MySQL raises error 1031, ER_ILLEGAL_HA, when a CREATE or ALTER operation specifies an option that the selected storage engine cannot handle.
MySQL Error 1031: ER_ILLEGAL_HA appears when you set a table option that the chosen storage engine does not support. Switch to an engine that understands the option or remove the unsupported clause to resolve the issue.
Table storage engine for '%s' doesn't have this option
MySQL throws error 1031 with message "Table storage engine for '%s' doesn't have this option" when a table definition references an option that the current or target storage engine cannot use.
The server aborts the CREATE, ALTER, or partition statement to protect data integrity.
The error surfaces during CREATE TABLE, ALTER TABLE, or partition operations that include clauses like ROW_FORMAT, KEY_BLOCK_SIZE, COMPRESSION, ENCRYPTION, or secondary engine attributes that are unavailable for the chosen engine.
Engine-specific features vary. InnoDB ignores KEY_BLOCK_SIZE, while MyISAM rejects ENCRYPTION. Passing such options triggers error 1031.
The issue also arises when you migrate a table between engines without removing legacy options.
Identify the option, verify the engine’s capabilities, then either remove the unsupported clause or change the ENGINE parameter to one that supports it. Re-execute the DDL after adjustment to confirm the table is created or altered successfully.
Galaxy’s context-aware AI copilot surfaces engine compatibility warnings as you type.
The editor autocompletes only valid options for the active engine and flags unsupported clauses before you run the query, preventing ER_ILLEGAL_HA in development pipelines.
Standardize on a single engine per environment, lint DDL scripts for option-engine mismatches, and test migration scripts in staging. Monitor error logs and CI jobs for 1031 to catch regressions early.
Errors 1005, 1214, and 1465 also block DDL statements due to engine limitations or foreign-key constraints.
Their fixes follow similar patterns: inspect the message, adjust options, and rerun the statement.
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No. The error blocks the DDL statement before it changes anything, so existing data remains intact.
MySQL will not silently ignore invalid options. Remove the option or pick a compatible engine.
In MySQL 8.0, only InnoDB supports ROW_FORMAT=COMPRESSED with file-per-table enabled.
Galaxy’s editor checks option-engine compatibility in real time and suggests valid alternatives, reducing runtime failures.
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