Clean up Alembic migrations

- Removed outdated and redundant Alembic migration files to streamline the migration directory. This improves maintainability and eliminates duplicate or unused scripts.
2025-11-27 09:12:30 +01:00
parent 4a06b96b2e
commit 2bbe925cef
26 changed files with 883 additions and 971 deletions
--- a/backend/app/alembic/versions/0002_add_performance_indexes.py
+++ b/backend/app/alembic/versions/0002_add_performance_indexes.py
@@ -0,0 +1,122 @@
+"""Add performance indexes
+
+Revision ID: 0002
+Revises: 0001
+Create Date: 2025-11-27
+
+Performance indexes that Alembic cannot auto-detect:
+- Functional indexes (LOWER expressions)
+- Partial indexes (WHERE clauses)
+
+These indexes use the ix_perf_ prefix and are excluded from autogenerate
+via the include_object() function in env.py.
+"""
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "0002"
+down_revision: str | None = "0001"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    # ==========================================================================
+    # USERS TABLE - Performance indexes for authentication
+    # ==========================================================================
+
+    # Case-insensitive email lookup for login/registration
+    # Query: SELECT * FROM users WHERE LOWER(email) = LOWER(:email) AND deleted_at IS NULL
+    # Impact: High - every login, registration check, password reset
+    op.create_index(
+        "ix_perf_users_email_lower",
+        "users",
+        [sa.text("LOWER(email)")],
+        unique=False,
+        postgresql_where=sa.text("deleted_at IS NULL"),
+    )
+
+    # Active users lookup (non-soft-deleted)
+    # Query: SELECT * FROM users WHERE deleted_at IS NULL AND ...
+    # Impact: Medium - user listings, admin queries
+    op.create_index(
+        "ix_perf_users_active",
+        "users",
+        ["is_active"],
+        unique=False,
+        postgresql_where=sa.text("deleted_at IS NULL"),
+    )
+
+    # ==========================================================================
+    # ORGANIZATIONS TABLE - Performance indexes for multi-tenant lookups
+    # ==========================================================================
+
+    # Case-insensitive slug lookup for URL routing
+    # Query: SELECT * FROM organizations WHERE LOWER(slug) = LOWER(:slug) AND is_active = true
+    # Impact: Medium - every organization page load
+    op.create_index(
+        "ix_perf_organizations_slug_lower",
+        "organizations",
+        [sa.text("LOWER(slug)")],
+        unique=False,
+        postgresql_where=sa.text("is_active = true"),
+    )
+
+    # ==========================================================================
+    # USER SESSIONS TABLE - Performance indexes for session management
+    # ==========================================================================
+
+    # Expired session cleanup
+    # Query: SELECT * FROM user_sessions WHERE expires_at < NOW() AND is_active = true
+    # Impact: Medium - background cleanup jobs
+    op.create_index(
+        "ix_perf_user_sessions_expires",
+        "user_sessions",
+        ["expires_at"],
+        unique=False,
+        postgresql_where=sa.text("is_active = true"),
+    )
+
+    # ==========================================================================
+    # OAUTH PROVIDER TOKENS - Performance indexes for token management
+    # ==========================================================================
+
+    # Expired refresh token cleanup
+    # Query: SELECT * FROM oauth_provider_refresh_tokens WHERE expires_at < NOW() AND revoked = false
+    # Impact: Medium - OAuth token cleanup, validation
+    op.create_index(
+        "ix_perf_oauth_refresh_tokens_expires",
+        "oauth_provider_refresh_tokens",
+        ["expires_at"],
+        unique=False,
+        postgresql_where=sa.text("revoked = false"),
+    )
+
+    # ==========================================================================
+    # OAUTH AUTHORIZATION CODES - Performance indexes for auth flow
+    # ==========================================================================
+
+    # Expired authorization code cleanup
+    # Query: DELETE FROM oauth_authorization_codes WHERE expires_at < NOW() AND used = false
+    # Impact: Low-Medium - OAuth cleanup jobs
+    op.create_index(
+        "ix_perf_oauth_auth_codes_expires",
+        "oauth_authorization_codes",
+        ["expires_at"],
+        unique=False,
+        postgresql_where=sa.text("used = false"),
+    )
+
+
+def downgrade() -> None:
+    # Drop indexes in reverse order
+    op.drop_index("ix_perf_oauth_auth_codes_expires", table_name="oauth_authorization_codes")
+    op.drop_index("ix_perf_oauth_refresh_tokens_expires", table_name="oauth_provider_refresh_tokens")
+    op.drop_index("ix_perf_user_sessions_expires", table_name="user_sessions")
+    op.drop_index("ix_perf_organizations_slug_lower", table_name="organizations")
+    op.drop_index("ix_perf_users_active", table_name="users")
+    op.drop_index("ix_perf_users_email_lower", table_name="users")