MI_ROW_DESC* mi_tab_rowdesc(MI_AM_TABLE_DESC *tableDesc)

tableDesc

points to the table descriptor.

To access information in the row descriptor, pass the pointer in this column to the DataBlade API row-descriptor accessor functions. A row descriptor describes the columns that make up the table.

The order of the columns in the row descriptor corresponds to the order of the columns in the CREATE TABLE statement. Another accessor function, such as mi_scan_projs(), can obtain information about a specific column by passing the position of the column in the row descriptor.

The pointer enables the access method to locate the row descriptor, which describes the columns in this table.

Refer to the IBM Informix: DataBlade API Programmer's Guide for the descriptions of:

• DataBlade API row-descriptor accessor functions mi_column_bound(), mi_column_count(), mi_column_id(), mi_column_name(), mi_column_nullable(), mi_column_scale(), mi_column_type_id(), and mi_column_typedesc()
• The row descriptor (MI_ROW_DESC data structure)