select id from info where device_type = ? and drive_mfg = ?
and then prepare and execute it, something like: $sth=$dbh->prepare($stmt) || errexit("bad prepare for stmt $stmt, error: $DBI::errstr"); $rc=$sth->execute('TYPE1','ACME') || errexit("can't execute statement:\n$stmt\nreturn code $rc: DB error: $DBI::errstr");
If the prepare thinks that the placeholders are of mixed types (as supported by the driver), like:
select id from info where device_type = ? and drive_mfg = :2
Then, you will get the type of message you saw.
Probably your query is being built by the program where some odd character is occasionally creeping in where you don't expect it. I assume that the html entity references ('"') are not actually in the error message.
Cannot mix placeholder styles ":foo" and "$1" at / sw/lib/perl5/5.8.6/darwin-thread-multi-2level//DBD/Pg.pm line 174.
I keep finding it from time to time on one script I have and I have no clue what it's telling me.
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