MDEV-10059: Compute window functions with same sorting criteria simultaneously

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Perform only one table scan for each window function present. We do this
by keeping keeping cursors for each window function frame bound and
running them for each function for every row.

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Vicențiu Ciorbaru

2016-09-01 18:10:15 +03:00

parent 19d24f011c

commit 23e8b508a0

4 changed files with 609 additions and 447 deletions

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sql/sql_window.cc

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