I want to add a timestamp to attributes, so i can find out when a value für an attributes was created.
I tried to just add a column in the database table "catalog_product_entity_varchar" but only got an error because there were too many columns in the table:
Cardinality violation: 1222 The used SELECT statements have a different number of columns
I'm using CE 1.9.
Thank you for your help
Solved! Go to Solution.
Can you tell how to column in database table using code or direst create column into database.
I tried both.
But I found a solution:
the problem wasn't that i added a column to "catalog_product_entity_varchar" but that i didn't add the column to the 4 other attribute-value tables.
After i added the column to the following tables via install script it worked perfectly:
Thank you for looking into it.