Use the a_v4_extfn_order_el structure to describe the element order in a column.
typedef struct a_v4_extfn_order_el {
a_sql_uint32 column_index; // Index of the column in the table (1-based)
a_sql_byte ascending; // Nonzero if the column is ordered "ascending".
} a_v4_extfn_order_el;
| Data Member | Data Type | Description |
|---|---|---|
| column_index | a_sql_uint32 | Index of the column in the table (1-based). |
| ascending | a_sql_byte | Nonzero, if the column order is "ascending." |
The a_v4_extfn_order_el structure describes a column and tells whether it should be in ascending or descending order. The a_v4_extfn_orderby_list structure holds an array of these structures. There is one a_v4_extfn_order_el structure for each column in the ORDERBY clause.