sqlite adapter - allow create_table with :without_row_id option

lib/sequel/adapters/shared/sqlite.rb

@@ -145,6 +145,11 @@ def supports_savepoints?
         sqlite_version >= 30608
       end
 
+      # SQLite 3.8.2+ supports the without rowid table constraint
+      def support_without_rowid?
+        sqlite_version >= 30802
+      end
+
       # Override the default setting for whether to use timezones in timestamps.
       # It is set to +false+ by default, as SQLite's date/time methods do not
       # support timezones in timestamps.
@@ -344,9 +349,17 @@ def connection_pragmas
         ps
       end
 
-      # Support creating STRICT tables via :strict option
+      # Support creating STRICT AND/OR WITHOUT ROWID tables via :strict and :without_rowid options
       def create_table_sql(name, generator, options)
-        "#{super}#{' STRICT' if options[:strict]}"
+        if options[:strict] && options[:without_rowid]
+          "#{super} STRICT, WITHOUT ROWID"
+        elsif options[:strict]
+          "#{super} STRICT"
+        elsif options[:without_rowid]
+          "#{super} WITHOUT ROWID"
+        else
+          super
+        end
       end
 
       # SQLite support creating temporary views.

lib/sequel/database/schema_methods.rb

@@ -191,6 +191,12 @@ def create_join_table?(hash, options=OPTS)
     #            The +any+ type is treated like a SQLite column in a non-strict table,
     #            allowing any type of data to be stored. This option is supported on
     #            SQLite 3.37.0+.
+    # :without_rowid :: Create a WITHOUT ROWID table. Every row in SQLite has a special
+    #                   'rowid' column, that uniquely identifies that row within the table.
+    #                   If this option is used, the 'rowid' column is omitted, which can
+    #                   sometimes provide some space and speed advantages. Note that you
+    #                   must then provide an explicit primary key when you create the table.
+    #                   This option is supported on SQLite 3.8.2+.
     #
     # See <tt>Schema::CreateTableGenerator</tt> and the {"Schema Modification" guide}[rdoc-ref:doc/schema_modification.rdoc].
     def create_table(name, options=OPTS, &block)

spec/adapters/sqlite_spec.rb

@@ -774,6 +774,61 @@
   end
 end if DB.sqlite_version >= 33700
 
+describe 'SQLite WITHOUT ROWID tables' do
+  before do
+    @db = DB
+  end
+  after do
+    @db.drop_table?(:without_rowid_table)
+  end
+
+  it "supports creation via :without_rowid option" do
+    @db = DB
+    @db.create_table(:without_rowid_table, :without_rowid=>true) do
+      int :id
+      primary_key [:id]
+    end
+
+    ds = @db[:without_rowid_table]
+    ds.insert(:id=>1)
+    ds.all.must_equal [{:id=>1}]
+    proc{ds.select(:rowid).all}.must_raise Sequel::DatabaseError
+  end
+end if DB.sqlite_version >= 30802
+
+describe 'SQLite STRICT and WITHOUT ROWID tables' do
+  before do
+    @db = DB
+  end
+  after do
+    @db.drop_table?(:strict_without_rowid_table)
+  end
+
+  it "supports creation via both :strict and :without_rowid option" do
+    @db = DB
+    @db.create_table(:strict_without_rowid_table, :strict=>true, :without_rowid=>true) do
+      int :id
+      int :a
+      integer :b
+      real :c
+      text :d
+      blob :e
+      any :f
+
+      primary_key [:id]
+    end
+    ds = @db[:strict_without_rowid_table]
+    ds.insert(:id=>1, :a=>2, :b=>3, :c=>1.2, :d=>'foo', :e=>Sequel.blob("\0\1\2\3"), :f=>'f')
+    proc{ds.select(:rowid).all}.must_raise Sequel::DatabaseError
+    ds.all.must_equal [{:id=>1, :a=>2, :b=>3, :c=>1.2, :d=>'foo', :e=>Sequel.blob("\0\1\2\3"), :f=>'f'}]
+    proc{ds.insert(:a=>'a')}.must_raise Sequel::ConstraintViolation
+    proc{ds.insert(:b=>'a')}.must_raise Sequel::ConstraintViolation
+    proc{ds.insert(:c=>'a')}.must_raise Sequel::ConstraintViolation
+    proc{ds.insert(:d=>Sequel.blob("\0\1\2\3"))}.must_raise Sequel::ConstraintViolation
+    proc{ds.insert(:e=>1)}.must_raise Sequel::ConstraintViolation
+  end
+end if DB.sqlite_version >= 33700
+
 describe 'SQLite Database' do
   it 'supports operations/functions with sqlite_json_ops' do
     Sequel.extension :sqlite_json_ops