Faster database access

app/schemas/eu.faircode.email.DB/5.json

@@ -2,7 +2,7 @@
   "formatVersion": 1,
   "database": {
     "version": 5,
-    "identityHash": "f6603ac36cf520d5bfc2662bf7853c70",
+    "identityHash": "b14a2bd7371400904e10cb3dd32a5d98",
     "entities": [
       {
         "tableName": "identity",
@@ -86,7 +86,7 @@
       },
       {
         "tableName": "account",
-        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT, `name` TEXT, `host` TEXT NOT NULL, `port` INTEGER NOT NULL, `user` TEXT NOT NULL, `password` TEXT NOT NULL, `primary` INTEGER NOT NULL, `synchronize` INTEGER NOT NULL, `capabilities` TEXT NOT NULL)",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT, `name` TEXT, `host` TEXT NOT NULL, `port` INTEGER NOT NULL, `user` TEXT NOT NULL, `password` TEXT NOT NULL, `primary` INTEGER NOT NULL, `synchronize` INTEGER NOT NULL)",
         "fields": [
           {
             "fieldPath": "id",
@@ -135,12 +135,6 @@
             "columnName": "synchronize",
             "affinity": "INTEGER",
             "notNull": true
-          },
-          {
-            "fieldPath": "capabilities",
-            "columnName": "capabilities",
-            "affinity": "TEXT",
-            "notNull": true
           }
         ],
         "primaryKey": {
@@ -456,6 +450,14 @@
               "ui_seen"
             ],
             "createSql": "CREATE  INDEX `index_message_ui_seen` ON `${TABLE_NAME}` (`ui_seen`)"
+          },
+          {
+            "name": "index_message_ui_hide",
+            "unique": false,
+            "columnNames": [
+              "ui_hide"
+            ],
+            "createSql": "CREATE  INDEX `index_message_ui_hide` ON `${TABLE_NAME}` (`ui_hide`)"
           }
         ],
         "foreignKeys": [
@@ -659,7 +661,7 @@
     ],
     "setupQueries": [
       "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
-      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, \"f6603ac36cf520d5bfc2662bf7853c70\")"
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, \"b14a2bd7371400904e10cb3dd32a5d98\")"
     ]
   }
 }

app/src/main/java/eu/faircode/email/DB.java

@@ -41,7 +41,7 @@ import android.util.Log;
                 EntityAttachment.class,
                 EntityOperation.class
         },
-        version = 4,
+        version = 5,
         exportSchema = true
 )
 
@@ -78,6 +78,7 @@ public abstract class DB extends RoomDatabase {
                 .addMigrations(MIGRATION_1_2)
                 .addMigrations(MIGRATION_2_3)
                 .addMigrations(MIGRATION_3_4)
+                .addMigrations(MIGRATION_4_5)
                 .build();
     }
 
@@ -109,7 +110,15 @@ public abstract class DB extends RoomDatabase {
         @Override
         public void migrate(SupportSQLiteDatabase db) {
             Log.i(Helper.TAG, "DB migration from version " + startVersion + " to " + endVersion);
-            db.execSQL("CREATE  INDEX `index_message_ui_seen` ON `message` (`ui_seen`)");
+            db.execSQL("CREATE INDEX `index_message_ui_seen` ON `message` (`ui_seen`)");
+        }
+    };
+
+    private static final Migration MIGRATION_4_5 = new Migration(4, 5) {
+        @Override
+        public void migrate(SupportSQLiteDatabase db) {
+            Log.i(Helper.TAG, "DB migration from version " + startVersion + " to " + endVersion);
+            db.execSQL("CREATE INDEX `index_message_ui_hide` ON `message` (`ui_hide`)");
         }
     };
 

app/src/main/java/eu/faircode/email/DaoMessage.java

@@ -32,44 +32,39 @@ import java.util.List;
 @Dao
 public interface DaoMessage {
     @Query("SELECT message.*, folder.name as folderName, folder.type as folderType" +
-            ", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread) AS count" +
-            ", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread AND NOT m.ui_seen) AS unseen" +
+            ", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread AND NOT m.ui_hide) AS count" +
+            ", SUM(CASE WHEN message.ui_seen THEN 0 ELSE 1 END) AS unseen" +
             ", (SELECT COUNT(a.id) FROM attachment a WHERE a.message = message.id) AS attachments" +
             " FROM folder" +
             " JOIN message ON folder = folder.id" +
             " WHERE folder.type = '" + EntityFolder.TYPE_INBOX + "'" +
             " AND (NOT ui_hide OR :debug)" +
-            " AND received IN (SELECT MAX(m.received) FROM message m WHERE m.folder = message.folder" +
-            " GROUP BY CASE WHEN m.thread IS NULL THEN m.id ELSE m.thread END)" +
-            " ORDER BY received DESC")
+            " GROUP BY thread" +
+            " ORDER BY message.received DESC")
         // in theory the message id and thread could be the same
     DataSource.Factory<Integer, TupleMessageEx> pagedUnifiedInbox(boolean debug);
 
