Added new lowercase indexes for certificates cn, name and domains name

Co-authored-by: Javier Ramos <javier.ramos@booking.com>

lemur/migrations/versions/8323a5ea723a_.py

@@ -0,0 +1,50 @@
+"""Add lowercase index for certificate name and cn and also for domain name
+
+Revision ID: 8323a5ea723a
+Revises: b33c838cb669
+Create Date: 2020-01-10 10:51:44.776052
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '8323a5ea723a'
+down_revision = 'b33c838cb669'
+
+from alembic import op
+from sqlalchemy import text
+
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.create_index(
+        "ix_certificates_cn_lower",
+        "certificates",
+        [text("lower(cn)")],
+        unique=False,
+        postgresql_ops={"lower(cn)": "gin_trgm_ops"},
+        postgresql_using="gin",
+    )
+    op.create_index(
+        "ix_certificates_name_lower",
+        "certificates",
+        [text("lower(name)")],
+        unique=False,
+        postgresql_ops={"lower(name)": "gin_trgm_ops"},
+        postgresql_using="gin",
+    )
+    op.create_index(
+        "ix_domains_name_lower",
+        "domains",
+        [text("lower(name)")],
+        unique=False,
+        postgresql_ops={"lower(name)": "gin_trgm_ops"},
+        postgresql_using="gin",
+    )
+
+
+
+def downgrade():
+    op.drop_index("ix_certificates_cn_lower", table_name="certificates")
+    op.drop_index("ix_certificates_name_lower", table_name="certificates")
+    op.drop_index("ix_domains_name_lower", table_name="domains")

lemur/migrations/versions/ee827d1e1974_.py

@@ -45,6 +45,6 @@ def upgrade():
 
 
 def downgrade():
-    op.drop_index("ix_domains_name", table_name="domains")
+    op.drop_index("ix_domains_name_gin", table_name="domains")
     op.drop_index("ix_certificates_name", table_name="certificates")
     op.drop_index("ix_certificates_cn", table_name="certificates")