fix: subquery returns wrong results under cluster

[xudong963]

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Summary

• fixes: bug: the group function does not return the correct result #16563

Tests

• Unit Test
• Logic Test
• Benchmark Test
• No Test - Explain why

Type of change

• Bug Fix (non-breaking change which fixes an issue)
• New Feature (non-breaking change which adds functionality)
• Breaking Change (fix or feature that could cause existing functionality not to work as expected)
• Documentation Update
• Refactoring
• Performance Improvement
• Other (please describe):

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This change is 

[what-the-diff]

PR Summary

• Optimized the System to Remove Duplicates More Efficiently
  Reworked the existing logic to better handle and eliminate duplicate information when working with complex queries. This refactoring will make the product more reliable and efficient.

• Enhanced Testing for Data Accuracy
  Introduced a new database test to make sure that duplicate data is effectively removed when we are dealing with sub-queries. This means that the product will be more trustworthy as we can be sure of its data handling capabilities.

• Use of Temporary Data for Testing
  Created a temporary 'test_group' table and filled it with sample data. This is to facilitate the testing process and isn't something that will affect the final product.

• Improved Checking of Data Aggregation Results
  Updated the system with a new query to cross-check results of data aggregation that involves subqueries. This ensures a high level of accuracy when handling duplicates, contributing to the overall fidelity of the service.