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Editorial Team
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Editorial Team
Asked: May 16, 20262026-05-16T04:44:37+00:00 2026-05-16T04:44:37+00:00

For the sake of example, I have a table with columns A B C

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For the sake of example, I have a table with columns A B C D E F G H.

I have created two indexes on the table that correspond to the most used queries. The first is on columns B C D and E. The second is on B C D E and F.

The queries that use these columns are called the same number of times and they are each optimized with respect to the indexes.

My issue is – due to the multiple indexes I have on this table, the row size is quite large. I’d like to remove one of these indexes, but can’t decide which one.

My question is – if I remove the first index (BCDE), will a query that uses these columns still be optimized by an index on (BCDEF)?

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  1. Editorial Team
    Editorial Team
    2026-05-16T04:44:38+00:00Added an answer on May 16, 2026 at 4:44 am

    yes, it will. as well as queries that benefit from using an index on (B), or on (BC), or ON (BCD)

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