MySQL warns that the legacy MAXDB SQL mode treats TIMESTAMP like DATETIME; this mode is deprecated and must be disabled.
WARN_DEPRECATED_MAXDB_SQL_MODE_FOR_TIMESTAMP appears when MySQL runs with MAXDB SQL mode, making TIMESTAMP identical to DATETIME. Disable MAXDB mode or switch TIMESTAMP columns to DATETIME to clear the warning and future-proof your schema.
WARN_DEPRECATED_MAXDB_SQL_MODE_FOR_TIMESTAMP
MySQL raises warning 3226 when the server starts or a query runs while the MAXDB SQL mode is active and a TIMESTAMP column is present. The engine reminds you that, under MAXDB, TIMESTAMP behaves exactly like DATETIME, defeating its time-zone and auto-update features.
The message signals that MAXDB mode is deprecated and will disappear in a future MySQL release. Ignoring it puts upcoming upgrades at risk because TIMESTAMP semantics will revert to the default behavior once the mode is removed.
The only trigger is enabling the MAXDB SQL mode globally or per session. Administrators often add MAXDB to sql_mode for legacy application compatibility without realizing its side effect on TIMESTAMP.
Any DDL or DML touching a TIMESTAMP column while MAXDB is active prompts the warning. It surfaces on server startup if the mode is set in my.cnf, or during connection if sql_mode is set by client applications.
Remove MAXDB from sql_mode and review your schema. If you relied on MAXDB to force TIMESTAMP to behave like DATETIME, convert those columns to true DATETIME types before disabling the mode.
After changes, restart MySQL or reconnect sessions to confirm the warning no longer appears and that TIMESTAMP fields now follow standard MySQL semantics (UTC storage, automatic defaults, ON UPDATE support).
Server-wide sql_mode in my.cnf contains 'MAXDB'. Simply delete the token and restart MySQL.
An application executes 'SET SESSION sql_mode = "MAXDB"'. Remove that statement or replace it with the required individual flags, avoiding MAXDB.
Audit sql_mode at startup with SELECT @@GLOBAL.sql_mode to ensure deprecated modes are absent. Embed the same check in CI pipelines.
Prefer explicit DATETIME columns if you need date-time storage without time-zone handling. Use TIMESTAMP only when you want automatic UTC behavior and row tracking.
ERROR 1231: Variable 'sql_mode' can't be set to the value - occurs when an invalid mode is supplied; verify spelling and supported flags.
ERROR 1067: Invalid default value for 'created_at' - arises when DATETIME default is invalid; switch to TIMESTAMP or supply a valid constant.
my.cnf or my.ini contains sql_mode=MAXDB or a composite list that includes MAXDB.
Application code issues SET SESSION sql_mode='MAXDB' to mimic SAP MaxDB behavior.
Old deployment scripts enable MAXDB for compatibility with historic TIMESTAMP usage.
Raised when an unrecognized or deprecated mode is supplied; fix by removing the bad token.
Occurs when ONLY_FULL_GROUP_BY is enabled and SELECT fields lack aggregation; add GROUP BY columns or disable the mode.
Signals that the NO_AUTO_CREATE_USER mode is deprecated; migrate to CREATE USER syntax.
No - it is a warning, but failure to act may break future upgrades.
Not recommended. The mode is deprecated and will eventually vanish. Remove it during scheduled maintenance.
Existing TIMESTAMP values remain intact, but new inserts will store in UTC and follow TIMESTAMP behaviors. Test thoroughly.
Galaxy flags deprecated SQL modes during query linting and suggests a clean sql_mode string, preventing warnings before deployment.
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