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Calcite support is flagged as “experimental.” From experimentation, I could see that it understands the WINDOW syntax but I couldn’t get it to execute a query successfully. > On 3 May 2022, at 13:38, Surinder Mehra <redni...@gmail.com> wrote: > > Hi, > Please reply > > On Sat, 30 Apr 2022, 07:19 Surinder Mehra, <redni...@gmail.com > <mailto:redni...@gmail.com>> wrote: > Hi > In ignite documentation 2.12, we could see SQL window functions but removed > in 2.13. could you please confirm if they are not supported. Apache calcite > support window functions so we expected to see them in ignite.