Sindbad~EG File Manager

-- Add officer_type field to attendance_records table
ALTER TABLE attendance_records 
ADD COLUMN officer_type VARCHAR(50) NULL 
AFTER assembly_id;

-- Add index for officer_type for better query performance
ALTER TABLE attendance_records 
ADD INDEX idx_officer_type (officer_type);

-- Update existing records to have NULL officer_type (will be handled by application logic)
-- No need to set default values as this is a new optional field