And you are the winner! open my $fh, "<encode(UTF8)", $csvFile fixed it so that the queries now work. The owners of the original data were using UTF8 to put apostrophes in their database or perhaps to write them in the CSV file. Writing them to my own database as ASCII was OK, but subsequently RSE's would only work if they are also constructed using UTF8. So provided Perl knows it's UTF8 from the outset, DBI constructs the queries correctly.

One world, one people

In reply to Re^2: Matching alphabetic diacritics with Perl and Postgresql by anonymized user 468275
in thread Matching alphabetic diacritics with Perl and Postgresql by anonymized user 468275

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