Allows the contract function writer to set the HASH BY specification when developing table operators.
This routine can only run if called from the contract function. It is callable on a PE vproc.
The routine will produce an error if the stream number is invalid or the HASH BY metadata was already set.
public void setHashBy(int streamno, String colNames) throws SQLException
- The input stream number.
- A pointer to the HASH BY metadata.