3071
MySQLWARNINGCriticalDeprecationHIGH confidence
Deprecated syntax with no replacement
Production Risk
Low — works now; will fail silently or break after a future upgrade.
What this means
A deprecated syntax or feature is being used that has no direct replacement. It will be removed in a future version.
Why it happens
- 1Using features deprecated without a substitute in MySQL 8.0.
How to reproduce
trigger — this will error
trigger — this will error
-- Varies by deprecated feature
expected output
Warning (Code 3071): '<feature>' is deprecated and will be removed in a future release. There is no replacement.
Fix
Audit and remove the deprecated feature from application code
Audit and remove the deprecated feature from application code
-- Review SHOW WARNINGS after executing queries to identify usage.
Why this works
Proactive removal prevents breakage on upgrade.
What not to do
✕
Sources
Official documentation ↗
MySQL 8.0 — 3071 ER_WARN_DEPRECATED_SYNTAX_NO_REPLACEMENT2
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