saved from : http://donetsk.mycityua.com/p404.html
(    SELECT      MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            MAT.AuthorName,
                                            AUT.AuthorPhoto,
                                            AUT.AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'top_article' as sql_type
                                   FROM ContentMaterials MAT
                                   USE INDEX(indSMat)
                                   INNER JOIN ContentCategoriesDonetsk CAT ON CAT.CategoryID = MAT.CategoryID
                                   INNER JOIN ContentAuthors AUT ON AUT.AuthorID = MAT.AuthorGuid
                                   WHERE MAT.ContentType = 1 AND MAT.isTop = 1 AND MAT.dtPublish < 1226098655 AND MAT.isPublished = 1 AND MAT.isDelete = 0
                                   ORDER BY MAT.dtPublish DESC
                                   LIMIT 1
                             ) UNION (    
                                   SELECT   MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'web_conf' as sql_type
                                   FROM ContentMaterials MAT
                                   USE INDEX(indSMatC)
                                   INNER JOIN ContentCategoriesDonetsk CAT ON CAT.CategoryID = MAT.CategoryID
                                   WHERE MAT.ContentType = 1 AND MAT.CategoryID = 68 AND MAT.dtPublish < 1226098655 AND MAT.isPublished = 1 AND MAT.isDelete = 0
                                   ORDER BY MAT.dtPublish DESC
                                   LIMIT 1
                             ) UNION (
                                   SELECT   MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'guest' as sql_type
                                   FROM ContentMaterials MAT
                                   USE INDEX(indSMatC)
                                   INNER JOIN ContentCategoriesDonetsk CAT ON CAT.CategoryID = MAT.CategoryID
                                   WHERE MAT.ContentType = 1 AND MAT.CategoryID = 16 AND MAT.dtPublish < 1226098655 AND MAT.isPublished = 1 AND MAT.isDelete = 0
                                   ORDER BY MAT.dtPublish DESC
                                   LIMIT 1
                             ) UNION (    
                                   SELECT   MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            MAT.AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'hot_articles' as sql_type
                                   FROM ContentMaterials MAT
                                   USE INDEX(indSMatH)
                                   INNER JOIN ContentCategoriesDonetsk CAT ON CAT.CategoryID = MAT.CategoryID
                                   INNER JOIN ContentAuthors AUT ON AUT.AuthorID = MAT.AuthorGuid
                                   WHERE MAT.ContentType = 1 AND MAT.isHot = 1 AND MAT.dtPublish < 1226098655 AND MAT.isPublished = 1 AND MAT.isDelete = 0 
                                   ORDER BY MAT.dtPublish DESC
                                   LIMIT 4
                                ) UNION (
                                   SELECT   MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'city_articles' as sql_type
                                  FROM ContentMaterials MAT 
                                  USE INDEX(indSMatCHC)
                                  INNER JOIN  ContentCategoriesDonetsk CAT ON MAT.CategoryID = CAT.CategoryID
                                  INNER JOIN ContentAuthors AUT ON AUT.AuthorID = MAT.AuthorGuid
                                  WHERE MAT.ContentType = 1 AND MAT.CategoryID = 10 AND MAT.isHotCategory = 1 AND MAT.dtPublish < 1226098655 AND MAT.isPublished = 1 AND MAT.isDelete = 0
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 5
                             ) UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'country_articles' as sql_type
                                  FROM ContentMaterials MAT 
                                  USE INDEX(indSMatCHC)
                                  INNER JOIN  ContentCategoriesDonetsk CAT ON MAT.CategoryID = CAT.CategoryID
                                  INNER JOIN ContentAuthors AUT ON AUT.AuthorID = MAT.AuthorGuid
                                  WHERE MAT.ContentType = 1 AND MAT.CategoryID = 11 AND MAT.isHotCategory = 1 AND MAT.dtPublish < 1226098655 AND MAT.isPublished = 1 AND MAT.isDelete = 0
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 5
                             ) UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'world_articles' as sql_type
                                  FROM ContentMaterials MAT 
                                  USE INDEX(indSMatCHC)
                                  INNER JOIN  ContentCategoriesDonetsk CAT ON MAT.CategoryID = CAT.CategoryID
