from django.db import migrations class Migration(migrations.Migration): dependencies = [ ("zerver", "0098_index_has_alert_word_user_messages"), ] operations = [ migrations.RunSQL( """ CREATE INDEX zerver_usermessage_wildcard_mentioned_message_id ON zerver_usermessage (user_profile_id, message_id) WHERE (flags & 8) != 0 OR (flags & 16) != 0; """, reverse_sql="DROP INDEX zerver_usermessage_wildcard_mentioned_message_id;", ), ]