fix: removed unused import statement and changed description in preparedtransaction section

Author: casperr0

mamonsu/plugins/pgsql/prepared_transaction.py

@@ -1,7 +1,6 @@
 # -*- coding: utf-8 -*-
 
 from mamonsu.plugins.pgsql.plugin import PgsqlPlugin as Plugin
-from distutils.version import LooseVersion
 from .pool import Pooler
 
 
@@ -10,7 +9,7 @@ class PreparedTransaction(Plugin):
     key_count = {
         'state': 'count_prepared',
         'key': 'pgsql.prepared.count',
-        'name': 'PostgreSQL: numder of prepared transactions',
+        'name': 'PostgreSQL: number of prepared transactions',
         'color': '00BB00',
         'yaxisside': 0,
     }

packaging/conf/example.conf

@@ -178,11 +178,11 @@ enabled = False
 relations=pg_catalog.pg_class,pg_catalog.pg_user
 interval = 500
 
-# Get age in second and number of transactions that are currently prepared for two-phase commit.
+# Get age (in seconds) of the oldest running prepared transaction and number of all prepared transactions for two-phase commit.
 # https://www.postgresql.org/docs/current/sql-prepare-transaction.html
 # https://www.postgresql.org/docs/12/view-pg-prepared-xacts.html
-# max_prepared_transaction_time - age of prepared pransaction in second,  after which the trigger run.
-# (возраст подготовленных транзакций, после которого срабатывает триггер.) ????
+# max_prepared_transaction_time - age of prepared transaction in seconds.
+# If pgsql.prepared.oldest exceeds max_prepared_transaction_time the trigger fires.
 [preparedtransaction]
 max_prepared_transaction_time = 60
 interval = 60