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  1. MariaDB Server
  2. MDEV-12987

complete window function support for columnstore parity

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    • columnstore window function parity

    Description

      Previously ColumnStore 1.0 had a custom fork of the mariadb server code to support window functions. Migrating CS to 10.2 has identified that there is a gap in functionality provided by CS not in 10.2. This epic covers the individual feature requests to close this gap. All of these are ANSI specified or de-facto specified by other databases so not a one off.

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          includes

          Task - A task that needs to be done. MDEV-4835 Add Median Function

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. MDEV-9525 Window functions: Support for aggregate_func(DISTINCT ...) OVER (...)

          • Critical - Crashes, loss of data, severe memory leak.
          • Open

          Task - A task that needs to be done. MDEV-9727 Window functions: datetime arithmetic for RANGE-type frames

          • Major - Major loss of function.
          • Open

          Task - A task that needs to be done. MDEV-12981 lead and lag don't support defaults

          • Major - Major loss of function.
          • Open

          Task - A task that needs to be done. MDEV-12983 support from last / first first with nth_value window function

          • Major - Major loss of function.
          • Open

          Task - A task that needs to be done. MDEV-12984 support IGNORE/RESPECT NULLS for window functions

          • Major - Major loss of function.
          • Open

          Task - A task that needs to be done. MDEV-12985 support percentile and median window functions

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. MDEV-12986 support nulls first / last for window function clauses

          • Major - Major loss of function.
          • Open

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              ralf.gebhardt Ralf Gebhardt
              dthompson David Thompson (Inactive)
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              Dates

                Created:
                Updated:

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