thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-22 15:42:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

Check stack size

Browse Source
This commit is contained in:
alesapin 2020-09-16 16:24:07 +03:00
parent e20c54998c
commit cbe85327e2
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/Storages/MergeTree/MergeTreeBlockReadUtils.cpp
View File

@ -1,5 +1,6 @@
#include <Storages/MergeTree/MergeTreeBlockReadUtils.h>
#include <Storages/MergeTree/MergeTreeData.h>
#include <Common/checkStackSize.h>
#include <Common/typeid_cast.h>
#include <Columns/ColumnConst.h>
#include <unordered_set>
@ -28,6 +29,10 @@ bool injectRequiredColumnsRecursively(
NameSet & required_columns,
NameSet & injected_columns)
{
/// This is needed to prevent stack overflow in case of cyclic defaults or
/// huge AST which for some reason was not validated on parsing/interpreter
/// stages.
checkStackSize();
String column_name_in_part = column_name;
if (alter_conversions.isColumnRenamed(column_name_in_part))
column_name_in_part = alter_conversions.getColumnOldName(column_name_in_part);