Clean up namespace handling (#65555)

Author: mwbayley

airbyte-integrations/connectors/source-postgres/src/main/kotlin/io/airbyte/integrations/source/postgres/config/PostgresSourceConfiguration.kt

@@ -24,7 +24,6 @@ import java.net.URLDecoder
 import java.net.URLEncoder
 import java.nio.charset.StandardCharsets
 import java.time.Duration
-import org.postgresql.PGProperty
 
 private val log = KotlinLogging.logger {}
 
@@ -156,8 +155,7 @@ constructor(
         var encodedDatabaseName = URLEncoder.encode(pojo.database, StandardCharsets.UTF_8.name())
 
         // Build JDBC URL.
-        // TODO: handle schemas correctly
-        val jdbcUrlFmt = "jdbc:postgresql://%s:%d/$encodedDatabaseName?${PGProperty.CURRENT_SCHEMA}=public"
+        val jdbcUrlFmt = "jdbc:postgresql://%s:%d/$encodedDatabaseName"
 
         // Internal configuration settings.
         val checkpointTargetInterval: Duration =

airbyte-integrations/connectors/source-postgres/src/main/resources/application.yml

@@ -19,7 +19,7 @@ airbyte:
         memory-capacity-ratio: 0.6
         estimated-record-overhead-bytes: 16
         estimated-field-overhead-bytes: 16
-        namespace-kind: SCHEMA # TODO: should be CATALOG_AND_SCHEMA
+        namespace-kind: SCHEMA
         include-pseudo-columns: false
     check:
       jdbc: