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-1

Ok, So in my case, I'll be frequently querying a table based on all of the columns and logically I am inclined to have all the columns indexed. But then if all the columns are going to be indexed should they even be indexed in the first place?

The case in point being, will the "Index on all" approach be faster than the "Full table lookup" or vice versa and why either?

mysql index index-tuning

share|improve this question

asked 20 hours ago

Mohd Abdul MujibMohd Abdul Mujib

1094

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Possible duplicate of What are the disadvantages if indexes are added on all columns?
  
  – George.Palacios
  20 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Index performance is gained because of the queries against it. Show specific queries and the indexes that suit those can be determined.
  
  – danblack
  13 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I would suggest you learn how indexes work and why/when/how they can help. Your question indicates you lack basic understanding of the indexes.
  
  – akuzminsky
  7 hours ago
  

  
  
  
  

add a comment | 

-1

Ok, So in my case, I'll be frequently querying a table based on all of the columns and logically I am inclined to have all the columns indexed. But then if all the columns are going to be indexed should they even be indexed in the first place?

The case in point being, will the "Index on all" approach be faster than the "Full table lookup" or vice versa and why either?

mysql index index-tuning

share|improve this question

asked 20 hours ago

Mohd Abdul MujibMohd Abdul Mujib

1094

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Possible duplicate of What are the disadvantages if indexes are added on all columns?
  
  – George.Palacios
  20 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Index performance is gained because of the queries against it. Show specific queries and the indexes that suit those can be determined.
  
  – danblack
  13 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I would suggest you learn how indexes work and why/when/how they can help. Your question indicates you lack basic understanding of the indexes.
  
  – akuzminsky
  7 hours ago
  

  
  
  
  

add a comment | 

Ok, So in my case, I'll be frequently querying a table based on all of the columns and logically I am inclined to have all the columns indexed. But then if all the columns are going to be indexed should they even be indexed in the first place?

The case in point being, will the "Index on all" approach be faster than the "Full table lookup" or vice versa and why either?

mysql index index-tuning

share|improve this question

asked 20 hours ago

Mohd Abdul MujibMohd Abdul Mujib

1094

share|improve this question

asked 20 hours ago

Mohd Abdul MujibMohd Abdul Mujib

1094

share|improve this question

asked 20 hours ago

Mohd Abdul MujibMohd Abdul Mujib

1094

asked 20 hours ago

Mohd Abdul MujibMohd Abdul Mujib

1094

asked 20 hours ago

Mohd Abdul MujibMohd Abdul Mujib

1094