Retrieves the LOCAL ORDER BY clause information of the input stream for a table operator.
Syntax
void FNC_TblOpGetLocalOrderByDef(int streamno, FNC_Names_Ord_t *out_colname);
Syntax Elements
- streamno
- an input stream number.
- out_colname
- a pointer to the location where the column names and their ordering will be stored.
For details about the FNC_Names_Ord_t structure, see Table Operator Data Structures.
Usage Notes
Before calling FNC_TblOpGetLocalOrderByDef, you must allocate memory for the out_colname buffer:
FNC_Names_Ord_t *out_colname = FNC_malloc( TblOpSIZEORDERBY( FNC_TblOpCountHashByDef(streamno)) );
You must release the allocated memory when out_colname is no longer needed. If FNC_malloc was used to allocate the memory, use FNC_free to release it.