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Merge operation stuck on scanning files for matches

KacperG
New Contributor

Hi

I'm executing simple merge, however it always stucks at "MERGE operation - scanning files for matches". Both delta tables are not big - source has about 100MiB in 1 file and target has 1,5GiB, 7 files, so it should be quite fast operation, however it stuck infinitly on this:

KacperG_0-1729157109666.png

Both tables are external type and located on ADLS gen2. 
On the other hand using replace table using select * processes without problems.

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