static void addMultiByteCharLeftPadded3_1(byte[] b) {
    int i = 0;
    b[i++] = (byte) 0x20; // blank " " (1 byte)
    b[i++] = (byte) 0x20; // blank " " (1 byte)
    b[i++] = (byte) 0x20; // blank " " (1 byte)
    b[i++] = (byte) 0xE4; // Asian character U+4824 (3 bytes)
    b[i++] = (byte) 0xA0;
    b[i++] = (byte) 0xA4;
  }
Test vectorized expression and filter evaluation for strings.
ql/src/test/org/apache/hadoop/hive/ql/exec/vector/expressions/TestVectorStringExpressions.java