Known Issues in Apache Calcite

Learn about the known issues in Calcite, the impact or changes to the functionality, and the workaround.

CALCITE-3774: Add option to RelBuilder to prevent it from merging projects
Add option to RelBuilder to prevent it from merging projects. Currently, if you call RelBuilder.project and the input is a Project it will merge the expressions. However, sometimes it creates complex expressions and Calcite can run out of memory.
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