From f8f734d3dc80ca527e499c9f20e2c5fef179014c Mon Sep 17 00:00:00 2001 From: alesapin Date: Fri, 2 Jul 2021 12:40:13 +0300 Subject: [PATCH] Better comment --- src/Storages/MergeTree/ReplicatedMergeTreeQueue.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/Storages/MergeTree/ReplicatedMergeTreeQueue.h b/src/Storages/MergeTree/ReplicatedMergeTreeQueue.h index 0a2c092dfdb..820d2794a31 100644 --- a/src/Storages/MergeTree/ReplicatedMergeTreeQueue.h +++ b/src/Storages/MergeTree/ReplicatedMergeTreeQueue.h @@ -373,7 +373,9 @@ public: /// Checks that part is already in virtual parts bool isVirtualPart(const MergeTreeData::DataPartPtr & data_part) const; - /// Check that part produced by some entry in queue and get source parts for it + /// Check that part produced by some entry in queue and get source parts for it. + /// If there are several entries return largest source_parts set. This rarely possible + /// for example after replica clone. bool checkPartInQueueAndGetSourceParts(const String & part_name, Strings & source_parts) const; /// Check that part isn't in currently generating parts and isn't covered by them and add it to future_parts.