use append to add events from your second index to the result from summary index:
| tstats count FROM your_summary_index GROUPBY field1, field2, field3 | append [search your_index earliest="-d@d" latest=now] | table field1, field2, field3
using -7d@d and -d@d as earliest and latest in main search.
can i use the same command for dashboards to.. i have created a dashboard with 6 panel's, with last 7days time frame for transaction's count between the A-b, B-c, C-D applications, daily more than 1lakh + transactions are flowing , now i want to use summary index for improving the performance.
I'm not sure to have understood your request.
Using the same logic: instead table you can use the calculations and elaboration to have the output you want.
Yes it is. It requires using append, join, union, or some other SPL command to combine the result sets together.
Can you share more information about how you search the data and what transforms you are applying to get the final result? The more you share, the more likely the community can give you a very detailed answer.