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Name

DB.DBA.BAG_OF_NONNULLS_OR_NULL_AGG — Returns a vector of passed values ingoring NULL arguments.

Synopsis

vector DB.DBA.BAG_OF_NONNULLS_OR_NULL_AGG ( value_expression any );
 

Description

DB.DBA.BAG_OF_NONNULLS_OR_NULL_AGG returns a vector of passed values. Similar to DB.DBA.BAG_OF_NONNULLS_AGG() but returns NULL instead of an empty vector if no arguments were passed or only NULLs were passed.

The order of items in the vector is not predefined and may vary from run to run.

Parameters

value_expression

Value of item for aggregation.

Return Types

Any. If no arguments were passed teturns NULL instead of an empty vector or only NULLs were passed.

Examples

Example 24.9. Simple Use 

SELECT DB.DBA.BAG_OF_NONNULLS_OR_NULL_AGG (subquery.X)
FROM (SELECT X FROM ... ORDER BY X) as subquery

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