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Results tagged with index
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user 3400
A database structure that can improve the speed of queries at the cost of disk space and slower inserts/updates. It stores a copy of one or more columns sorted but structures the data differently to allow faster access.
16
votes
5
answers
589
views
Indexing from start or when performance problem arises?
We can also create temporary index while executing a query. What are the pros and cons of such techniques? …
- 2,023
96
votes
5
answers
43k
views
Working of indexes in PostgreSQL
Index(user_id1,user_id2) and Index(user_id2,user_id1)
If I create Primary Key(user_id1,user_id2), does it automatically create indexes for it and
If the indexes in the first question are not equivalent … , then which index is created on above primary key command? …
- 2,023