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max ( ) function
Does a max function always trigger a FTS? What are the ways around it?
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according the manuals this is not allowed because max is a group function. anyone with a solution for this ?
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Do you have index on that column at all. If so it should use index full scan.
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mmhhhh... an Index Full Scan to get all rows in the table would be more expensive than a Full Table Scan.
Pablo (Paul) Berzukov
Author of Understanding Database Administration available at amazon and other bookstores.
Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
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mmhhhh... an Index Full Scan to get all rows in the table would be more expensive than a Full Table Scan
It's a max function, it does not need to read all details from table rows. It'll get the details from index.
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 Originally Posted by malay_biswal
It's a max function, it does not need to read all details from table rows. It'll get the details from index.
I stand corrected, you are right.
Pablo (Paul) Berzukov
Author of Understanding Database Administration available at amazon and other bookstores.
Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
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