support data type conversion for like predicate

**Is your feature request related to a problem? Please describe.**

#841 's further work

**Describe the solution you'd like**

` ( LIKE | ILIKE) `

- & can convert to string type if possible

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**
Add any other context or screenshots about the feature request here.

Review issue #841 for context on LIKE/ILIKE predicate work. Look at the SQL parser and expression evaluation code, likely in src/parser or src/expr directories. Identify where type conversion for operands occurs and extend it to handle string conversion for match and pattern expressions. Test with SQL queries using LIKE/ILIKE on non-string types.

索引モデルが issue の本文から書いたものです。