DATASOURCEDISTRIBUTIONKEYCOLUMNS 
The system table SYSINFO.DATASOURCEDISTRIBUTIONKEYCOLUMNS describes the distribution keys in the data source.
This information is only relevant for SAP MaxDB bridge functionality.
Structure
DATASOURCENAME |
CHAR(32) |
Name of the data source |
SCHEMANAME |
CHAR(32) |
Name of the schema |
TABLENAME |
CHAR(32) |
Name of the table |
DISTRIBUTIONKEYNAME |
CHAR(32) |
Name of the distribution key in the data source |
UNIQUE |
CHAR(3) |
YES for an unique distribution key, otherwise NO |
COLUMNNAME |
CHAR(32) |
Name of the column |
COLUMNNUMBER |
FIXED(4) |
Column number in distribution key |