Add index on created_at for EmailLog (#1898)

(cherry picked from commit ea46ca0af5f6912d17cf7c656f00257cdee191d1)

app/models.py

@@ -1947,6 +1947,7 @@ class Contact(Base, ModelMixin):
 
 class EmailLog(Base, ModelMixin):
     __tablename__ = "email_log"
+    __table_args__ = (Index("ix_email_log_created_at", "created_at"),)
 
     user_id = sa.Column(
         sa.ForeignKey(User.id, ondelete="cascade"), nullable=False, index=True

migrations/versions/2023_092818_ec7fdde8da9f_.py

@@ -0,0 +1,34 @@
+"""empty message
+
+Revision ID: ec7fdde8da9f
+Revises: 0a5701a4f5e4
+Create Date: 2023-09-28 18:09:48.016620
+
+"""
+import sqlalchemy_utils
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = "ec7fdde8da9f"
+down_revision = "0a5701a4f5e4"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.get_context().autocommit_block():
+        op.create_index(
+            "ix_email_log_created_at", "email_log", ["created_at"], unique=False
+        )
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.get_context().autocommit_block():
+        op.drop_index("ix_email_log_created_at", table_name="email_log")
+    # ### end Alembic commands ###