PgVectorFilterExpressionConverter was generating incorrect SQL for
IN and NOT IN filters with PostgreSQL JSON data types. This caused
BadSqlGrammarException errors when executing queries.
This change modifies the converter to generate correct SQL syntax
for these operations, ensuring compatibility with PostgreSQL's JSON
handling capabilities.
Why:
- Improves query reliability for PgVector stores
- Enables more complex filtering operations on JSON data
- Eliminates unexpected errors in query execution
Fixes#1179
6bd059a8b7