Hello monks,

I'm processing public budget data with Rakudo v2023.04 (Raku v6.d) using the module Text::CSV 0.012.

The input file has 150000 lines (records) and I try to load just one column (field) with: 

my Str $data = slurp $file_name;
my $fh = IO::String.new($data);
my $csv = Text::CSV.new(';', '"');    
my @column = $csv.getline_all($fh).map( *[$target_col] );

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When executing I get: 

> raku clean_class.raku PPP_DSP_2002-2021.csv
Flattened array has 150000 elements, but argument lists are limited to
+ 65535
  in method print at C:\workbench\budget\lib\IO\String.pm6 (IO::String
+) line 40
  in method new at C:\workbench\budget\lib\IO\String.pm6 (IO::String) 
+line 26
  in method new at C:\workbench\budget\lib\IO\String.pm6 (IO::String) 
+line 13
  in sub MAIN at clean_class.raku line 77
  in block  at 'SETTING::'src/core.c/Main.pm6 line 421
  in sub RUN-MAIN at 'SETTING::'src/core.c/Main.pm6 line 416
  in block <unit> at clean_class.raku line 15

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As a workaround, I substituted line 40 of IO::String 

        @!content.push: |@x;

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with 

        @!content.push: $_ for @x;

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and the script runs without complaints.

I'm wondering if some other solution could be feasible?

Thanks and greetings.

In reply to [Raku] Limited argument list issue in IO::String (Text::CSV) by fishy

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