I'm using Magento 2.3.3 and when I try to reindex, the category flat was not reindexed and shows an error like this: Invalid column data type ""

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Every Answer in here sends me to this Invalid column data type when reindex Magento 2

but that didn't fix it for me, I tried adding

            case 'int unsigned':
                $columnType = 'int';
            case 'smallint unsigned':
                $columnType = 'smallint';
            case 'bigint unsigned':
                 $columnType = 'bigint';

into getDdlTypeByColumnType function of "vendor/magento/module-eav/Model/ResourceModel/Helper.php" but that didn't work, any other Solutions?

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