MySQL Errors
MySQL Errors 1071 — ER_TOO_LONG_KEY
In MySQL Errors, code 1071 is ER_TOO_LONG_KEY. The official source describes it as “Specified key was too long”. Its concrete cause depends on the operation and surrounding message.
Code1071
SymbolER_TOO_LONG_KEY
Source confidencehigh
Official definition
Specified key was too long
In plain language
In MySQL Errors, code 1071 is ER_TOO_LONG_KEY. The official source describes it as “Specified key was too long”. Its concrete cause depends on the operation and surrounding message.
Context to inspect
- The surrounding operation, version and subsystem determine the actual cause.
- The same numeric value can mean something different in another namespace.
Safe first checks
- Confirm which product, protocol or subsystem produced the code.
- Read the full surrounding error message and inspect relevant logs.
- Compare the code with the linked authoritative documentation before changing configuration.
Important context
The surrounding operation, version and subsystem determine the actual cause.