chore(query): auto cast int to string for concat functions

[sundy-li]

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Summary

1. auto cast int to string for concat functions
2. add array_intersection function which outputs array with element both in arg0 and arg1.

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