# HG changeset patch
# User Marcin Kuzminski <marcin@rhodecode.com>
# Date 2019-02-15 23:07:36
# Node ID 118155b6e0d3ee49b292def5e8b0b60c07786d75
# Parent  80e2c96afdf706c314cfe782619b285747b1b7be

database: dropped CheckConstraint for auto-increment field for mysql/mariadb compatability.

- https://mariadb.com/kb/en/library/constraint/#auto_increment
- causes installation error on later MariaDB/MySQL

diff --git a/rhodecode/lib/dbmigrate/schema/db_1_2_0.py b/rhodecode/lib/dbmigrate/schema/db_1_2_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_1_2_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_1_2_0.py
@@ -680,7 +680,7 @@ class Repository(Base, BaseModel):
 class Group(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (UniqueConstraint('group_name', 'group_parent_id'),
-                      CheckConstraint('group_id != group_parent_id'), {'extend_existing':True},)
+                      {'extend_existing':True},)
     __mapper_args__ = {'order_by':'group_name'}
 
     group_id = Column("group_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)
diff --git a/rhodecode/lib/dbmigrate/schema/db_1_3_0.py b/rhodecode/lib/dbmigrate/schema/db_1_3_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_1_3_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_1_3_0.py
@@ -699,7 +699,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine':'InnoDB',
          'mysql_charset': 'utf8'},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_1_4_0.py b/rhodecode/lib/dbmigrate/schema/db_1_4_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_1_4_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_1_4_0.py
@@ -513,7 +513,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8'},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_1_5_0.py b/rhodecode/lib/dbmigrate/schema/db_1_5_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_1_5_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_1_5_0.py
@@ -526,7 +526,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8'},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_1_5_2.py b/rhodecode/lib/dbmigrate/schema/db_1_5_2.py
--- a/rhodecode/lib/dbmigrate/schema/db_1_5_2.py
+++ b/rhodecode/lib/dbmigrate/schema/db_1_5_2.py
@@ -543,7 +543,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8'},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_1_6_0.py b/rhodecode/lib/dbmigrate/schema/db_1_6_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_1_6_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_1_6_0.py
@@ -626,7 +626,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8'},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_1_7_0.py b/rhodecode/lib/dbmigrate/schema/db_1_7_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_1_7_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_1_7_0.py
@@ -597,7 +597,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8'},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_1_8_0.py b/rhodecode/lib/dbmigrate/schema/db_1_8_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_1_8_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_1_8_0.py
@@ -599,7 +599,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_2_0_0.py b/rhodecode/lib/dbmigrate/schema/db_2_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_2_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_2_0_0.py
@@ -622,7 +622,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_2_0_1.py b/rhodecode/lib/dbmigrate/schema/db_2_0_1.py
--- a/rhodecode/lib/dbmigrate/schema/db_2_0_1.py
+++ b/rhodecode/lib/dbmigrate/schema/db_2_0_1.py
@@ -621,7 +621,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_2_0_2.py b/rhodecode/lib/dbmigrate/schema/db_2_0_2.py
--- a/rhodecode/lib/dbmigrate/schema/db_2_0_2.py
+++ b/rhodecode/lib/dbmigrate/schema/db_2_0_2.py
@@ -639,7 +639,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_2_1_0.py b/rhodecode/lib/dbmigrate/schema/db_2_1_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_2_1_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_2_1_0.py
