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MariaDB / server Public

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MDEV-38970: Streaming window functions step 1#5267

Draft

OmarGamal10 wants to merge 9 commits into

MariaDB:mainMariaDB/server:mainfrom

OmarGamal10:mdev-38970OmarGamal10/server:mdev-38970Copy head branch name to clipboard

Conversation Commits9 (9)Checks Files changed

Draft

MDEV-38970: Streaming window functions step 1#5267
OmarGamal10 wants to merge 9 commits into
MariaDB:mainfrom
OmarGamal10:mdev-38970

Commits

Commits on Jun 23, 2026

Set the base and initial structure for streaming window functions path
OmarGamal10
committed
Wire the streaming window functions path into the existing join loop
OmarGamal10
committed
Remove order_window_funcs_by_window_specs from preparation time, and
OmarGamal10
committed
Fallback to materialization if GROUP BY due to regressions
OmarGamal10
committed

Commits on Jun 25, 2026

Add COUNT() as a streamable window function
OmarGamal10
committed
Add UNBOUNDED PRECEDING as an explicit valid frame for streaming (relied
OmarGamal10
committed
Add initial testing file for streaming window functions
OmarGamal10
committed
Cache THD in Window_funcs_sort_streaming to avoid calling current_thd in
OmarGamal10
committed
Add missing check in Window_funcs_sort_streaming::setup
OmarGamal10
committed

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