fixes escaping underscores in sqlite

[kans]

This code path is almost certainly not reached by any connector in prod: GetAll, specifying a dynamic prefix, with an underscore in it, in a baton connector.

SQLite: LIKE does not treat \ as an escape by default, so _ / % won’t behave as intended unless you add ESCAPE '\'

Summary by CodeRabbit

Bug Fixes

• Session store operations now correctly handle special characters (underscore, percent, backslash) in prefix filters, ensuring proper data isolation and retrieval during clear and retrieve operations.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

Walkthrough

Replaced non-escaped SQL LIKE prefix filtering with an ESCAPE-aware pattern (using escaped prefix + "%") in session store Clear and getAllChunk, and added tests covering prefixes containing %, _, and \ to verify literal matching and isolation.

Changes

Cohort / File(s)	Summary
SQL ESCAPE-aware Pattern Matching pkg/dotc1z/session_store.go	Replaced raw LIKE prefix checks with prepared patterns using escapeLike(prefix) + "%", adding an ESCAPE clause so %, _, and \ in prefixes are matched literally in Clear and getAllChunk.
Special Character Test Coverage pkg/dotc1z/session_store_test.go	Added multiple tests exercising Clear and GetAll with prefixes containing underscore (_), percent (%), and backslash (\), ensuring selective removal and literal prefix matching across paginated retrievals.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~22 minutes

Poem

🐇 I nibble keys with careful art,

I escape percent, underscore, backslash part.
No wildcard mischief left unfurled,
Literal prefixes saved the world.
Hooray — clean queries, hop and start!

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'fixes escaping underscores in sqlite' directly relates to the main changes in the PR, which implement ESCAPE-aware pattern matching in SQL queries to properly handle special characters (underscores, percent signs, backslashes) in session prefix operations.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

• 📝 Generate docstrings

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}