fix(query): fix incorrect total_bytes_len in string view

[sundy-li]

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Summary

1. add more asserts
2. fix incorrect total_bytes_len in string view

using const UNKNOWN_LEN: u64 = u64::MAX to track with the total_bytes_len was a bad idea cause it may introduce overflow during add/sub.

closes #16880

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