Hi, everyone

    My test environment: Ignite cluster has 8 nodes, every node has 8 cores CPU 
and 30G memory. Their network has 1000M speed.
    Oracle is deployed in the machine which has 32G memory and  8 cores CPU.

    My db table has 47535542 rows with 99 columns.

    When no index, the cost time of sql: select * from Kc21 where akc273='王妍'
    Oracle: 152s
     Ignite:   61s

    After creating index in the field akc273:
    Oracle: 3s

    Problem 1:I think 61s is too long for this sql in Ignite, how can I 
increase the performance?
    Problem 2 :  How to create index in exsiting cache? Now I only find some 
annotations and configuration to create index before loading data.

    Thanks.



Bob


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