mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-30 11:32:03 +00:00
64 lines
1.4 KiB
SQL
64 lines
1.4 KiB
SQL
DROP TABLE IF EXISTS tableCommon;
|
|
DROP TABLE IF EXISTS tableTrees;
|
|
DROP TABLE IF EXISTS tableFlowers;
|
|
|
|
CREATE TABLE tableCommon (`key` FixedString(15), `value` Nullable(Int8)) ENGINE = Log();
|
|
CREATE TABLE tableTrees (`key` FixedString(15), `name` Nullable(Int8), `name2` Nullable(Int8)) ENGINE = Log();
|
|
CREATE TABLE tableFlowers (`key` FixedString(15), `name` Nullable(Int8)) ENGINE = Log();
|
|
|
|
SELECT * FROM (
|
|
SELECT common.key, common.value, trees.name, trees.name2
|
|
FROM (
|
|
SELECT *
|
|
FROM tableCommon
|
|
) as common
|
|
INNER JOIN (
|
|
SELECT *
|
|
FROM tableTrees
|
|
) trees ON (common.key = trees.key)
|
|
)
|
|
UNION ALL
|
|
(
|
|
SELECT common.key, common.value,
|
|
null as name, null as name2
|
|
|
|
FROM (
|
|
SELECT *
|
|
FROM tableCommon
|
|
) as common
|
|
INNER JOIN (
|
|
SELECT *
|
|
FROM tableFlowers
|
|
) flowers ON (common.key = flowers.key)
|
|
);
|
|
|
|
SELECT * FROM (
|
|
SELECT common.key, common.value, trees.name, trees.name2
|
|
FROM (
|
|
SELECT *
|
|
FROM tableCommon
|
|
) as common
|
|
INNER JOIN (
|
|
SELECT *
|
|
FROM tableTrees
|
|
) trees ON (common.key = trees.key)
|
|
)
|
|
UNION ALL
|
|
(
|
|
SELECT common.key, common.value,
|
|
flowers.name, null as name2
|
|
|
|
FROM (
|
|
SELECT *
|
|
FROM tableCommon
|
|
) as common
|
|
INNER JOIN (
|
|
SELECT *
|
|
FROM tableFlowers
|
|
) flowers ON (common.key = flowers.key)
|
|
);
|
|
|
|
DROP TABLE IF EXISTS tableCommon;
|
|
DROP TABLE IF EXISTS tableTrees;
|
|
DROP TABLE IF EXISTS tableFlowers;
|