                                  INNER JOIN ContentAuthors AUT ON AUT.AuthorID = MAT.AuthorGuid
                                  WHERE MAT.ContentType = 1 AND MAT.CategoryID = 12 AND MAT.isHotCategory = 1 AND MAT.dtPublish < 1226098655 AND MAT.isPublished = 1 AND MAT.isDelete = 0
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 5
                             ) UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'sport_articles' as sql_type
                                  FROM ContentMaterials MAT 
                                  USE INDEX(indSMatCHC)
                                  INNER JOIN  ContentCategoriesDonetsk CAT ON MAT.CategoryID = CAT.CategoryID
                                  INNER JOIN ContentAuthors AUT ON AUT.AuthorID = MAT.AuthorGuid
                                  WHERE MAT.ContentType = 1 AND MAT.CategoryID = 13 AND MAT.isHotCategory = 1 AND MAT.dtPublish < 1226098655 AND MAT.isPublished = 1 AND MAT.isDelete = 0
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 5
                             ) UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'people_articles' as sql_type
                                  FROM ContentMaterials MAT 
                                  USE INDEX(indSMatCHC)
                                  INNER JOIN  ContentCategoriesDonetsk CAT ON MAT.CategoryID = CAT.CategoryID
                                  INNER JOIN ContentAuthors AUT ON AUT.AuthorID = MAT.AuthorGuid
                                  WHERE MAT.ContentType = 1 AND MAT.CategoryID = 31 AND MAT.isHotCategory = 1 AND MAT.dtPublish < 1226098655 AND MAT.isPublished = 1 AND MAT.isDelete = 0
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 5
                             ) UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'bomond_articles' as sql_type
                                  FROM ContentMaterials MAT 
                                  USE INDEX(indSMatCHC)
                                  INNER JOIN  ContentCategoriesDonetsk CAT ON MAT.CategoryID = CAT.CategoryID
                                  INNER JOIN ContentAuthors AUT ON AUT.AuthorID = MAT.AuthorGuid
                                  WHERE MAT.ContentType = 1 AND MAT.CategoryID = 19 AND MAT.isHotCategory = 1 AND MAT.dtPublish < 1226098655 AND MAT.isPublished = 1 AND MAT.isDelete = 0
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 5
                             ) UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            MAT.AuthorName,
                                            AUT.AuthorPhoto,
                                            AUT.AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'view_from_articles' as sql_type
                                  FROM ContentMaterials MAT 
                                  USE INDEX(indSMatC)
                                  INNER JOIN  ContentCategoriesDonetsk CAT ON MAT.CategoryID = CAT.CategoryID
                                  INNER JOIN ContentAuthors AUT ON AUT.AuthorID = MAT.AuthorGuid
                                  WHERE MAT.ContentType = 1 AND MAT.CategoryID = 39 AND MAT.dtPublish < 1226098655 AND MAT.isPublished = 1 AND MAT.isDelete = 0
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 1
                             ) UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            MAT.AuthorName,
                                            AUT.AuthorPhoto,
                                            AUT.AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'retro_articles' as sql_type
                                  FROM ContentMaterialsDonetsk MAT 
                                  USE INDEX(indSMatC)
                                  INNER JOIN  ContentCategoriesDonetsk CAT ON MAT.CategoryID = CAT.CategoryID
                                  INNER JOIN ContentAuthors AUT ON AUT.AuthorID = MAT.AuthorGuid
                                  WHERE MAT.ContentType = 1 AND MAT.CategoryID = 36 AND MAT.dtPublish < 1226098655 AND MAT.isPublished = 1 AND MAT.isDelete = 0
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 1
                             ) UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'hot_news' as sql_type
                                  FROM ContentMaterials MAT
                                  USE INDEX(indSMatH)
                                  INNER JOIN ContentCategoriesDonetsk CAT ON CAT.CategoryID = MAT.CategoryID
                                  WHERE MAT.ContentType = 2 AND MAT.isHot = 1 AND MAT.dtPublish < 1226098655 AND MAT.isDelete = 0 AND MAT.isPublished = 1
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 5
                             ) UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'other_news' as sql_type
                                  FROM ContentMaterials MAT
                                  USE INDEX(indSMatH)
