4124
MariaDBERRORCriticalHIGH confidence
Column specification is too long for BLOB or TEXT
Production Risk
Low — DDL fails; no data is affected.
Why it happens
- 1A BLOB or TEXT column was defined with an explicit length that exceeds the maximum for the data type.
Fix
Use the appropriate BLOB/TEXT type for the required size
Why this works
Use TINYBLOB, BLOB, MEDIUMBLOB, or LONGBLOB depending on the maximum required data size.
What not to do
✕
Sources
Official documentation ↗
MySQL 8.0 — 4124 ER_TOO_LONG_FIELDBLOB2
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