDs used for
  validation, eleven now convert on the defaults where nine did; the twelfth is
  deliberately corrupt. Decimals beside text, and bare numbers carrying no text,
  still stop -- there a rendering would have to be chosen, and that is the
  caller's call.

Install

Download the archive for your platform below, unpack it, and put qvd2parquet
on your PATH. Verify the download against SHA256SUMS:

shasum -a 256 -c SHA256SUMS --ignore-missing

Binaries are pure Go and statically linked, so they need no runtime
dependencies: Linux (amd64, arm64), Windows (amd64, arm64) and macOS (amd64,
arm64).