<p>MySQL throws error 1382 when a statement uses syntax that is reserved for internal server operations and therefore not permitted in client SQL.</p>
<p>MySQL Error 1382: ER_RESERVED_SYNTAX appears when a query includes a keyword or clause that MySQL keeps for internal use only. Replace or escape the reserved construct, or upgrade to a version that supports it, to clear the error.</p>
The '%s' syntax is reserved for purposes internal to the
MySQL error 1382 fires when the parser encounters a keyword or clause that the server reserves exclusively for internal tasks. Because these tokens are not part of the public SQL grammar, user statements that include them are rejected.
The full message reads: The '%s' syntax is reserved for purposes internal to the MySQL server. The placeholder is replaced by the token MySQL found.
The error commonly appears during table creation, column alteration, or stored program development when a developer unknowingly uses an internal clause such as DATA DIRECTORY, INDEX DIRECTORY with an unsupported engine, or a hidden partitioning option.
It can also surface after copying SQL from another database system whose keywords overlap with MySQL internal features.
Leaving the error unresolved blocks schema migrations, application deployments, and automation scripts. Rapid resolution keeps CI pipelines green and prevents production downtime.
Keywords like SUBPARTITION or STORAGE ENGINE options intended only for MySQL system use trigger the error when used in DDL.
Specifying DATA DIRECTORY or INDEX DIRECTORY with InnoDB prior to supported versions causes MySQL to treat the clause as reserved.
Porting SQL that contains Oracle or PostgreSQL exclusive keywords (e.g., TABLESPACE, PARTITION OF) leads to ER_RESERVED_SYNTAX.
New MySQL versions earmark certain words early. Employing them in older releases provokes the error.
Generic parse error shown when the token is invalid but not specifically reserved.
Occurs when a default violates data type rules, often caught during the same DDL run.
Shows up when trying to drop a non-existent key, sometimes after rewriting DDL to bypass ER_RESERVED_SYNTAX.
Raised when subsequent queries reference tables that failed to create due to ER_RESERVED_SYNTAX.
No, the error is purely syntactical and unrelated to user privileges.
No server switch allows that. Replace, escape, or upgrade instead.
Backticks help only when the token is used as an identifier, not when it is part of a clause.
Galaxy's AI copilot flags reserved keywords instantly and suggests compliant rewrites, reducing runtime failures.
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