@@ -656,7 +656,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_2_2_0.py b/rhodecode/lib/dbmigrate/schema/db_2_2_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_2_2_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_2_2_0.py
@@ -672,7 +672,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_2_2_3.py b/rhodecode/lib/dbmigrate/schema/db_2_2_3.py
--- a/rhodecode/lib/dbmigrate/schema/db_2_2_3.py
+++ b/rhodecode/lib/dbmigrate/schema/db_2_2_3.py
@@ -675,7 +675,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_2_3_0_0.py b/rhodecode/lib/dbmigrate/schema/db_2_3_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_2_3_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_2_3_0_0.py
@@ -679,7 +679,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_2_3_0_1.py b/rhodecode/lib/dbmigrate/schema/db_2_3_0_1.py
--- a/rhodecode/lib/dbmigrate/schema/db_2_3_0_1.py
+++ b/rhodecode/lib/dbmigrate/schema/db_2_3_0_1.py
@@ -679,7 +679,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_2_3_0_2.py b/rhodecode/lib/dbmigrate/schema/db_2_3_0_2.py
--- a/rhodecode/lib/dbmigrate/schema/db_2_3_0_2.py
+++ b/rhodecode/lib/dbmigrate/schema/db_2_3_0_2.py
@@ -707,7 +707,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_3_0_0_0.py b/rhodecode/lib/dbmigrate/schema/db_3_0_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_3_0_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_3_0_0_0.py
@@ -717,7 +717,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_3_0_0_1.py b/rhodecode/lib/dbmigrate/schema/db_3_0_0_1.py
--- a/rhodecode/lib/dbmigrate/schema/db_3_0_0_1.py
+++ b/rhodecode/lib/dbmigrate/schema/db_3_0_0_1.py
@@ -760,7 +760,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_3_1_0_0.py b/rhodecode/lib/dbmigrate/schema/db_3_1_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_3_1_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_3_1_0_0.py
@@ -758,7 +758,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_3_1_0_1.py b/rhodecode/lib/dbmigrate/schema/db_3_1_0_1.py
--- a/rhodecode/lib/dbmigrate/schema/db_3_1_0_1.py
+++ b/rhodecode/lib/dbmigrate/schema/db_3_1_0_1.py
@@ -759,7 +759,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_3_2_0_0.py b/rhodecode/lib/dbmigrate/schema/db_3_2_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_3_2_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_3_2_0_0.py
@@ -759,7 +759,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_3_3_0_0.py b/rhodecode/lib/dbmigrate/schema/db_3_3_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_3_3_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_3_3_0_0.py
@@ -765,7 +765,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_3_5_0_0.py b/rhodecode/lib/dbmigrate/schema/db_3_5_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_3_5_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_3_5_0_0.py
@@ -887,7 +887,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_3_7_0_0.py b/rhodecode/lib/dbmigrate/schema/db_3_7_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_3_7_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_3_7_0_0.py
@@ -912,7 +912,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_4_11_0_0.py b/rhodecode/lib/dbmigrate/schema/db_4_11_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_4_11_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_4_11_0_0.py
@@ -2295,7 +2295,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_4_13_0_0.py b/rhodecode/lib/dbmigrate/schema/db_4_13_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_4_13_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_4_13_0_0.py
@@ -2361,7 +2361,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_4_16_0_0.py b/rhodecode/lib/dbmigrate/schema/db_4_16_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_4_16_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_4_16_0_0.py
@@ -2436,7 +2436,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         base_table_args,
     )
     __mapper_args__ = {'order_by': 'group_name'}
diff --git a/rhodecode/lib/dbmigrate/schema/db_4_16_0_1.py b/rhodecode/lib/dbmigrate/schema/db_4_16_0_1.py
--- a/rhodecode/lib/dbmigrate/schema/db_4_16_0_1.py
+++ b/rhodecode/lib/dbmigrate/schema/db_4_16_0_1.py
