SQLColAttributes (Text File Driver)
This topic provides Text File Driver-specific information. For general information about this function, see the appropriate topic under ODBC API Reference.
For LONGVARBINARY data, SQL_COLUMN_DISPLAY_SIZE is the maximum length of the column, not the maximum length of the column times 2.
An empty string ("") is returned in this column because owner name is not supported.
The path to a directory is returned.
LONGVARBINARY and LONGVARCHAR columns are reported as SQL_UNSEARCHABLE.
Fixed-length and variable-length binary and character data types are searchable, even though LONGVARBINARY and LONGVARCHAR are not.