PART III

Fixes regression caused by the original patch on SPARC machines.
The actual patch gave wrong results when the condition for the char(0)
field was pushed down to ndbd during select queries on SPARC machines.
Root Cause : bit fields are not supported in condition pushdown.
Since char(0) is treated as bit internally, the error occured.
This patch fixes that by disabling char(0) condition push down.
Changes:
  - ndb_serialize_cond now disallows pushing char(0) conditions
  - added test case