#1790 Default schema list loading enhancement

Former-commit-id: f48b56f9

plugins/org.jkiss.dbeaver.core/src/org/jkiss/dbeaver/ui/dialogs/connection/ConnectionPageInitialization.java

@@ -55,10 +55,7 @@ import org.jkiss.dbeaver.model.connection.DBPConnectionConfiguration;
 import org.jkiss.dbeaver.model.connection.DBPConnectionType;
 import org.jkiss.dbeaver.model.runtime.AbstractJob;
 import org.jkiss.dbeaver.model.runtime.DBRProgressMonitor;
-import org.jkiss.dbeaver.model.struct.DBSEntityAttribute;
-import org.jkiss.dbeaver.model.struct.DBSObject;
-import org.jkiss.dbeaver.model.struct.DBSObjectContainer;
-import org.jkiss.dbeaver.model.struct.DBSObjectFilter;
+import org.jkiss.dbeaver.model.struct.*;
 import org.jkiss.dbeaver.model.struct.rdb.DBSCatalog;
 import org.jkiss.dbeaver.model.struct.rdb.DBSSchema;
 import org.jkiss.dbeaver.model.struct.rdb.DBSTable;
@@ -169,7 +166,14 @@ class ConnectionPageInitialization extends ConnectionWizardPage {
                         }
                     }
                     if (dataSource instanceof DBSObjectContainer) {
-                        new SchemaReadJob((DBSObjectContainer) dataSource).schedule();
+                        DBSObjectContainer schemaContainer = (DBSObjectContainer) dataSource;
+                        if (dataSource instanceof DBSObjectSelector) {
+                            DBSObject defaultObject = ((DBSObjectSelector) dataSource).getDefaultObject();
+                            if (defaultObject instanceof DBSObjectContainer) {
+                                schemaContainer = (DBSObjectContainer) defaultObject;
+                            }
+                        }
+                        new SchemaReadJob(schemaContainer).schedule();
                     }
                 } else {
                     isolationLevel.setEnabled(false);