Soumyava 524842a3bb

Window function on msq (#15470) ...

This PR aims to introduce Window functions on MSQ by doing the following:

    Introduce a Window querykit for handling window queries along with its factory and a processor for window queries
    If a window operator is present with a partition by clause, pushes the partition as a shuffle spec of the previous stage
    In presence of empty OVER() clause lets all operators loose on a single rac
    In presence of no empty OVER() clause, breaks down each window into individual stages
    Associated machinery to handle window functions in MSQ
    Introduced a separate hidden engine feature WINDOW_LEAF_OPERATOR which is set only for MSQ engine. In presence of this feature, the planner plans without the leaf operators by creating a window query over an inner scan query. In case of native this is set to false and the planner generates the leafOperators
    Guardrails around materialization
    Comprehensive UTs

2024-03-28 14:58:34 +05:30

..

src

Window function on msq (#15470)

2024-03-28 14:58:34 +05:30

pom.xml

Update Calcite*Test to use junit5 (#16106)

2024-03-19 04:05:12 -07:00