From 7dfc0a4c6c3608a5772c60f9641e023dd252a4a4 Mon Sep 17 00:00:00 2001 From: Alexey Milovidov Date: Sun, 20 May 2018 08:28:48 +0300 Subject: [PATCH] Processors: experimental [#CLICKHOUSE-2948] --- dbms/src/Processors/Processor.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/dbms/src/Processors/Processor.h b/dbms/src/Processors/Processor.h index 5702c316671..921b2686741 100644 --- a/dbms/src/Processors/Processor.h +++ b/dbms/src/Processors/Processor.h @@ -61,6 +61,9 @@ * Concat. Has many inputs but only one output. Pulls all data from first input, then all data from second input, etc. and pushes it to output. * * Ordered merge. Has many inputs but only one output. Pulls data from selected input in specific order, merges and pushes it to output. + * + * Fork. Has one input and many outputs. Pulls data from input and copies it to all outputs. + * Used to process multiple queries with common source of data. */ namespace DB