MySQL raises ER_BEFORE_DML_VALIDATION_ERROR when a table fails validation checks enforced by a storage engine or plugin before a DML statement executes.
ER_BEFORE_DML_VALIDATION_ERROR (3098) means MySQL blocked INSERT, UPDATE, or DELETE because the target table breaks rules required by a storage engine or plugin. Align the table definition with the plugin’s requirements or disable the plugin to fix the issue.
ER_BEFORE_DML_VALIDATION_ERROR
MySQL returns ER_BEFORE_DML_VALIDATION_ERROR when it checks a table immediately before running an INSERT, UPDATE, or DELETE and detects that the table violates rules declared by an enabled plugin or storage engine. The server cancels the statement to protect data integrity.
The error was introduced in MySQL 5.7.6 and most often appears with storage engines such as InnoDB, NDB Cluster, or third-party plugins that enforce extra constraints on metadata, foreign keys, or partitioning.
An enabled plugin performs a metadata validation step before DML. If it finds missing indexes, mismatched column definitions, or unsupported partitioning, it triggers error 3098 and stops the transaction.
The problem surfaces after schema changes, plugin upgrades, or migrating tables between engines where metadata requirements differ.
Identify the plugin named in the error log. Use SHOW PLUGINS to confirm its status and consult its documentation for required table options.
Compare the failing table definition against those requirements with SHOW CREATE TABLE. Add missing columns, indexes, or options, or recreate the table with the correct ENGINE clause.
InnoDB transportable tablespaces can trigger the error if the ROW_FORMAT or KEY_BLOCK_SIZE differs from the originating server. ALTER TABLE ... ROW_FORMAT=COMPRESSED corrects it.
NDB Cluster may raise 3098 when the table lacks a primary key. Adding a PRIMARY KEY resolves the validation failure.
Standardize table options across environments, run schema checks after upgrades, and automate validation with CI scripts. Prefer ALTER TABLE over direct file copy for transportable tablespaces.
Use Galaxy’s schema-aware AI copilot to review CREATE TABLE and highlight plugin requirements before deployment, reducing production surprises.
Error 3719 ER_TABLESPACE_MISSING indicates the tablespace file is not found; importing the tablespace or recreating the table solves it.
Error 1005 Cannot create table often follows when the plugin rejects a CREATE TABLE attempt; examine the last engine error in SHOW ENGINE INNODB STATUS for detail.
Storage engines like NDB Cluster demand a primary key and specific charset settings. Missing elements trigger error 3098.
Importing an InnoDB tablespace with a different ROW_FORMAT than the current server violates validation checks.
Plugins that manage partitions may reject RANGE or LIST partitioned tables created with default engine rules.
Upgrading MySQL or a plugin can tighten validation logic, making previously valid tables non-compliant.
Raised when MySQL cannot locate the tablespace file during ALTER TABLE or IMPORT TABLESPACE.
Indicates physical table corruption; unlike 3098, it relates to on-disk damage rather than metadata validation.
Occurs when MySQL cannot create a table owing to plugin or engine restrictions caught at create time.
The general log and error log usually mention the plugin or engine that raised the validation failure, even if the client message is generic.
No. MySQL blocks the statement at the server layer. You must correct the table or disable the plugin.
Disabling a validation plugin turns off the extra integrity checks. Only disable it temporarily after backing up data and confirming the impact.
Galaxy’s context-aware copilot inspects CREATE TABLE and flags discrepancies with plugin rules before you run DML, preventing runtime errors.
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