Select catalog.id, catalog.alias, tree.alias as catalias from catalog, catalog_tree as tree where tree.id=catalog.cat and tree.hide=0 and catalog.hide=0 aorder by alias asc limit 40000,20000

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You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'aorder by alias asc limit 40000,20000' at line 1