fix(query): system.columns will return empty result when where database in (y,x)

[TCeason]

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Summary

Problem

This PR fixes system.columns returning incomplete results when users have partial grants and queries include multi-database conditions like WHERE database IN (...).

The root cause was the old filtering mechanism, find_eq_filter, failing to correctly process such complex filters.

Solution

By replacing it with find_eq_or_filter, the system now accurately identifies and displays all accessible metadata, significantly improving system.columns reliability for users with granular access rights.

• fixes: bug: normal user query from system.columns with or filter will return empty result #18056

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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