3181
MariaDBERRORNotableWindow FunctionsHIGH confidence
RANGE frame requires ORDER BY
Production Risk
Low — caught at validation time.
Why it happens
- 1Specifying RANGE frame bounds without an ORDER BY clause in the window definition.
How to reproduce
trigger — this will error
trigger — this will error
SELECT SUM(val) OVER (RANGE BETWEEN 1 PRECEDING AND CURRENT ROW) FROM t1;
expected output
ERROR 3181 (HY000): RANGE frame with PRECEDING or FOLLOWING requires exactly one ORDER BY expression.
Fix 1
Add an ORDER BY clause to the window
Add an ORDER BY clause to the window
SELECT SUM(val) OVER (ORDER BY id RANGE BETWEEN 1 PRECEDING AND CURRENT ROW) FROM t1;
Why this works
RANGE semantics require an ordering expression to define the range.
Fix 2
Use ROWS instead if ordering is unavailable
Use ROWS instead if ordering is unavailable
SELECT SUM(val) OVER (ROWS BETWEEN 1 PRECEDING AND CURRENT ROW) FROM t1;
Why this works
ROWS frame does not require ORDER BY.
What not to do
✕
Sources
Official documentation ↗
MySQL 8.0 — 3181 ER_WINDOW_RANGE_BOUND_WITHOUT_ORDERBY
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