WordPress database error: [Can't create/write to file '/var/tmp/#sql_4c1_0.MAI' (Errcode: 28)]
SELECT lbc_posts.* FROM lbc_posts INNER JOIN lbc_postmeta ON ( lbc_posts.ID = lbc_postmeta.post_id ) WHERE 1=1 AND ( ( lbc_postmeta.meta_key = '_wp_page_template' AND lbc_postmeta.meta_value = 'template-contact.php' ) ) AND lbc_posts.post_type = 'page' AND ((lbc_posts.post_status = 'publish')) GROUP BY lbc_posts.ID ORDER BY lbc_posts.post_title ASC

WordPress database error: [Can't create/write to file '/var/tmp/#sql_4c1_0.MAI' (Errcode: 28)]
SHOW FULL COLUMNS FROM `lbc_options`