EXTFNAPIV4_DESCRIBE_COL_NAME |
Column name (valid identifier). |
EXTFNAPIV4_DESCRIBE_COL_TYPE |
Column data type. |
EXTFNAPIV4_DESCRIBE_COL_WIDTH |
String width (precision for NUMERIC). |
EXTFNAPIV4_DESCRIBE_COL_SCALE |
Scale for NUMERIC. |
EXTFNAPIV4_DESCRIBE_COL_CAN_BE_NULL |
True, if a column can be NULL. |
EXTFNAPIV4_DESCRIBE_COL_DISTINCT_VALUES |
Estimated number of distinct values in the column. |
EXTFNAPIV4_DESCRIBE_COL_IS_UNIQUE |
True, if column is unique within the table. |
EXTFNAPIV4_DESCRIBE_COL_IS_CONSTANT |
True, if column is constant for statement lifetime. |
EXTFNAPIV4_DESCRIBE_COL_CONSTANT_VALUE |
The value of a parameter, if known at describe time. |
EXTFNAPIV4_DESCRIBE_COL_IS_USED_BY_CONSUMER |
True, if column is needed by the consumer of the table. |
EXTFNAPIV4_DESCRIBE_COL_MINIMUM_VALUE |
The minimum value for the column (if known). |
EXTFNAPIV4_DESCRIBE_COL_MAXIMUM_VALUE |
The maximum value for the column (if known). |
EXTFNAPIV4_DESCRIBE_COL_VALUES_SUBSET_OF_INPUT |
The result column values are a subset of columns from an input table. |
EXTFNAPIV4_DESCRIBE_COL_LAST |
First illegal value for v4 API. Out-of-band value. |