diff --git a/dumper/dataWriter.go b/dumper/dataWriter.go
index 2af531c..86a6cc9 100644
--- a/dumper/dataWriter.go
+++ b/dumper/dataWriter.go
@@ -7,6 +7,7 @@ package dumper
 import (
 	"bufio"
 	"database/sql"
+	"encoding/hex"
 	"encoding/json"
 	"fmt"
 	"strings"
@@ -380,6 +381,8 @@ func formatField(col sqlUtil.RowDataStructure) string {
 		val = pq.QuoteLiteral(string(pq.FormatTimestamp(col.Value.(time.Time))))
 	case "SQL":
 		val = fmt.Sprintf(`(%s)`, col.Value)
+	case "BYTEA":
+		return fmt.Sprintf(`decode('%s', 'hex')`, hex.EncodeToString(col.Value.([]byte)))
 	default:
 		val = pq.QuoteLiteral(fmt.Sprintf("%s", col.Value))
 	}
diff --git a/dumper/dataWriter_test.go b/dumper/dataWriter_test.go
new file mode 100644
index 0000000..b2dfb47
--- /dev/null
+++ b/dumper/dataWriter_test.go
@@ -0,0 +1,73 @@
+// SPDX-FileCopyrightText: 2024 SUSE LLC
+//
+// SPDX-License-Identifier: Apache-2.0
+
+package dumper
+
+import (
+	"testing"
+	"time"
+
+	"github.com/uyuni-project/inter-server-sync/sqlUtil"
+)
+
+func TestFormatField(t *testing.T) {
+	tests := []struct {
+		col         sqlUtil.RowDataStructure
+		expectedVal string
+	}{
+		// Test case for NULL value
+		{
+			col:         sqlUtil.RowDataStructure{},
+			expectedVal: "null",
+		},
+		// Test case for NUMERIC column type
+		{
+			col:         sqlUtil.RowDataStructure{ColumnType: "NUMERIC", Value: "10"},
+			expectedVal: "10",
+		},
+		{
+			col:         sqlUtil.RowDataStructure{ColumnType: "NUMERIC", Value: "-10"},
+			expectedVal: "-10",
+		},
+		// Test case for TIMESTAMPTZ and TIMESTAMP column types
+		{
+			col:         sqlUtil.RowDataStructure{ColumnType: "TIMESTAMPTZ", Value: time.Date(1984, time.July, 9, 17, 20, 0, 0, time.UTC)},
+			expectedVal: "'1984-07-09 17:20:00Z'",
+		},
+		{
+			col:         sqlUtil.RowDataStructure{ColumnType: "TIMESTAMPTZ", Value: time.Date(2019, time.May, 29, 13, 49, 0, 0, time.FixedZone("UTC-1", -3600))},
+			expectedVal: "'2019-05-29 13:49:00-01:00'",
+		},
+		{
+			col:         sqlUtil.RowDataStructure{ColumnType: "TIMESTAMPTZ", Value: time.Date(2021, time.June, 25, 0, 56, 0, 0, time.FixedZone("UTC+1", 3600))},
+			expectedVal: "'2021-06-25 00:56:00+01:00'",
+		},
+		// Test case for SQL column type
+		{
+			col:         sqlUtil.RowDataStructure{ColumnType: "SQL", Value: "SELECT * FROM table"},
+			expectedVal: "(SELECT * FROM table)",
+		},
+		// Test case for BYTEA column type
+		{
+			col:         sqlUtil.RowDataStructure{ColumnType: "BYTEA", Value: []byte("hello")},
+			expectedVal: "decode('68656c6c6f', 'hex')",
+		},
+		{
+			col:         sqlUtil.RowDataStructure{ColumnType: "BYTEA", Value: []byte("\"\\[\\e[0;32m\\]\\u@\\h:\\w\\$ \\[\\e[m\\]\ntest\"")},
+			expectedVal: "decode('225c5b5c655b303b33326d5c5d5c75405c683a5c775c24205c5b5c655b6d5c5d0a7465737422', 'hex')",
+		},
+		// Test case for default column type
+		{
+			col:         sqlUtil.RowDataStructure{ColumnType: "DEFAULT", Value: "default"},
+			expectedVal: "'default'",
+		},
+	}
+
+	for _, test := range tests {
+		result := formatField(test.col)
+		if result != test.expectedVal {
+			t.Errorf("formatField(%+v) = %s; expected %s", test.col, result, test.expectedVal)
+		}
+	}
+}
diff --git a/inter-server-sync.changes.rjmestre.dumper_encode_bytea_fields b/inter-server-sync.changes.rjmestre.dumper_encode_bytea_fields
new file mode 100644
index 0000000..8f9d6c6
--- /dev/null
+++ b/inter-server-sync.changes.rjmestre.dumper_encode_bytea_fields
@@ -0,0 +1 @@
+- Encode bytea fields (bsc#219965)
\ No newline at end of file