added seq scan tables analyze with replica info included

sql/seq_scan_tables_with_replica.sql

@@ -0,0 +1,20 @@
+
+SELECT
+	local.schemaname||'.'||local.relname,
+	local.n_live_tup,
+	local.seq_scan AS local_seq_scan,
+	remote.seq_scan AS remote_seq_scan,
+	local.seq_tup_read AS local_seq_tup_read,
+	remote.seq_tup_read AS remote_seq_tup_read,
+	(coalesce(local.n_tup_ins,0)+coalesce(local.n_tup_upd,0)+coalesce(local.n_tup_del,0)) AS write_activity,
+	(SELECT count(*) FROM pg_index WHERE pg_index.indrelid=relid) AS index_count
+FROM pg_stat_all_tables AS local
+join replica_fdw.pg_stat_all_tables AS remote USING (relid)
+WHERE
+	(local.seq_scan+remote.seq_scan)>0
+	AND (local.seq_tup_read+remote.seq_tup_read)>100000
+	AND local.schemaname<>'pg_catalog'
+ORDER BY
+	local.seq_tup_read+remote.seq_tup_read DESC
+LIMIT 20;
+