From 9abab40512e93d6c7f6eb15ba7bf23411f4cdaa7 Mon Sep 17 00:00:00 2001
From: Nikolai Kochetov <nik-kochetov@yandex-team.ru>
Date: Wed, 23 Oct 2019 06:45:43 +0300
Subject: [PATCH] Added more comments.

---
 dbms/src/Processors/Pipe.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dbms/src/Processors/Pipe.h b/dbms/src/Processors/Pipe.h
index 55b397c82d6..872f04c339b 100644
--- a/dbms/src/Processors/Pipe.h
+++ b/dbms/src/Processors/Pipe.h
@@ -11,7 +11,11 @@ using Pipes = std::vector<Pipe>;
 class Pipe
 {
 public:
+    /// Create from source. It must have no input ports and single output.
     explicit Pipe(ProcessorPtr source);
+    /// Connect several pipes together with specified transform.
+    /// Transform must have the number of inputs equals to the number of pipes. And single output.
+    /// Will connect pipes outputs with transform inputs automatically.
     Pipe(Pipes && pipes, ProcessorPtr transform);
 
     Pipe(const Pipe & other) = delete;