add some indexes to speed up search by query

app/models.py

@@ -1047,10 +1047,10 @@ class Alias(db.Model, ModelMixin):
     user_id = db.Column(
         db.ForeignKey(User.id, ondelete="cascade"), nullable=False, index=True
     )
-    email = db.Column(db.String(128), unique=True, nullable=False)
+    email = db.Column(db.String(128), unique=True, nullable=False, index=True)
 
     # the name to use when user replies/sends from alias
-    name = db.Column(db.String(128), nullable=True, default=None)
+    name = db.Column(db.String(128), nullable=True, default=None, index=True)
 
     enabled = db.Column(db.Boolean(), default=True, nullable=False)
 
@@ -1070,7 +1070,7 @@ class Alias(db.Model, ModelMixin):
         db.ForeignKey("directory.id", ondelete="cascade"), nullable=True
     )
 
-    note = db.Column(db.Text, default=None, nullable=True)
+    note = db.Column(db.Text, default=None, nullable=True, index=True)
 
     # an alias can be owned by another mailbox
     mailbox_id = db.Column(

migrations/versions/2021_080319_62727e7cde50_.py

@@ -0,0 +1,35 @@
+"""empty message
+
+Revision ID: 62727e7cde50
+Revises: ffa75d04e6ef
+Create Date: 2021-08-03 19:12:31.500066
+
+"""
+import sqlalchemy_utils
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '62727e7cde50'
+down_revision = 'ffa75d04e6ef'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_index(op.f('ix_alias_email'), 'alias', ['email'], unique=True)
+    op.create_index(op.f('ix_alias_name'), 'alias', ['name'], unique=False)
+    op.create_index(op.f('ix_alias_note'), 'alias', ['note'], unique=False)
+    op.drop_constraint('gen_email_email_key', 'alias', type_='unique')
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_unique_constraint('gen_email_email_key', 'alias', ['email'])
+    op.drop_index(op.f('ix_alias_note'), table_name='alias')
+    op.drop_index(op.f('ix_alias_name'), table_name='alias')
+    op.drop_index(op.f('ix_alias_email'), table_name='alias')
+    # ### end Alembic commands ###