Error
Error Code:
1173
MySQL Error 1173: Table Type Needs Primary Key
Description
Error 1173 indicates that you are attempting to create or modify a table using a storage engine that explicitly requires a primary key, but one has not been defined. This typically happens with storage engines like NDBCLUSTER (MySQL Cluster) which rely on primary keys for their internal architecture and data management.
Error Message
This table type requires a primary key
Known Causes
3 known causesUsing NDBCLUSTER Storage Engine
The NDBCLUSTER storage engine, commonly used in MySQL Cluster, strictly requires a primary key for all tables to ensure data consistency and distribution across nodes.
Omitted Primary Key in SQL
The `CREATE TABLE` or `ALTER TABLE` statement you executed did not explicitly define a `PRIMARY KEY` constraint for the table being created or modified.
Converting Table to Strict Engine
You may be attempting to change an existing table's storage engine to one (like NDBCLUSTER) that mandates a primary key, but the table currently lacks one.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service