Okay to merge included columns on otherwise identical indexes?





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I have two indexes that index the same field on the same table. The only difference between them is the included columns.



There's no reason I shouldn't combine the included columns and just have one index, right?






sql-server index







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    3















    I have two indexes that index the same field on the same table. The only difference between them is the included columns.



    There's no reason I shouldn't combine the included columns and just have one index, right?






    sql-server index







    share|improve this question

























      3












      3








      3








      I have two indexes that index the same field on the same table. The only difference between them is the included columns.



      There's no reason I shouldn't combine the included columns and just have one index, right?






      sql-server index







      share|improve this question














      I have two indexes that index the same field on the same table. The only difference between them is the included columns.



      There's no reason I shouldn't combine the included columns and just have one index, right?






      sql-server index




      sql-server index






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 6 hours ago









      BVernonBVernon

      218413




      218413






















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          Yes, you should merge these indexes and only keep one, as long as you verify that:




          • Neither of them are marked as UNIQUE (in which case, preserve that one)


          • Neither of them have a filter condition


          • Neither of them are expressly referenced in an index hint







          share|improve this answer
























          • Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)

            – BVernon
            4 hours ago












          Your Answer








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          1 Answer
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          active

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          5














          Yes, you should merge these indexes and only keep one, as long as you verify that:




          • Neither of them are marked as UNIQUE (in which case, preserve that one)


          • Neither of them have a filter condition


          • Neither of them are expressly referenced in an index hint







          share|improve this answer
























          • Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)

            – BVernon
            4 hours ago
















          5














          Yes, you should merge these indexes and only keep one, as long as you verify that:




          • Neither of them are marked as UNIQUE (in which case, preserve that one)


          • Neither of them have a filter condition


          • Neither of them are expressly referenced in an index hint







          share|improve this answer
























          • Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)

            – BVernon
            4 hours ago














          5












          5








          5







          Yes, you should merge these indexes and only keep one, as long as you verify that:




          • Neither of them are marked as UNIQUE (in which case, preserve that one)


          • Neither of them have a filter condition


          • Neither of them are expressly referenced in an index hint







          share|improve this answer













          Yes, you should merge these indexes and only keep one, as long as you verify that:




          • Neither of them are marked as UNIQUE (in which case, preserve that one)


          • Neither of them have a filter condition


          • Neither of them are expressly referenced in an index hint








          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 5 hours ago









          Erik DarlingErik Darling

          22.9k1269113




          22.9k1269113













          • Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)

            – BVernon
            4 hours ago



















          • Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)

            – BVernon
            4 hours ago

















          Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)

          – BVernon
          4 hours ago





          Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)

          – BVernon
          4 hours ago


















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