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@mdedetrich, currently, I can't find a way to generate `WHERE t1.id = t2.linked_ids[1]` by using `slick`.

@mdedetrich yes, let's file an issue to slick.

@Vishnugmavelil when defining `CustomPostgresProfile`, try like this, ```scala trait CustomPostgresProfile extends ExPostgresProfile with PgPlayJsonSupport { ... override val api: PostgresJsonSupportAPI = new PostgresJsonSupportAPI {} trait PostgresJsonSupportAPI extends API with JsonImplicits...

@josh-s-g did you install postgis extension? _After installed the software, you still need enable it by executing `CREATE EXTENSION IF NOT EXISTS postgis` in the target database._

Can't point out why it didn't work, and why `bytea` appeared here? Maybe some codes weren't what it looks, but this requires your double checking. _Anyway the `gEquals`/`ST_Equals` support should...

No. You should install postgis by youself.

Well, it's up to `slick` instead of `slick-pg`. ;-)

It's a many RDBMS specific feature. Maybe, we should do it with plain sql, or sql script. slick-pg is a helper lib, it just wants to do something instead of...

Pls confirm your postgres is running on localhost:5432, if not, you need specify it in the url. Then, pls check whether the auth way for local is set to `trust`...

Your codes can run normally, after adjusted some type mapper definition codes from ```scala trait MyArrayImplicitsPlus { ... implicit val institutionListTypeWrapper = new SimpleArrayJdbcType[Institution]("int8") .basedOn[Long](_.value, new Institution(_)).to(_.toList) implicit val marketFinancialProductWrapper...