175 lines
8.2 KiB
SQL
175 lines
8.2 KiB
SQL
-- AtlasOS - Calypso
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-- Performance Optimization: Database Indexes
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-- Version: 3.0
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-- Description: Adds indexes for frequently queried columns to improve query performance
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-- ============================================================================
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-- Authentication & Authorization Indexes
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-- ============================================================================
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-- Users table indexes
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-- Username is frequently queried during login
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CREATE INDEX IF NOT EXISTS idx_users_username ON users(username);
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-- Email lookups
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CREATE INDEX IF NOT EXISTS idx_users_email ON users(email);
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-- Active user lookups
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CREATE INDEX IF NOT EXISTS idx_users_is_active ON users(is_active) WHERE is_active = true;
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-- Sessions table indexes
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-- Token hash lookups are very frequent (every authenticated request)
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CREATE INDEX IF NOT EXISTS idx_sessions_token_hash ON sessions(token_hash);
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-- User session lookups
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CREATE INDEX IF NOT EXISTS idx_sessions_user_id ON sessions(user_id);
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-- Expired session cleanup (index on expires_at for efficient cleanup queries)
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CREATE INDEX IF NOT EXISTS idx_sessions_expires_at ON sessions(expires_at);
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-- User roles junction table
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-- Lookup roles for a user (frequent during permission checks)
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CREATE INDEX IF NOT EXISTS idx_user_roles_user_id ON user_roles(user_id);
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-- Lookup users with a role
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CREATE INDEX IF NOT EXISTS idx_user_roles_role_id ON user_roles(role_id);
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-- Role permissions junction table
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-- Lookup permissions for a role
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CREATE INDEX IF NOT EXISTS idx_role_permissions_role_id ON role_permissions(role_id);
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-- Lookup roles with a permission
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CREATE INDEX IF NOT EXISTS idx_role_permissions_permission_id ON role_permissions(permission_id);
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-- ============================================================================
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-- Audit & Monitoring Indexes
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-- ============================================================================
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-- Audit log indexes
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-- Time-based queries (most common audit log access pattern)
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CREATE INDEX IF NOT EXISTS idx_audit_log_created_at ON audit_log(created_at DESC);
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-- User activity queries
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CREATE INDEX IF NOT EXISTS idx_audit_log_user_id ON audit_log(user_id);
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-- Resource-based queries
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CREATE INDEX IF NOT EXISTS idx_audit_log_resource ON audit_log(resource_type, resource_id);
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-- Alerts table indexes
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-- Time-based ordering (default ordering in ListAlerts)
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CREATE INDEX IF NOT EXISTS idx_alerts_created_at ON alerts(created_at DESC);
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-- Severity filtering
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CREATE INDEX IF NOT EXISTS idx_alerts_severity ON alerts(severity);
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-- Source filtering
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CREATE INDEX IF NOT EXISTS idx_alerts_source ON alerts(source);
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-- Acknowledgment status
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CREATE INDEX IF NOT EXISTS idx_alerts_acknowledged ON alerts(is_acknowledged) WHERE is_acknowledged = false;
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-- Resource-based queries
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CREATE INDEX IF NOT EXISTS idx_alerts_resource ON alerts(resource_type, resource_id);
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-- Composite index for common filter combinations
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CREATE INDEX IF NOT EXISTS idx_alerts_severity_acknowledged ON alerts(severity, is_acknowledged, created_at DESC);
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-- ============================================================================
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-- Task Management Indexes
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-- ============================================================================
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-- Tasks table indexes
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-- Status filtering (very common in task queries)
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CREATE INDEX IF NOT EXISTS idx_tasks_status ON tasks(status);
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-- Created by user
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CREATE INDEX IF NOT EXISTS idx_tasks_created_by ON tasks(created_by);
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-- Time-based queries
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CREATE INDEX IF NOT EXISTS idx_tasks_created_at ON tasks(created_at DESC);
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-- Status + time composite (common query pattern)
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CREATE INDEX IF NOT EXISTS idx_tasks_status_created_at ON tasks(status, created_at DESC);
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-- Failed tasks lookup (for alerting)
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CREATE INDEX IF NOT EXISTS idx_tasks_failed_recent ON tasks(status, created_at DESC) WHERE status = 'failed';
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-- ============================================================================
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-- Storage Indexes
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-- ============================================================================
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-- Disk repositories indexes
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-- Active repository lookups
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CREATE INDEX IF NOT EXISTS idx_disk_repositories_is_active ON disk_repositories(is_active) WHERE is_active = true;
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-- Name lookups
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CREATE INDEX IF NOT EXISTS idx_disk_repositories_name ON disk_repositories(name);
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-- Volume group lookups
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CREATE INDEX IF NOT EXISTS idx_disk_repositories_vg ON disk_repositories(volume_group);
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-- Physical disks indexes
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-- Device path lookups (for sync operations)
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CREATE INDEX IF NOT EXISTS idx_physical_disks_device_path ON physical_disks(device_path);
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-- ============================================================================
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-- SCST Indexes
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-- ============================================================================
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-- SCST targets indexes
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-- IQN lookups (frequent during target operations)
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CREATE INDEX IF NOT EXISTS idx_scst_targets_iqn ON scst_targets(iqn);
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-- Active target lookups
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CREATE INDEX IF NOT EXISTS idx_scst_targets_is_active ON scst_targets(is_active) WHERE is_active = true;
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-- SCST LUNs indexes
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-- Target + LUN lookups (very frequent)
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CREATE INDEX IF NOT EXISTS idx_scst_luns_target_lun ON scst_luns(target_id, lun_number);
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-- Device path lookups
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CREATE INDEX IF NOT EXISTS idx_scst_luns_device_path ON scst_luns(device_path);
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-- SCST initiator groups indexes
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-- Target + group name lookups
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CREATE INDEX IF NOT EXISTS idx_scst_initiator_groups_target ON scst_initiator_groups(target_id);
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-- Group name lookups
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CREATE INDEX IF NOT EXISTS idx_scst_initiator_groups_name ON scst_initiator_groups(group_name);
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-- SCST initiators indexes
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-- Group + IQN lookups
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CREATE INDEX IF NOT EXISTS idx_scst_initiators_group_iqn ON scst_initiators(group_id, iqn);
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-- Active initiator lookups
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CREATE INDEX IF NOT EXISTS idx_scst_initiators_is_active ON scst_initiators(is_active) WHERE is_active = true;
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-- ============================================================================
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-- Tape Library Indexes
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-- ============================================================================
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-- Physical tape libraries indexes
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-- Serial number lookups (for discovery)
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CREATE INDEX IF NOT EXISTS idx_physical_tape_libraries_serial ON physical_tape_libraries(serial_number);
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-- Active library lookups
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CREATE INDEX IF NOT EXISTS idx_physical_tape_libraries_is_active ON physical_tape_libraries(is_active) WHERE is_active = true;
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-- Physical tape drives indexes
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-- Library + drive number lookups (very frequent)
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CREATE INDEX IF NOT EXISTS idx_physical_tape_drives_library_drive ON physical_tape_drives(library_id, drive_number);
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-- Status filtering
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CREATE INDEX IF NOT EXISTS idx_physical_tape_drives_status ON physical_tape_drives(status);
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-- Physical tape slots indexes
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-- Library + slot number lookups
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CREATE INDEX IF NOT EXISTS idx_physical_tape_slots_library_slot ON physical_tape_slots(library_id, slot_number);
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-- Barcode lookups
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CREATE INDEX IF NOT EXISTS idx_physical_tape_slots_barcode ON physical_tape_slots(barcode) WHERE barcode IS NOT NULL;
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-- Virtual tape libraries indexes
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-- MHVTL library ID lookups
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CREATE INDEX IF NOT EXISTS idx_virtual_tape_libraries_mhvtl_id ON virtual_tape_libraries(mhvtl_library_id);
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-- Active library lookups
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CREATE INDEX IF NOT EXISTS idx_virtual_tape_libraries_is_active ON virtual_tape_libraries(is_active) WHERE is_active = true;
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-- Virtual tape drives indexes
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-- Library + drive number lookups (very frequent)
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CREATE INDEX IF NOT EXISTS idx_virtual_tape_drives_library_drive ON virtual_tape_drives(library_id, drive_number);
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-- Status filtering
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CREATE INDEX IF NOT EXISTS idx_virtual_tape_drives_status ON virtual_tape_drives(status);
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-- Current tape lookups
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CREATE INDEX IF NOT EXISTS idx_virtual_tape_drives_current_tape ON virtual_tape_drives(current_tape_id) WHERE current_tape_id IS NOT NULL;
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-- Virtual tapes indexes
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-- Library + slot number lookups
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CREATE INDEX IF NOT EXISTS idx_virtual_tapes_library_slot ON virtual_tapes(library_id, slot_number);
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-- Barcode lookups
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CREATE INDEX IF NOT EXISTS idx_virtual_tapes_barcode ON virtual_tapes(barcode) WHERE barcode IS NOT NULL;
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-- Status filtering
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CREATE INDEX IF NOT EXISTS idx_virtual_tapes_status ON virtual_tapes(status);
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-- ============================================================================
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-- Statistics Update
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-- ============================================================================
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-- Update table statistics for query planner
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ANALYZE;
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