Support for Multiple ON CONFLICT columns in SQLite

[ghost]

Adding support for multiple ON CONFLICT columns would be greatly appreciated.

[dzikoysk]

Indexes with PostgreSQL should work fine, for SQLite I was not able to support this functionality. I don't know it it does not support this or I did something wrong 🤔

You can create index with multiple columns using withUnique:

• exposed-upsert/src/test/kotlin/net/dzikoysk/exposed/upsert/spec/StatisticsRepository.kt

  Line 57 in 4ed9ec5

  val uniqueTypeValue = withUnique("unique_http_method_to_uri", httpMethod, uri)