thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-09-30 05:30:51 +00:00
Code Issues Packages Projects Releases Wiki Activity

Comment

Browse Source
This commit is contained in:
alesapin 2020-04-03 14:23:14 +03:00
parent a027b33195
commit 450f9a5175
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
dbms/Storages/MergeTree/MergeTreeData.cpp
View File

@ -3608,6 +3608,9 @@ MergeTreeData::AlterConversions MergeTreeData::getAlterConversionsForPart(const
AlterConversions result{};
for (const auto & command : commands)
/// Currently we need explicit conversions only for RENAME alter
/// all other conversions can be deduced from diff between part columns
/// and columns in storage.
if (command.type == MutationCommand::Type::RENAME_COLUMN)
result.rename_map[command.rename_to] = command.column_name;