Here's a shorter version of what I was trying to do:
my $sql = "INSERT INTO table_name"
. " (a, b, c)"
. " VALUE (?, ?, ?)"
. " ON DUPLICATE KEY"
. " UPDATE field_three = ?";
my $sth = $dbh->prepare( $sql );
for my $entry ( keys %entries ) {
$sth->execute( $entries{'a'}, $entries{'b'}, $entries{'b'} );
my $id = $dbh->last_insert_id( undef, undef, undef, undef );
# use $id to insert stuff in another table
}
Where the id is an auto-increment column, and also the primary key.
The problem is that last_insert_id() not always gives me the right id. (concurrency? transaction issues?)
I actually tried doing a SELECT on the table right after that INSERT, but since I'm doing this inside a transaction, the SELECT clause returns nothing...
Any ideas on how to go around this? Am I missing something trivial?
Both DBI's and MySQL's documentation point to a few CAVEATS around last_insert_id()...
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