                                  INNER JOIN ContentCategoriesDonetsk CAT ON CAT.CategoryID = MAT.CategoryID
                                  WHERE MAT.ContentType = 2 AND MAT.isHot = 0 AND MAT.dtPublish < 1226098655 AND MAT.isDelete = 0 AND MAT.isPublished = 1
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 10
                             ) UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'narod_news' as sql_type
                                  FROM ContentMaterials MAT
                                  USE INDEX(indSMatH)
                                  INNER JOIN ContentCategoriesDonetsk CAT ON CAT.CategoryID = MAT.CategoryID
                                  WHERE MAT.ContentType = 3 AND MAT.dtPublish < 1226098655 AND MAT.isDelete = 0 AND MAT.isPublished = 1
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 3
                             ) UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'goodies_articles' as sql_type
                                  FROM ContentMaterials MAT
                                  USE INDEX(indSMatCHC)
                                  INNER JOIN ContentCategoriesDonetsk CAT ON CAT.CategoryID = MAT.CategoryID
                                  WHERE MAT.ContentType = 1 AND MAT.CategoryID = 14 AND MAT.isHotCategory = 1 AND MAT.dtPublish < 1226098655 AND MAT.isDelete = 0 AND MAT.isPublished = 1
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 5
                             )  UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'health_articles' as sql_type
                                  FROM ContentMaterials MAT
                                  USE INDEX(indSMatCHC)
                                  INNER JOIN ContentCategoriesDonetsk CAT ON CAT.CategoryID = MAT.CategoryID
                                  WHERE MAT.ContentType = 1 AND MAT.CategoryID = 15 AND MAT.isHotCategory = 1 AND MAT.dtPublish < 1226098655 AND MAT.isDelete = 0 AND MAT.isPublished = 1
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 5
                             ) UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'kopilka_articles' as sql_type
                                  FROM ContentMaterials MAT
                                  USE INDEX(indSMatCHC)
                                  INNER JOIN ContentCategoriesDonetsk CAT ON CAT.CategoryID = MAT.CategoryID
                                  WHERE MAT.ContentType = 1 AND MAT.CategoryID = 55 AND MAT.isHotCategory = 1 AND MAT.dtPublish < 1226098655 AND MAT.isDelete = 0 AND MAT.isPublished = 1
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 5
                             ) UNION (
                                  SELECT    MAT.ContentID,
                                            MAT.ContentType,
                                            MAT.CategoryID,
                                            CAT.CategoryName,
                                            CAT.CategorySEO,
                                            MAT.Title,
                                            MAT.SubTitle,
                                            MAT.AnonsContent,
                                            MAT.Image1,
                                            MAT.Image2,
                                            MAT.image_big,
                                            MAT.image_medium,
                                            MAT.image_small,
                                            MAT.AuthorID,
                                            MAT.AuthorGuid,
                                            NULL as AuthorName,
                                            NULL as AuthorPhoto,
                                            NULL as AuthorUrl,
                                            MAT.dtPublish,
                                            MAT.isHot,
                                            MAT.isHotCategory,
                                            MAT.isTop,
                                            MAT.isPublished,
                                            MAT.isComment,
                                            MAT.isDelete,
                                            'travels_articles' as sql_type
                                  FROM ContentMaterials MAT
                                  USE INDEX(indSMatCHC)
                                  INNER JOIN ContentCategoriesDonetsk CAT ON CAT.CategoryID = MAT.CategoryID
                                  WHERE MAT.ContentType = 1 AND MAT.CategoryID = 38 AND MAT.isHotCategory = 1 AND MAT.dtPublish < 1226098655 AND MAT.isDelete = 0 AND MAT.isPublished = 1
                                  ORDER BY MAT.dtPublish DESC
                                  LIMIT 5
                             )
                             ORDER BY dtPublish DESC
    
Key 'indSMatCHC' doesn't exist in table 'MAT'