an error displayed during hikaauction installing

-- HikaShop version -- : 2.6.4
-- HikaAuction version -- : 1.2.1
-- Joomla version -- : 3.6.2
-- PHP version -- : 7.0.8
-- Browser(s) name and version -- : chrome 53
-- Error-message(debug-mod must be tuned on) -- : an error displayed when I try to install the newest hikaauction component

Hi!
I got an error when I try to install the newest hikaauction component
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IGNORE TABLE `#__hikashop_product` ADD COLUMN `product_auction` INT(10) NOT NULL' at line 1 SQL=ALTER IGNORE TABLE `#__hikashop_product` ADD COLUMN `product_auction` INT(10) NOT NULL DEFAULT '0',ADD COLUMN `product_bid_increment` INT(10) NOT NULL DEFAULT '-1'

Our Mysql Database Version is 5.7.13
Database Collation is utf8_general_ci
Database Connection Collation is utf8mb4_general_ci

Thank you~

Hi,

Please re-download HikaAuction to get a patch on the installer.
"ALTER IGNORE" is still valid regarding the MySQL 5.7 documentation but we had to remove the usage of it in HikaShop due to that kind of error message.
dev.mysql.com/doc/refman/5.7/en/alter-table.html

Regards,