Merge pull request #20 from liquidata-inc/zachmu/pr-feedback

Fixed test error caused by deleting Alterable interface.

Author: zachmu

memory/database_test.go

@@ -19,8 +19,7 @@ func TestDatabase_AddTable(t *testing.T) {
 	tables := db.Tables()
 	require.Equal(0, len(tables))
 
-	var altDb sql.Alterable = db
-	err := altDb.Create("test_table", nil)
+	err := db.CreateTable(sql.NewEmptyContext(), "test_table", nil)
 	require.NoError(err)
 
 	tables = db.Tables()
@@ -29,6 +28,6 @@ func TestDatabase_AddTable(t *testing.T) {
 	require.True(ok)
 	require.NotNil(tt)
 
-	err = altDb.Create("test_table", nil)
+	err = db.CreateTable(sql.NewEmptyContext(), "test_table", nil)
 	require.Error(err)
 }