Upgrade failed with "duplicate key value violates unique constraint" error

installation
19

Okay, I did the following from pgsql:

SELECT *
	FROM post_custom_fields
	WHERE name = 'polls'
	AND value LIKE '%399fc6670871474cd7ce0458401fd299%';

It displayed me one row. So, I removed it:

DELETE FROM post_custom_fields
	WHERE name = 'polls'
	AND value LIKE '%399fc6670871474cd7ce0458401fd299%';

Note: The proper way would be to remove by row id, but since it returned just a single row I did just that. :slight_smile:

After that I re-started upgrade and it completed successfully. Thanks to everyone who posted their hints! :slight_smile:

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