The identifier you supplied exceeds MySQL’s 64-character limit for table, column, index, alias, or constraint names.
MySQL Error 1059: ER_TOO_LONG_IDENT occurs when an object or alias name is over 64 characters. Shorten the identifier (or add a concise alias) so it is 64 characters or less to resolve the problem.
Identifier name '%s' is too long
MySQL raises Error 1059 when it encounters an identifier that exceeds the 64-character limit imposed on names for tables, columns, indexes, constraints, stored routines, or aliases. The engine rejects the statement and stops the transaction.
The error often appears during object creation but can surface in SELECT statements with overly long column aliases.
Resolving it is critical because failed DDL leaves schemas half-built and blocks dependent deployments.
The primary trigger is an identifier longer than 64 characters.
Long names often come from auto-generated code, verbose naming conventions, or concatenated strings produced by ORMs and migration tools.
MySQL versions 5.7, 8.0, and later all enforce the same 64-character limit, so upgrading will not remove the restriction.
Shorten the identifier so the final name is 64 characters or fewer. Use concise nouns, abbreviations, or camelCase.
For auto-generated names, adjust the code that produces them or supply explicit shorter names.
When renaming existing objects, wrap changes in a transaction and update every dependent reference, including foreign keys, views, procedures, and application code.
Create table statements with long constraint names fail. Supply an explicit key name: CONSTRAINT pk_user PRIMARY KEY (id).
ORM-generated indexes may exceed the limit.
Override default naming in the model definition or configuration file.
Adopt naming conventions that cap names at 40-50 characters to leave room for future alterations. Validate identifier length in CI pipelines using a simple script or Galaxy’s schema linter.
When using ORMs, configure custom name generators that respect MySQL limits. Log and review generated DDL before deployment.
ER_DUP_KEYNAME (1061) indicates duplicate index names, while ER_WRONG_NAME_FOR_INDEX (1280) flags invalid characters.
All are resolved by supplying a valid, unique identifier within the 64-character limit.
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Teams that embed full business context in names quickly exceed 64 characters, especially on composite indexes or constraints.
ORMs often concatenate table and column names to build index identifiers, easily breaching the limit.
Long SELECT expressions that include table prefixes plus suffixes can trip the limit for column aliases.
Scripts written for systems with higher limits (e.g., PostgreSQL 63 chars for columns but 63 bytes) might break in MySQL.
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It is 64 characters for tables, columns, indexes, constraints, views, stored routines, and aliases.
No. MySQL 8.0 retains the 64-character limit, so the error still occurs if you exceed it.
Run SHOW CREATE statements or parse migration files with a script that flags names over 64 characters. Galaxy’s linter surfaces them in the editor.
Yes. Galaxy highlights identifiers exceeding the limit in real-time and suggests shorter alternatives through its AI copilot.
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