diff --git a/.idea/runConfigurations/All_Tests.xml b/.idea/runConfigurations/All_Tests.xml
index 767c993..bfeaba5 100644
--- a/.idea/runConfigurations/All_Tests.xml
+++ b/.idea/runConfigurations/All_Tests.xml
@@ -1,7 +1,6 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="All Tests" type="JUnit" factoryName="JUnit" show_console_on_std_err="true">
     <output_file path="$PROJECT_DIR$/var/log/test/out.log" is_save="true" />
-    <log_file alias="test.log" path="$PROJECT_DIR$/var/log/test" />
     <module name="dcproject.test" />
     <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="true" />
     <option name="ALTERNATIVE_JRE_PATH" value="11" />
diff --git a/.idea/runConfigurations/RunCucumberTest.xml b/.idea/runConfigurations/RunCucumberTest.xml
index e9400b4..3904391 100644
--- a/.idea/runConfigurations/RunCucumberTest.xml
+++ b/.idea/runConfigurations/RunCucumberTest.xml
@@ -1,7 +1,6 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="RunCucumberTest" type="JUnit" factoryName="JUnit" nameIsGenerated="true">
     <output_file path="$PROJECT_DIR$/var/log/test/cucumber.out.log" is_save="true" />
-    <log_file alias="cucumber.log" path="$PROJECT_DIR$/var/log/test" />
     <module name="dcproject.test" />
     <option name="PACKAGE_NAME" value="" />
     <option name="MAIN_CLASS_NAME" value="RunCucumberTest" />
diff --git a/src/main/resources/sql/migrations/0000-init_schema.up.sql b/src/main/resources/sql/migrations/0000-init_schema.up.sql
index 620dee0..b082a72 100644
--- a/src/main/resources/sql/migrations/0000-init_schema.up.sql
+++ b/src/main/resources/sql/migrations/0000-init_schema.up.sql
@@ -99,10 +99,10 @@ create table article
     created_by_id  uuid                                     not null references citizen (id),
     version_id     uuid          default uuid_generate_v4() not null,
     version_number int                                      not null,
-    title          text                                     not null,
+    title          text                                     not null check ( length(title) < 128 ),
     annonymous     boolean       default false              not null,
     content        text                                     not null check ( content != '' ),
-    description    text,
+    description    text                                     null check ( description != '' ),
     tags           varchar(32)[] default '{}'               not null,
     unique (version_id, version_number)
 );
@@ -120,7 +120,7 @@ create table constitution
     created_by_id  uuid                                   not null references citizen (id),
     version_id     uuid        default uuid_generate_v4() not null,
     version_number int                                    not null,
-    title          text                                   not null,
+    title          text                                   not null check ( length(title) < 128 ),
     annonymous     boolean     default false              not null
 );
 
@@ -136,7 +136,7 @@ create table title
     created_at      timestamptz default now()              not null,
     created_by_id   uuid                                   not null references citizen (id),
     name            text                                   not null check ( name != '' ),
-    rank            int                                    not null,
+    rank            int                                    not null check ( rank >= 0 ),
     constitution_id uuid                                   not null references constitution (id)
 );
 
@@ -145,7 +145,7 @@ create table article_in_title
     id              uuid        default uuid_generate_v4() not null primary key,
     created_at      timestamptz default now()              not null,
     created_by_id   uuid                                   not null references citizen (id),
-    rank            int                                    not null,
+    rank            int                                    not null check ( rank >= 0 ),
     title_id        uuid                                   not null references title (id),
     article_id      uuid                                   not null references article (id),
     constitution_id uuid                                   not null references constitution (id)
@@ -175,7 +175,7 @@ create table article_relations
     target_id     uuid references article check ( source_id != target_id ),
     created_at    timestamptz default now(),
     created_by_id uuid not null references citizen (id),
-    comment       text null,
+    comment       text null check ( comment != '' ),
     primary key (source_id, target_id)
 );
 
@@ -229,7 +229,7 @@ create table follow_citizen
 create table comment
 (
     updated_at timestamptz default now() not null check ( updated_at >= created_at ),
-    "content"  text                      not null check ( content != '' ),
+    "content"  text                      not null check ( content != '' and length(content) < 4096),
     parent_id  uuid                      null references comment (id),
     foreign key (citizen_id) references citizen (id),
     primary key (id)