note: this is a hidden cli argument.
raw details (from release v2.2.3):
{
"name": "accounts_db_squash_storages_method",
"properties": {
"long": "accounts-db-squash-storages-method",
"value_name": "METHOD",
"takes_value": "true",
"possible_values": "&[\"pack\", \"append\"]",
"help": "Squash multiple account storage files together using this method",
"hidden": "hidden_unless_forced()"
},
"isDeprecated": true
}