Test:wikidata-Get ta.labels without bracket,comma, etc.

SQL

use wikidatawiki_p;

 select CONCAT("Q",ips_item_id,'~',ips_site_page),
        if(ips_site_page not like '%,%' and ips_site_page not like '%(%' and ips_site_page not like '%)%',
            1, if(ips_site_page like '%,%' and ips_site_page not like '%(%' and ips_site_page not like '%)%',
                  2, if(ips_site_page not like '%,%' and (ips_site_page like '%(%' or ips_site_page like '%)%'),
                      3, 4
                  )
            )
        ) as ips_item_id_type

   from wb_items_per_site i

  where i.ips_site_id='tawiki'
    and not exists
        (select term_entity_id
           from wb_terms
          where i.ips_item_id = term_entity_id
            and term_type = "label"
            and term_language='ta')

  group by ips_item_id
  order by ips_item_id_type
  limit 3000;
SQL

Checking query status...
