我正在尝试使用DBD :: Pg将UTF8字符串插入到PostgreSQL中,并始终在数据库中获得双重编码的UTF8。如果我插入的字符串是Latin1。
,我只会在数据库中获得正确的字符如何告诉DBD :: Pg不重新编码已经是UTF8的字符串?
测试脚本:
window.location = window.location.href+'&filename=file.file';
经过几次测试后得到的表格:
!/usr/bin/perl
use strict;
my $PGDB = 'dbi:Pg:dbname=test;host=localhost';
my $PGDB_USER = 'username';
my $SQL_INSERT = 'INSERT INTO tmp1 (t1, t2) VALUES (?, ?)';
use DBI;
my $dbh = DBI->connect($PGDB, $PGDB_USER)
|| die "Couldn't connect to $PGDB as user $PGDB_USER: $DBI::errstr\n";
#$dbh->do("SET client_encoding TO UTF8");
my $sth = $dbh->prepare( $SQL_INSERT )
|| die "Can't prepare insert statement $SQL_INSERT: $DBI::errstr";
my $cp1252 = "\xe9 voil\xe0";
my $utf8 = "é voilà";
utf8::upgrade($utf8);
use utf8;
#use bytes;
my $text = 'sent utf8 w. utf8::upgrade';
$sth->execute($utf8, $text) or die $sth->errstr, "\n";
(这是在Ubuntu 16.04上使用DBD :: Pg版本3.5.3。我在Ubuntu 12.04上安装的DBD :: Pg版本没有这个问题)