The batch mode Adaptive Joins feature enables the choice of a Hash Join or Nested Loops Join method to be deferred until after the first input has been scanned, by using a single cached plan. The Adaptive Join operator defines a threshold that is used to decide when to switch to a Nested Loops plan. Your plan can therefore dynamically switch to a better join strategy during execution.. GeoPITS brings you the comprehensive details of Batch mode adaptive joins's support in different versions & editions of SQL Server.
| Version | Enterprise | Standard | Web | Express (Adv.) | Express |
|---|---|---|---|---|---|
| Version v2019 | Yes | ||||
| Version v2017 | Yes | ||||
| Version v2016 | |||||
| Version v2014 | |||||
| Version v2012 |
The batch mode Adaptive Joins feature enables the choice of a Hash Join or Nested Loops Join method to be deferred until after the first input has been scanned, by using a single cached plan. The Adaptive Join operator defines a threshold that is used to decide when to switch to a Nested Loops plan. Your plan can therefore dynamically switch to a better join strategy during execution.
You can find more details about this version here
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