SAP HANA Forum
Why is more memory required during the delta merge operation?
Thanks in advance.
A delta merge needs about twice the size of the table to perform the merge.
Additionally a temporary working space is needed which is about the size of the largest column of the table.
In case you have a table of 100 GB with 40 GB being the size of largest column, you would need 100 GB * 2 + 40 GB = 240 GB while the merge is executed.
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