If you are using string daratypes with the NdbScanFilter::COND_EQ then the following rules applies:
- VARCHAR and VARBINARY strings must have their length prepended (1 or 2 bytes)
- CHAR must be space padded
- BINARY must be null byte padded
- VARCHAR and VARBINARY must NOThave the lenght prepended!
- CHAR must NOT be space padded
- BINARY must NOT be null byte padded