wal_status, safe_wal_size, and written_lsn columns added in postgres13 (

#23)

* wal_status and safe_wal_size columns added in postgres13

* added written_lsn column and updated config for testing replica

data_source.go

@@ -40,6 +40,8 @@ type PgReplicationSlot struct {
 	CatalogXmin       string      `db:"catalog_xmin"`
 	RestartLsn        string      `db:"restart_lsn"`
 	ConfirmedFlushLsn string      `db:"confirmed_flush_lsn"`
+	WalStatus         string      `db:"wal_status"`
+	SafeWalSize       null.String `db:"safe_wal_size"`
 }
 
 type PgStatWalReceiver struct {
@@ -48,6 +50,7 @@ type PgStatWalReceiver struct {
 	ReceivedLsn        string `db:"received_lsn"`
 	ReceivedTli        string `db:"received_tli"`
 	ReceiveStartLsn    string `db:"receive_start_lsn"`
+	WrittenLsn         string `db:"written_lsn"`
 	ReceiveStartTli    string `db:"receive_start_tli"`
 	LastMsgSendTime    string `db:"last_msg_send_time"`
 	LastMsgReceiptTime string `db:"last_msg_receipt_time"`

examples/config.yml

@@ -4,4 +4,5 @@ database: postgres
 user: postgres
 sslmode: disable
 binary_parameters: yes
-port: 9432
+port: 7432
+max_hop: 3