Is There A Way To Allocate More Than 2Gb For Large Hash Joins Per Process?
Last updated on JANUARY 31, 2017
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 and later
Information in this document applies to any platform.
Despite increasing the OS limitations and setting large values for _pga_max_size and _smm_max_size, the query goes to disk after using ~2GB of memory in workareas for hash join operations in serial mode.
Is there any method available to allow to a single process acquire 10 GB or more of process memory for large hash join operations?
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