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Merge pull request #4363 from 4ertus2/ast

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Fix full/right join 'different number of columns'
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alexey-milovidov 2019-02-12 21:31:09 +03:00 committed by GitHub
commit e762f370a7
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3 changed files with 19 additions and 1 deletions
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3
dbms/src/Interpreters/Join.cpp
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@ -1207,7 +1207,8 @@ private:
for (size_t i = 0; i < right_sample_block.columns(); ++i)
{
const ColumnWithTypeAndName & src_column = right_sample_block.getByPosition(i);
result_sample_block.insert(src_column.cloneEmpty());
if (!result_sample_block.has(src_column.name))
result_sample_block.insert(src_column.cloneEmpty());
}
const auto & key_names_right = parent.key_names_right;

8
dbms/tests/queries/0_stateless/00819_full_join_wrong_columns_in_block.reference Normal file
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@ -0,0 +1,8 @@
1 x x
1 x x
1 x x
1 x x
1 x x
1 x x
1 x x
1 x x

9
dbms/tests/queries/0_stateless/00819_full_join_wrong_columns_in_block.sql Normal file
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@ -0,0 +1,9 @@
SELECT * FROM (SELECT 1 AS a, 'x' AS b) join (SELECT 1 as a, 'y' as b) using a;
SELECT * FROM (SELECT 1 AS a, 'x' AS b) left join (SELECT 1 as a, 'y' as b) using a;
SELECT * FROM (SELECT 1 AS a, 'x' AS b) full join (SELECT 1 as a, 'y' as b) using a;
SELECT * FROM (SELECT 1 AS a, 'x' AS b) right join (SELECT 1 as a, 'y' as b) using a;
SELECT * FROM (SELECT 1 AS a, 'x' AS b) any join (SELECT 1 as a, 'y' as b) using a;
SELECT * FROM (SELECT 1 AS a, 'x' AS b) any left join (SELECT 1 as a, 'y' as b) using a;
SELECT * FROM (SELECT 1 AS a, 'x' AS b) any full join (SELECT 1 as a, 'y' as b) using a;
SELECT * FROM (SELECT 1 AS a, 'x' AS b) any right join (SELECT 1 as a, 'y' as b) using a;