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IPC::Concurrency::DBI fails because successful DBI operations leave errstr defined

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Avaliação

Dificuldade
3/5
Tempo estimado
1-2 dias
Facilidade para iniciantes
55/100
Tipo de issue
Bug
Clareza
Razoavelmente clara
Status de atividade
Ativa
Stack de tecnologia
perl, sqlite
Domínio
databases

Direção de pesquisa

Start by reproducing the minimal SQLite INSERT and inspect the bundled DBI compatibility layer that updates errstr after successful operations. Then run t/20-register_application.t, the t/30-Application tests, and t/35-get_application.t; done means successful operations leave errstr undefined and these failures pass under both backends.

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Descrição

area:cpan-port area:database area:runtime bug

Summary

IPC::Concurrency::DBI v1.2.0 fails under PerlOnJava even though its upstream suite passes under system Perl.

Evidence

  • CPAN run: 20260928-091741-26386
  • Distribution: IPC-Concurrency-DBI v1.2.0
  • System Perl: 22 test files, 103/103 tests passed.
  • PerlOnJava: 12/22 test programs failed and 13/78 subtests failed.
  • The failures occur in t/20-register_application.t, the t/30-Application/... tests, and t/35-get_application.t.
  • Both JVM and interpreter backends reproduce the issue.

The first successful SQLite INSERT returns one affected row, but PerlOnJava reports defined($dbh->errstr) == 1 with an empty string. System Perl reports defined($dbh->errstr) == 0 after the same successful operation. IPC::Concurrency::DBI checks whether errstr is defined and therefore turns successful SQL operations into Cannot execute SQL: failures.

Minimal behavior:

my $rows = $dbh->do(
  'INSERT INTO t(name,n) VALUES (?,0)', {}, 'x'
);
# PerlOnJava: rows=1, errstr defined, errstr=""
# System Perl: rows=1, errstr undef

This points to the bundled DBI compatibility layer clearing errstr to an empty defined scalar instead of undef after success.

Related issues

Dependency note

PerlOnJava uses its bundled Perl/JDBC DBI + SQLite implementation, so this is an internal DBI compatibility issue rather than an unsupported native prerequisite. A targeted DBD::SQLite reverse-dependency lookup was attempted for classification but MetaCPAN was unavailable; no dependency count is inferred.

Linguagem predominante
Perl
Estrelas
64
Forks
7
Merge médio
5h 39min
PRs com merge (30d)
213

Preparar o ambiente

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