ERROR: column “col” does not exist
PostgreSQL Column Does Not Exist – Error Explained
When you run a query in PostgreSQL and see:
Why Does This Error Happen?
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The column was never created.
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Typo or misspelling in the column name.
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Case sensitivity (PostgreSQL converts unquoted names to lowercase).
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Wrong table or schema being queried.
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The column was dropped or renamed.
Fixes for PostgreSQL Column Does Not Exist Error
1. Check available columns in the table
\d table_name
2. Correct spelling mistakes
Double-check the column name in your query.
3. Handle case sensitivity
If the column was created with quotes, you must use them:
SELECT col FROM schema_name.table_name
6. Restore dropped or renamed columns
If a column was removed accidentally, restore from backups or add it again with proper data type.
Conclusion
At Learnomate Technologies, we’re here to support you every step of the way with top-notch training in PostgreSQL DBA and more.
For more detailed insights and tutorials, do check out our YouTube channel: www.youtube.com/@learnomate, where we regularly share practical tips and deep dives into essential database topics. And if you’re serious about mastering PostgreSQL DBA, head over to our website for our full training program: learnomate.org/training/postgresql-training/.
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