Service keyvalue.database detail

Computed Definition =>

array:3 [
  "class" => "Drupal\Core\KeyValueStore\KeyValueDatabaseFactory"
  "arguments" => {#1571
    +"type": "collection"
    +"value": array:2 [
      0 => {#1569
        +"type": "service"
        +"id": "serialization.phpserialize"
        +"invalidBehavior": 1
      }
      1 => {#1568
        +"type": "service"
        +"id": "database"
        +"invalidBehavior": 1
      }
    ]
  }
  "arguments_count" => 2
]

Instance =>

Drupal\Core\KeyValueStore\KeyValueDatabaseFactory {#209
  #serializer: Drupal\Component\Serialization\PhpSerialize {#71}
  #connection: Drupal\mysql\Driver\Database\mysql\Connection {#31
    #target: "default"
    #key: "default"
    #logger: null
    #transactionLayers: []
    #driverClasses: []
    #statementWrapperClass: "Drupal\Core\Database\StatementWrapperIterator"
    #transactionalDDLSupport: false
    #connection: PDO {#30
      inTransaction: false
      attributes: {
        CASE: NATURAL
        ERRMODE: EXCEPTION
        AUTOCOMMIT: 1
        PERSISTENT: false
        DRIVER_NAME: "mysql"
        SERVER_INFO: "Uptime: 9298573  Threads: 10  Questions: 1659895826  Slow queries: 30177  Opens: 9465  Open tables: 535  Queries per second avg: 178.510"
        ORACLE_NULLS: NATURAL
        CLIENT_VERSION: "mysqlnd 8.3.17"
        SERVER_VERSION: "11.4.5-MariaDB-log"
        STATEMENT_CLASS: array:1 [
          0 => "PDOStatement"
        ]
        EMULATE_PREPARES: 1
        CONNECTION_STATUS: "mariadb via TCP/IP"
        STRINGIFY_FETCHES: true
        DEFAULT_FETCH_MODE: BOTH
      }
    }
    #connectionOptions: array:11 [
      "database" => "drupal"
      "username" => "drupal"
      "password" => "zI6gwHhfooHcsrIdSC9oNEwzkF9PyiL3"
      "prefix" => ""
      "host" => "mariadb"
      "port" => "3306"
      "namespace" => "Drupal\mysql\Driver\Database\mysql"
      "driver" => "mysql"
      "init_commands" => array:2 [
        "isolation" => "SET SESSION tx_isolation='READ-COMMITTED'"
        "sql_mode" => "SET sql_mode = 'ANSI,TRADITIONAL'"
      ]
      "autoload" => "core/modules/mysql/src/Driver/Database/mysql/"
      "pdo" => array:6 [
        3 => 2
        1000 => true
        1005 => true
        20 => true
        1013 => false
        17 => true
      ]
    ]
    #schema: null
    #prefix: ""
    #tablePlaceholderReplacements: array:2 [
      0 => """
      1 => """
    ]
    #prefixes: []
    #prefixSearch: []
    #prefixReplace: []
    #unprefixedTablesMap: []
    #escapedTables: array:15 [
      "cache_container" => "cache_container"
      "cache_config" => "cache_config"
      "cache_default" => "cache_default"
      "cache_discovery" => "cache_discovery"
      "cache_bootstrap" => "cache_bootstrap"
      "users" => "users"
      "users_field_data" => "users_field_data"
      "cache_entity" => "cache_entity"
      "config" => "config"
      "user__field_fi_user" => "user__field_fi_user"
      "cache_access_policy" => "cache_access_policy"
      "cache_data" => "cache_data"
      "path_alias" => "path_alias"
      "router" => "router"
      "cache_dynamic_page_cache" => "cache_dynamic_page_cache"
    ]
    #escapedFields: array:31 [
      "" => ""
      "uid" => ""uid""
      "type" => ""type""
      "message" => ""message""
      "variables" => ""variables""
      "severity" => ""severity""
      "link" => ""link""
      "location" => ""location""
      "referer" => ""referer""
      "hostname" => ""hostname""
      "timestamp" => ""timestamp""
      "users_field_data.name" => ""users_field_data"."name""
      "users_field_data.status" => ""users_field_data"."status""
      "users_field_data.default_langcode" => ""users_field_data"."default_langcode""
      "base_table.uid" => ""base_table"."uid""
      "collection" => ""collection""
      "name" => ""name""
      "config.name" => ""config"."name""
      "user__field_fi_user.field_fi_user_value" => ""user__field_fi_user"."field_fi_user_value""
      "base_table.status" => ""base_table"."status""
      "base_table.alias" => ""base_table"."alias""
      "base_table.langcode" => ""base_table"."langcode""
      "base_table.id" => ""base_table"."id""
      "base_table.path" => ""base_table"."path""
      "cid" => ""cid""
      "expire" => ""expire""
      "created" => ""created""
      "tags" => ""tags""
      "checksum" => ""checksum""
      "data" => ""data""
      "serialized" => ""serialized""
    ]
    #escapedAliases: array:11 [
      "uid" => ""uid""
      "base_table_uid" => ""base_table_uid""
      "base_table" => ""base_table""
      "users_field_data" => ""users_field_data""
      "name" => ""name""
      "config" => ""config""
      "user__field_fi_user" => ""user__field_fi_user""
      "id" => ""id""
      "path" => ""path""
      "alias" => ""alias""
      "langcode" => ""langcode""
    ]
    #rootTransactionEndCallbacks: []
    #identifierQuotes: array:2 [
      0 => """
      1 => """
    ]
    -enabledEvents: []
    #transactionManager: ? Drupal\Core\Database\Transaction\TransactionManagerInterface|false
    #needsCleanup: false
    -serverVersion: null
  }
}