3263
MariaDBERRORNotableWindow FunctionsHIGH confidence
Unresolved window name in window function
Production Risk
Low — query is rejected; add the WINDOW definition.
How to reproduce
trigger — this will error
trigger — this will error
SELECT ROW_NUMBER() OVER (w) FROM t1;
expected output
ERROR 3263 (HY000): No window found. An unnamed window cannot be used as a named window.
Fix
Add WINDOW clause
Add WINDOW clause
SELECT ROW_NUMBER() OVER (w) FROM t1 WINDOW w AS (ORDER BY id);
Why this works
The WINDOW clause defines the named window that the function references.
What not to do
✕
Sources
Official documentation ↗
MySQL 8.0 — 3263 ER_UNRESOLVED_WINDOW_NAME
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