Integrity constraint violation: 1062 Duplicate entry ‘3-2-9’ for key ‘PRIMARY’, query was: ALTER TABLE catalog_category_product_index_tmp
ADD CONSTRAINT PRIMARY KEY (category_id
,product_id
,store_id
), COMMENT=’Catalog Category Product Indexer temporary table’
this error comes when I run the setup:upgrade command in Magento 2
please make some suggestions to get rid of this error