sqlite: optimize storage of metadata

This makes commit 3c7a3160
(storage: speed up reads by indexing 'obj' primarily by 'oid')
effective for SQLite.

The fake changes in test data are because we don't force upgrade
for this optimization.

neo/storage/database/sqlite.py

@@ -179,7 +179,8 @@ class SQLiteDatabaseManager(DatabaseManager):
                  description BLOB NOT NULL,
                  ext BLOB NOT NULL,
                  ttid INTEGER NOT NULL,
-                 PRIMARY KEY (partition, tid))
+                 PRIMARY KEY (partition, tid)
+            ) WITHOUT ROWID
             """
 
         # The table "obj" stores committed object metadata.
@@ -189,7 +190,8 @@ class SQLiteDatabaseManager(DatabaseManager):
                  tid INTEGER NOT NULL,
                  data_id INTEGER,
                  value_tid INTEGER,
-                 PRIMARY KEY (partition, oid, tid))
+                 PRIMARY KEY (partition, oid, tid)
+            ) WITHOUT ROWID
             """
         index_dict['obj'] = (
             "CREATE INDEX %s ON %s(partition, tid, oid)",

neo/tests/threaded/testStorageUpgrade-SQLite/s1.sql

@@ -48,7 +48,9 @@ CREATE TABLE trans (
                  description BLOB NOT NULL,
                  ext BLOB NOT NULL,
                  ttid INTEGER NOT NULL,
-                 PRIMARY KEY (partition, tid));
+                 PRIMARY KEY (partition, tid)
+            ) WITHOUT ROWID
+            ;
 INSERT INTO "trans" VALUES(1,231616946283203125,0,X'0000000000000000',X'',X'',X'',231616946283203125);
 CREATE TABLE ttrans (
                  partition INTEGER NOT NULL,

neo/tests/threaded/testStorageUpgrade-SQLite/s2.sql

@@ -48,7 +48,9 @@ CREATE TABLE trans (
                  description BLOB NOT NULL,
                  ext BLOB NOT NULL,
                  ttid INTEGER NOT NULL,
-                 PRIMARY KEY (partition, tid));
+                 PRIMARY KEY (partition, tid)
+            ) WITHOUT ROWID
+            ;
 CREATE TABLE ttrans (
                  partition INTEGER NOT NULL,
                  tid INTEGER NOT NULL,

neo/tests/threaded/testStorageUpgrade-SQLite/s3.sql

@@ -46,7 +46,9 @@ CREATE TABLE trans (
                  description BLOB NOT NULL,
                  ext BLOB NOT NULL,
                  ttid INTEGER NOT NULL,
-                 PRIMARY KEY (partition, tid));
+                 PRIMARY KEY (partition, tid)
+            ) WITHOUT ROWID
+            ;
 CREATE TABLE ttrans (
                  partition INTEGER NOT NULL,
                  tid INTEGER NOT NULL,