Allow scanning null even if PG and Go types are incompatible

refs https://github.com/jackc/pgx/issues/1326
2022-10-08 09:10:43 -05:00
parent 5655f9d593
commit af0b896290
2 changed files with 32 additions and 0 deletions
@@ -329,6 +329,21 @@ func TestMapScanPointerToRenamedType(t *testing.T) {
 	assert.Equal(t, "foo", string(*rs))
 }

+// https://github.com/jackc/pgx/issues/1326
+func TestMapScanNullToWrongType(t *testing.T) {
+	m := pgtype.NewMap()
+
+	var n *int32
+	err := m.Scan(pgtype.TextOID, pgx.TextFormatCode, nil, &n)
+	assert.NoError(t, err)
+	assert.Nil(t, n)
+
+	var pn pgtype.Int4
+	err = m.Scan(pgtype.TextOID, pgx.TextFormatCode, nil, &pn)
+	assert.NoError(t, err)
+	assert.False(t, pn.Valid)
+}
+
 func BenchmarkMapScanInt4IntoBinaryDecoder(b *testing.B) {
 	m := pgtype.NewMap()
 	src := []byte{0, 0, 0, 42}