Error
Error Code: 54011

PostgreSQL Error 54011: Too Many Columns

📦 PostgreSQL
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Description

This error indicates that a PostgreSQL table definition has exceeded the maximum allowed number of columns. PostgreSQL imposes a hard limit on the number of columns per table, which is typically 1600, preventing the creation or alteration of the table.
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Error Message

too many columns
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Known Causes

3 known causes
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Exceeding Column Limit During Table Creation
Attempting to create a new table with more columns than the PostgreSQL system limit, which is 1600 by default.
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Adding Too Many Columns to Existing Table
Modifying an existing table via `ALTER TABLE ADD COLUMN` operations, causing the total number of columns to exceed the PostgreSQL limit.
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Auto-Generated Schemas
Using Object-Relational Mappers (ORMs) or schema migration tools that automatically generate tables with an excessive number of columns, inadvertently hitting the system limit.
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Solutions

Coming Soon

Detailed 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
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Related Errors

5 related errors