Which data warehouse implementation do you have? What are you trying to do with it and Node-red?
Interesting that your wikipedia link mentions ETL, another unknown TLA that someone (@carl) asked about this morning.
Searching the forum for ETL finds this page https://discourse.nodered.org/t/reclaiming-memory-from-nodes/49554/9
There is some code there (especially if you click the pencil to see edits to posts). It might be relevant.
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