merge (Aggregate Function)

Collects multiple lists to merge as a single list.

Syntax

<OBJECT> list:merge(<OBJECT> list)
<OBJECT> list:merge(<OBJECT> list, <BOOL> is.distinct)

Query Parameters

Name	Description	Default Value	Possible Data Types	Optional	Dynamic
list	List to be merged		OBJECT	No	Yes
is.distinct	Whether to return list with distinct values	false	BOOL	Yes	Yes

Example 1

insert into OutputStream
select list:merge(list) as stockSymbols
from StockStream WINDOW TUMBLING_LENGTH(2);

For the window expiration of two events, the merge() function collects attributes of list and merges them to a single list, returned as stockSymbols.