Unnecessary data loading in the aggregation state-recreation process in persisted aggregation.

[janithcmw]

Description:
Unnecessary data will load to the memory in the aggregation state-recreation process and because of this OOMs can occur based on the data quantity in the database.

Affected Product Version:
WSO2EI-6.6.0

OS, DB, other environment details and versions:
OS: N/A
Client: N/A
Env (Docker/K8s): N/A

Steps to reproduce:
Populate a larger amount of analytics data to lower level granularity and trigger the state recreation process to upper-level granularity.

Related Issues:
wso2/product-apim#12089

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