thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-29 19:12:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

delete

Browse Source
This commit is contained in:
Nikita Mikhailov 2021-01-13 18:15:32 +03:00
parent d58a8c98aa
commit ded35fe5b0
1 changed files with 0 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/Interpreters/TableJoin.cpp
View File

@ -230,16 +230,8 @@ void TableJoin::addJoinedColumn(const NameAndTypePair & joined_column)
void TableJoin::addJoinedColumnsAndCorrectNullability(ColumnsWithTypeAndName & columns) const void TableJoin::addJoinedColumnsAndCorrectNullability(ColumnsWithTypeAndName & columns) const
{ {
for (auto & col : columns) for (auto & col : columns)
{
/// Materialize column.
/// Column is not empty if it is constant, but after Join all constants will be materialized.
/// So, we need remove constants from header.
// if (col.column)
// col.column = nullptr;
if (leftBecomeNullable(col.type)) if (leftBecomeNullable(col.type))
col.type = makeNullable(col.type); col.type = makeNullable(col.type);
}
for (const auto & col : columns_added_by_join) for (const auto & col : columns_added_by_join)
{ {