@@ -2459,7 +2459,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         base_table_args,
     )
     __mapper_args__ = {'order_by': 'group_name'}
diff --git a/rhodecode/lib/dbmigrate/schema/db_4_16_0_2.py b/rhodecode/lib/dbmigrate/schema/db_4_16_0_2.py
--- a/rhodecode/lib/dbmigrate/schema/db_4_16_0_2.py
+++ b/rhodecode/lib/dbmigrate/schema/db_4_16_0_2.py
@@ -2459,7 +2459,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         base_table_args,
     )
     __mapper_args__ = {'order_by': 'group_name'}
diff --git a/rhodecode/lib/dbmigrate/schema/db_4_3_0_0.py b/rhodecode/lib/dbmigrate/schema/db_4_3_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_4_3_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_4_3_0_0.py
@@ -2007,7 +2007,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_4_4_0_0.py b/rhodecode/lib/dbmigrate/schema/db_4_4_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_4_4_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_4_4_0_0.py
@@ -1999,7 +1999,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_4_4_0_1.py b/rhodecode/lib/dbmigrate/schema/db_4_4_0_1.py
--- a/rhodecode/lib/dbmigrate/schema/db_4_4_0_1.py
+++ b/rhodecode/lib/dbmigrate/schema/db_4_4_0_1.py
@@ -1998,7 +1998,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_4_4_0_2.py b/rhodecode/lib/dbmigrate/schema/db_4_4_0_2.py
--- a/rhodecode/lib/dbmigrate/schema/db_4_4_0_2.py
+++ b/rhodecode/lib/dbmigrate/schema/db_4_4_0_2.py
@@ -2000,7 +2000,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_4_5_0_0.py b/rhodecode/lib/dbmigrate/schema/db_4_5_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_4_5_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_4_5_0_0.py
@@ -2000,7 +2000,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_4_7_0_0.py b/rhodecode/lib/dbmigrate/schema/db_4_7_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_4_7_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_4_7_0_0.py
@@ -2043,7 +2043,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_4_7_0_1.py b/rhodecode/lib/dbmigrate/schema/db_4_7_0_1.py
--- a/rhodecode/lib/dbmigrate/schema/db_4_7_0_1.py
+++ b/rhodecode/lib/dbmigrate/schema/db_4_7_0_1.py
@@ -2044,7 +2044,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/lib/dbmigrate/schema/db_4_9_0_0.py b/rhodecode/lib/dbmigrate/schema/db_4_9_0_0.py
--- a/rhodecode/lib/dbmigrate/schema/db_4_9_0_0.py
+++ b/rhodecode/lib/dbmigrate/schema/db_4_9_0_0.py
@@ -2231,7 +2231,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
          'mysql_charset': 'utf8', 'sqlite_autoincrement': True},
     )
diff --git a/rhodecode/model/db.py b/rhodecode/model/db.py
--- a/rhodecode/model/db.py
+++ b/rhodecode/model/db.py
@@ -2460,7 +2460,6 @@ class RepoGroup(Base, BaseModel):
     __tablename__ = 'groups'
     __table_args__ = (
         UniqueConstraint('group_name', 'group_parent_id'),
-        CheckConstraint('group_id != group_parent_id'),
         base_table_args,
     )
     __mapper_args__ = {'order_by': 'group_name'}
@@ -2481,8 +2480,7 @@ class RepoGroup(Base, BaseModel):
     users_group_to_perm = relationship('UserGroupRepoGroupToPerm', cascade='all')
     parent_group = relationship('RepoGroup', remote_side=group_id)
     user = relationship('User')
-    integrations = relationship('Integration',
-                                cascade="all, delete, delete-orphan")
+    integrations = relationship('Integration', cascade="all, delete, delete-orphan")
 
     def __init__(self, group_name='', parent_group=None):
         self.group_name = group_name
@@ -2492,6 +2490,16 @@ class RepoGroup(Base, BaseModel):
         return u"<%s('id:%s:%s')>" % (
             self.__class__.__name__, self.group_id, self.group_name)
 
+    @validates('group_parent_id')
+    def validate_group_parent_id(self, key, val):
+        """
+        Check cycle references for a parent group to self
+        """
+        if self.group_id and val:
+            assert val != self.group_id
+
+        return val
+
     @hybrid_property
     def description_safe(self):
         from rhodecode.lib import helpers as h