# 287
SELECT *
FROM yii_doc.TO_DELETE_vitrina_vl vl
LEFT JOIN yii_doc.TO_DELETE_vitrina_ko ko ON vl.pa_id = ko.pa_id
WHERE ko.id IS NULL;

# 5 920
SELECT *
FROM yii_doc.TO_DELETE_vitrina_ko ko
LEFT JOIN yii_doc.TO_DELETE_vitrina_vl vl ON vl.pa_id = ko.pa_id
WHERE vl.id IS NULL;

# 2 879
SELECT *
FROM yii_doc.TO_DELETE_vitrina_ko ko
LEFT JOIN yii_doc.TO_DELETE_vitrina_vl vl ON vl.pa_id = ko.pa_id
WHERE vl.id IS NOT NULL;

# 45
SELECT *
FROM yii_doc.TO_DELETE_vitrina_ko ko
LEFT JOIN yii_doc.TO_DELETE_vitrina_vl vl ON vl.pa_id = ko.pa_id
WHERE vl.id IS NOT NULL
    AND (
        NOT(ko.avalaible <=> vl.avalaible)
        OR NOT(ko.price <=> vl.price)
    );