Questions tagged [perl5.30]
4 questions
2
votes
2 answers
What is a performant way to split long lines when only a subset of fields is desired
The details of my query follow:
I have a very large TSV (Tab Sep. Value) file (where large > 30 GB).
I want to extract certain lines from this file that don't end with an empty last field. Since this is a TSV file, those lines that don't end with…
Michael Goldshteyn
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1
vote
1 answer
What is Perl's default hash implementation?
According to perldoc perlsec
Alternative Hash Functions The source code includes multiple hash algorithms to choose from. While we believe that the default perl hash is robust to attack, we have included the hash function Siphash as a fall-back…
Evan Carroll
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0 answers
Couldn't execute ESQL.EXE to determine the ESQL/C libraries
I am building perl 5.30 from source code. I successfully build perl.
Now i am trying to build DBD::Informix with my perl.
All the esql test compiled successfully but its failing when going for library.
perl Makefile.pl
The error which i am facing…
Qtdesigner
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1 answer
Unable to sort a multi-level hash (nested hash) in perl 5.30
As part of migration from perl 5.8 to perl 5.30, unable to get the perl nested hash in sorted fashion. Tried disabling the hash randomization features in 5.30 (set PERL_PERTURB_KEYS=0
set PERL_HASH_SEED=0x00), but still the sorting doesn't apply to…
