[FIX] Fix issue with Node.hyperdata index

alembic/README

@@ -14,7 +14,7 @@ TELL ALEMBIC TO NOT START FROM SCRATCH
     # "upgrade head" command. If you don't want to do this, you can of course
     # drop your database and really start from scratch.
 
-    alembic stamp 601e9d9baa4c
+    alembic stamp bedce47c9e34
 
 
 UPGRADE TO LATEST DATABASE VERSION

alembic/versions/bedce47c9e34_fix_issue_with_node_hyperdata_index.py

+"""Fix issue with Node.hyperdata index
+
+Revision ID: bedce47c9e34
+Revises: 08230100f262
+Create Date: 2017-07-10 11:30:59.168190
+
+"""
+from alembic import op
+import sqlalchemy as sa
+import gargantext
+
+
+# revision identifiers, used by Alembic.
+revision = 'bedce47c9e34'
+down_revision = '08230100f262'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.drop_index('nodes_hyperdata_idx', table_name='nodes')
+    op.create_index('nodes_hyperdata_idx', 'nodes', ['hyperdata'], unique=False, postgresql_using="gin")
+
+
+def downgrade():
+    # We won't unfix the bug when downgrading...
+    pass

gargantext/models/nodes.py

@@ -55,7 +55,7 @@ class Node(Base):
     __tablename__ = 'nodes'
     __table_args__ = (
             Index('nodes_user_id_typename_parent_id_idx', 'user_id', 'typename', 'parent_id'),
-            Index('nodes_hyperdata_idx', 'hyperdata'))
+            Index('nodes_hyperdata_idx', 'hyperdata', postgresql_using='gin'))
 
     id = Column(Integer, primary_key=True)
     typename = Column(NodeType, index=True)