@Override
    public float getFloat(final int columnIndex) throws SQLException {
        return (float) ResultSetUtils.convertValue(mergeResultSet.getValue(columnIndex, float.class), float.class);
    }
@Test
    void assertGetFloatWithColumnIndex() throws SQLException {
        when(mergeResultSet.getValue(1, float.class)).thenReturn(1.0F);
        assertThat(shardingSphereResultSet.getFloat(1), is(1.0F));
    }