Add in additional indexes for DW. (#1357)

pay-api/migrations/versions/2024_01_05_eec11500a81e_.py

@@ -0,0 +1,30 @@
+"""Improves performance for DW summary view, from 500s -> 30s for a months worth of data.
+
+Revision ID: eec11500a81e
+Revises: 49eaec3210e0
+Create Date: 2024-01-05 11:28:12.564770
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = 'eec11500a81e'
+down_revision = '49eaec3210e0'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_index(op.f('ix_ejv_invoice_links_ejv_header_id'), 'ejv_invoice_links', ['ejv_header_id'], unique=False)
+    op.create_index(op.f('ix_ejv_invoice_links_invoice_id'), 'ejv_invoice_links', ['invoice_id'], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_ejv_invoice_links_invoice_id'), table_name='ejv_invoice_links')
+    op.drop_index(op.f('ix_ejv_invoice_links_ejv_header_id'), table_name='ejv_invoice_links')
+    # ### end Alembic commands ###

pay-api/src/pay_api/models/ejv_invoice_link.py

@@ -45,8 +45,8 @@ class EjvInvoiceLink(BaseModel):  # pylint: disable=too-few-public-methods
     }
 
     id = db.Column(db.Integer, primary_key=True, autoincrement=True)
-    invoice_id = db.Column(db.Integer, ForeignKey('invoices.id'), nullable=False)
-    ejv_header_id = db.Column(db.Integer, ForeignKey('ejv_headers.id'), nullable=False)
+    invoice_id = db.Column(db.Integer, ForeignKey('invoices.id'), nullable=False, index=True)
+    ejv_header_id = db.Column(db.Integer, ForeignKey('ejv_headers.id'), nullable=False, index=True)
     disbursement_status_code = db.Column(db.String(20), ForeignKey('disbursement_status_codes.code'), nullable=True)
     message = db.Column('message', db.String, nullable=True, index=False)
     sequence = db.Column(db.Integer, nullable=True)