I have UTF8 data stored in Postgres. I can query it with a Perl script and display it properly. When I use the Postgres client, it displays like the encoding is off. I'll see characters displayed like \u0087\u0081.

From inside the database:

=> \encoding
UTF8

In the shell (I manually set LANGUAGE as I read elsewhere that might be a fix.):

$locale
LANG=en_US.UTF-8
LANGUAGE=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=

This is in Ubuntu 16.04.

What setting have I missed?

Edited to add code populating psql:

#!/usr/bin/perl

use strict;
use warnings;
use DBI;

### Source DB setup
my $maria_database="srcdb";
my $maria_user = "";
my $maria_password = "";
my $maria_host= "localhost";

my $mariadbh = DBI->connect("dbi:mysql:database=$maria_database;host=$maria_host","$maria_user","$maria_password",{AutoCommit=>1,RaiseError=>1,PrintError=>0,mysql_enable_utf8=>1});

my $mysrcquery = "SELECT fields from sourcetable limit 2;";
my $src = $mariadbh->prepare($mysrcquery);

### Destination DB setup
my $postgresql_database="desdb";
my $postgresql_user="";
my $postgresql_password="";
my $postgresql_host="localhost";

my $dbh = DBI->connect("DBI:Pg:dbname=$postgresql_database; host=$postgresql_host", "$postgresql_user", "$postgresql_password", {AutoCommit => 0,pg_enable_utf8 => 1});

my $pginsertquery = "insert into desttable (fields) VALUES (?)";
my $pginsert = $dbh->prepare($pginsertquery);

$src->execute();
my ($col0);
$src->bind_columns(undef, \$col0 );

### Loop through results and insert in to psql
while($src->fetch())
{
  print $col0;
  $pginsert->execute($col0);
}

$dbh->commit;
$dbh-> disconnect or warn "Disconnection failed: DBI::errstr\n";
$mariadbh-> disconnect or warn "Disconnection failed: DBI::errstr\n";

Test sqldump:

--
-- PostgreSQL database dump
--

-- Dumped from database version 9.6.1
-- Dumped by pg_dump version 9.6.1

SET statement_timeout = 0;
SET lock_timeout = 0;
SET idle_in_transaction_session_timeout = 0;
SET client_encoding = 'UTF8';
SET standard_conforming_strings = on;
SET check_function_bodies = false;
SET client_min_messages = warning;
SET row_security = off;

SET search_path = public, pg_catalog;

SET default_tablespace = '';

SET default_with_oids = false;

--
-- Name: test; Type: TABLE; Schema: public; Owner: testuser
--

CREATE TABLE test (
    testdata text
);


ALTER TABLE test OWNER TO testuser;

--
-- Name: test id; Type: DEFAULT; Schema: public; Owner: testuser
--

ALTER TABLE ONLY test ALTER COLUMN id SET DEFAULT nextval('test_id_seq'::regclass);


--
-- Data for Name: test; Type: TABLE DATA; Schema: public; Owner: testuser
--

COPY test (testdata) FROM stdin;
пÑ<80>ивеÑ<82>Ñ<81>Ñ<82>вÑ<83>Ñ<8e>
\.


--
-- PostgreSQL database dump complete
--