SELECT

    main.page_title AS title_en,

    ll.ll_title AS title_id,

    cl_prio.cl_to AS priority,

    cl_qual.cl_to AS quality,

    main.page_is_redirect AS is_redirect,

    main.page_len AS article_length,

    talk.page_len AS talk_length,  #! excluding subpage(s)

    main.page_touched AS last_touched,   #! may not be informative... i think

    (SELECT

        # count unique(?) language of this article

        COUNT(t_ll.ll_lang)

        FROM langlinks AS t_ll

        WHERE t_ll.ll_from = main.page_id

    ) AS total_lang,

    (SELECT 

        # count unique(?) articles in main namespace, that linked to this article 

        COUNT(t_pl.pl_from)

        FROM pagelinks AS t_pl

        INNER JOIN linktarget AS t_lt ON

            t_lt.lt_id = t_pl.pl_target_id

            AND t_lt.lt_namespace = 0

            AND t_pl.pl_from_namespace = 0

        WHERE t_lt.lt_title = main.page_title

    ) AS total_inlink,

    (SELECT

        # count unique(?) article in main namespace, that linked from this article

        COUNT(t_pl.pl_target_id)

        FROM pagelinks AS t_pl

        INNER JOIN linktarget AS t_lt ON

            t_lt.lt_id = t_pl.pl_target_id

            AND t_lt.lt_namespace = 0

            AND t_pl.pl_from_namespace = 0

        WHERE t_pl.pl_from = main.page_id

    ) AS total_outlink

​

FROM page AS talk

​

# inner join to cut table size

# focus to all possible priority

INNER JOIN categorylinks AS cl_prio ON

    cl_prio.cl_from = talk.page_id

    AND cl_prio.cl_to IN (

        'Top-priority_mathematics_articles',

        'High-priority_mathematics_articles',

        'Mid-priority_mathematics_articles',

        'Low-priority_mathematics_articles',

        'NA-priority_mathematics_articles',

        'Unknown-priority_mathematics_articles')

# focus to all possible quality for an article in main namespace

INNER JOIN categorylinks AS cl_qual ON

    cl_qual.cl_from = talk.page_id

    AND cl_qual.cl_to IN (

        'FA-Class_mathematics_articles',    # featured article

        'FL-Class_mathematics_articles',    # featured list

        'GA-Class_mathematics_articles',    # good article

        'B-Class_mathematics_articles',

        'C-Class_mathematics_articles',

        'Start-Class_mathematics_articles',

        'Stub-Class_mathematics_articles',

        'List-Class_mathematics_articles',

        'Disambig-Class_mathematics_articles',

        'Redirect-Class_mathematics_articles',

        'Unassessed_mathematics_articles')

​

# join to get the main article's ID

INNER JOIN page AS main ON

    main.page_namespace = 0

    AND main.page_title = talk.page_title

​

# join because i need this data to help idwiki. left join is

# intentional, to get empty result if page isn't created yet 

LEFT JOIN langlinks AS ll ON

    ll.ll_from = main.page_id

    AND ll.ll_lang = 'id'