     @Query("SELECT message.*, folder.name as folderName, folder.type as folderType" +
-            ", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread) AS count" +
-            ", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread AND NOT m.ui_seen) AS unseen" +
+            ", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread AND NOT m.ui_hide) AS count" +
+            ", SUM(CASE WHEN message.ui_seen THEN 0 ELSE 1 END) AS unseen" +
             ", (SELECT COUNT(a.id) FROM attachment a WHERE a.message = message.id) AS attachments" +
-            " FROM folder" +
-            " JOIN message ON folder = folder.id" +
+            " FROM message" +
+            " JOIN folder ON folder.id = message.folder" +
             " WHERE folder.id = :folder" +
             " AND (NOT ui_hide OR :debug)" +
-            " AND received IN (SELECT MAX(m.received) FROM message m WHERE m.folder = message.folder" +
-            " GROUP BY CASE WHEN m.thread IS NULL THEN m.id ELSE m.thread END)" +
-            " ORDER BY CASE WHEN folder.type IN " +
-            "('" + EntityFolder.TYPE_OUTBOX + "'" +
-            ", '" + EntityFolder.TYPE_DRAFTS + "'" +
-            ", '" + EntityFolder.TYPE_SENT + "')" +
-            " THEN sent ELSE received END DESC")
+            " GROUP BY thread" +
+            " ORDER BY received DESC, sent DESC")
     DataSource.Factory<Integer, TupleMessageEx> pagedFolder(long folder, boolean debug);
 
     @Query("SELECT message.*, folder.name as folderName, folder.type as folderType" +
-            ", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread) AS count" +
-            ", (SELECT COUNT(m.id) FROM message m WHERE m.account = message.account AND m.thread = message.thread AND NOT m.ui_seen) AS unseen" +
+            ", 1 AS count" +
+            ", CASE WHEN message.ui_seen THEN 0 ELSE 1 END AS unseen" +
             ", (SELECT COUNT(a.id) FROM attachment a WHERE a.message = message.id) AS attachments" +
             " FROM message" +
             " JOIN folder ON folder.id = message.folder" +
-            " JOIN message m1 ON m1.id = :msgid AND m1.account = message.account AND m1.thread = message.thread" +
-            " WHERE NOT message.ui_hide OR :debug" +
+            " WHERE message.account = (SELECT m1.account FROM message m1 WHERE m1.id = :msgid)" +
+            " AND message.thread = (SELECT m2.thread FROM message m2 WHERE m2.id = :msgid)" +
+            " AND (NOT ui_hide OR :debug)" +
             " ORDER BY received DESC")
     DataSource.Factory<Integer, TupleMessageEx> pagedThread(long msgid, boolean debug);
 

app/src/main/java/eu/faircode/email/EntityMessage.java

@@ -46,6 +46,7 @@ import static android.arch.persistence.room.ForeignKey.CASCADE;
                 @Index(value = {"thread"}),
                 @Index(value = {"received"}),
                 @Index(value = {"ui_seen"}),
+                @Index(value = {"ui_hide"})
         }
 )
 public class EntityMessage {

app/src/main/java/eu/faircode/email/FragmentMessages.java

@@ -52,6 +52,8 @@ public class FragmentMessages extends FragmentEx {
 
     private AdapterMessage adapter;
 
+    private static final int PAGE_SIZE = 100;
+
     @Override
     @Nullable
     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
@@ -101,7 +103,7 @@ public class FragmentMessages extends FragmentEx {
         if (thread < 0)
             if (folder < 0) {
                 setSubtitle(R.string.title_folder_unified);
-                messages = new LivePagedListBuilder<>(db.message().pagedUnifiedInbox(debug), 20).build();
+                messages = new LivePagedListBuilder<>(db.message().pagedUnifiedInbox(debug), PAGE_SIZE).build();
             } else {
                 db.folder().liveFolderEx(folder).observe(this, new Observer<TupleFolderEx>() {
                     @Override
@@ -109,11 +111,11 @@ public class FragmentMessages extends FragmentEx {
                         setSubtitle(folder == null ? null : Helper.localizeFolderName(getContext(), folder.name));
                     }
                 });
-                messages = new LivePagedListBuilder<>(db.message().pagedFolder(folder, debug), 20).build();
+                messages = new LivePagedListBuilder<>(db.message().pagedFolder(folder, debug), PAGE_SIZE).build();
             }
         else {
             setSubtitle(R.string.title_folder_thread);
-            messages = new LivePagedListBuilder<>(db.message().pagedThread(thread, debug), 20).build();
+            messages = new LivePagedListBuilder<>(db.message().pagedThread(thread, debug), PAGE_SIZE).build();
         }
 
         messages.observe(this, new Observer<PagedList<TupleMessageEx>>() {