diff --git a/lib/RowChecksum.pm b/lib/RowChecksum.pm
index 3d6e814a..1833437a 100644
--- a/lib/RowChecksum.pm
+++ b/lib/RowChecksum.pm
@@ -224,6 +224,9 @@ sub get_checksum_columns {
          elsif ( $trim && $type =~ m/varchar/ ) {
             $result = "TRIM($result)";
          }
+         elsif ( $type =~ m/blob|text|binary/ ) {
+            $result = "CRC32($result)";
+         }
          $result;
       }
       grep {
diff --git a/sandbox/servers/5.6/my.sandbox.cnf b/sandbox/servers/5.6/my.sandbox.cnf
index f47ab48d..24bfa584 100644
--- a/sandbox/servers/5.6/my.sandbox.cnf
+++ b/sandbox/servers/5.6/my.sandbox.cnf
@@ -15,7 +15,7 @@ innodb_buffer_pool_size    = 16M
 innodb_data_home_dir       = /tmp/PORT/data
 innodb_log_group_home_dir  = /tmp/PORT/data
 innodb_data_file_path      = ibdata1:10M:autoextend
-innodb_log_file_size       = 5M
+innodb_log_file_size       = 64M
 log-bin                    = mysql-bin
 relay_log                  = mysql-relay-bin
 log_slave_updates
diff --git a/t/pt-table-checksum/issue_1592608.t b/t/pt-table-checksum/issue_1592608.t
new file mode 100644
index 00000000..788fac8e
--- /dev/null
+++ b/t/pt-table-checksum/issue_1592608.t
@@ -0,0 +1,64 @@
+#!/usr/bin/env perl
+
+BEGIN {
+   die "The PERCONA_TOOLKIT_BRANCH environment variable is not set.\n"
+      unless $ENV{PERCONA_TOOLKIT_BRANCH} && -d $ENV{PERCONA_TOOLKIT_BRANCH};
+   unshift @INC, "$ENV{PERCONA_TOOLKIT_BRANCH}/lib";
+};
+
+use strict;
+use warnings FATAL => 'all';
+use English qw(-no_match_vars);
+use Test::More;
+
+use PerconaTest;
+use Sandbox;
+use SqlModes;
+require "$trunk/bin/pt-table-checksum";
+
+my $dp  = new DSNParser(opts=>$dsn_opts);
+my $sb  = new Sandbox(basedir => '/tmp', DSNParser => $dp);
+my $dbh = $sb->get_dbh_for('master');
+
+if ( !$dbh ) {
+   plan skip_all => 'Cannot connect to sandbox master';
+}
+else {
+   plan tests => 2;
+}
+
+# The sandbox servers run with lock_wait_timeout=3 and it's not dynamic
+# so we need to specify --set-vars innodb_lock_wait_timeout=3 else the tool will die.
+# And --max-load "" prevents waiting for status variables.
+my $master_dsn = 'h=127.1,P=12345,u=msandbox,p=msandbox,D=bug_1592608';
+my @args       = ($master_dsn, qw(--set-vars innodb_lock_wait_timeout=3), '--max-load', ''); 
+my $output;
+
+# We test that checksum works with invalid dates, 
+# but for that we need to turn off MySQL's NO_ZERO_IN_DATE mode 
+my $modes = new SqlModes($dbh, global=>1);
+$modes->del('NO_ZERO_IN_DATE');
+$sb->load_file('master', 't/pt-table-checksum/samples/issue_1592608.sql');
+# #############################################################################
+# Issue 602: mk-table-checksum issue with invalid dates
+# #############################################################################
+
+#sub { pt_table_checksum::main(@args, qw(-t issue_1592608.t --tables t )) },
+$output = output(
+   sub { pt_table_checksum::main(@args, qw(-t t)) },
+   stderr => 1,
+);
+
+is(
+   PerconaTest::count_checksum_results($output, 'rows'),
+   1,
+   "Large BLOB/TEXT/BINARY Checksum"
+);
+
+$modes->restore_original_modes();
+# #############################################################################
+# Done.
+# #############################################################################
+$sb->wipe_clean($dbh);
+ok($sb->ok(), "Sandbox servers") or BAIL_OUT(__FILE__ . " broke the sandbox");
+exit;
diff --git a/t/pt-table-checksum/samples/issue_1592608.sql b/t/pt-table-checksum/samples/issue_1592608.sql
new file mode 100644
index 00000000..4e5445a8
--- /dev/null
+++ b/t/pt-table-checksum/samples/issue_1592608.sql
@@ -0,0 +1,11 @@
+CREATE SCHEMA IF NOT EXISTS bug_1592608;
+USE bug_1592608;
+DROP TABLE IF EXISTS t;
+CREATE TABLE t (
+  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, 
+  a  MEDIUMTEXT, 
+  b  MEDIUMBLOB
+)engine=innodb;
+
+INSERT INTO t (a, b) VALUES (REPEAT('a', 2097152*2), CAST(REPEAT('a', 2097152*2) AS BINARY));
+