fix(query): join predict use cast_expr_to_non_null_boolean

[sundy-li]

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Summary

1. join predict use cast_expr_to_non_null_boolean
2. Improve Buffer index value

bench_kernels/function_buffer_index_unchecked_iterator/10240
                        time:   [4.5793 µs 4.6071 µs 4.6383 µs]
                        change: [-48.367% -47.735% -47.131%] (p = 0.00 < 0.05)
                        Performance has improved.
Found 11 outliers among 100 measurements (11.00%)

closes #16916

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