On Mar 21, 2011, at 10:42 AM, preetika tyagi wrote:
> Query: INSERT INTO table1 SELECT * FROM table2.
> Execution Time: A ms.
>
> Query: INSERT INTO table1 SELECT * FROM table2.
> Execution Time: B ms
If session is same, then
B < A if the data is cached due to execution of first statement.
B > A, if the there is any change happened Or Any session has evicted the cached data.
Thanks & Regards,
Vibhor Kumar
EnterpriseDB Corporation
The Enterprise PostgreSQL Company
vibhor.kumar@enterprisedb.com
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