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Cover with tests how identifiers in SELECT queries are resolved
Add queries from https://github.com/ClickHouse/ClickHouse/issues/23194
This commit is contained in:
Nikita Fomichev
parent
ea9dc2e2b4
commit
baf9ca5fa9
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53
tests/queries/0_stateless/03101_analyzer_identifiers_1.sql
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53
tests/queries/0_stateless/03101_analyzer_identifiers_1.sql
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-- https://github.com/ClickHouse/ClickHouse/issues/23194
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-- This test add query-templates for fuzzer
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SET allow_experimental_analyzer = 1;
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DROP DATABASE IF EXISTS {CLICKHOUSE_DATABASE:Identifier};
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CREATE DATABASE {CLICKHOUSE_DATABASE:Identifier};
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USE {CLICKHOUSE_DATABASE:Identifier};
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CREATE TABLE table (
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column UInt64,
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nest Nested
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(
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key Nested (
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subkey UInt16
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)
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)
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) ENGINE = Memory();
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SELECT t.column FROM table AS t;
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USE default;
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SELECT column FROM {CLICKHOUSE_DATABASE:Identifier}.table;
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USE {CLICKHOUSE_DATABASE:Identifier};
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SELECT {CLICKHOUSE_DATABASE:Identifier}.table.column FROM table;
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--
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SELECT t1.x, t2.x, y FROM
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(SELECT x, y FROM VALUES ('x UInt16, y UInt16', (0,1))) AS t1,
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(SELECT x, z FROM VALUES ('x UInt16, z UInt16', (2,3))) AS t2;
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SELECT '---';
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SELECT 1;
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SELECT dummy;
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SELECT one.dummy;
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SELECT system.one.dummy;
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SELECT *;
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--
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SELECT nest.key.subkey FROM table;
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SELECT table.nest FROM table ARRAY JOIN nest;
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SELECT '---';
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SELECT * FROM (SELECT [1, 2, 3] AS arr) ARRAY JOIN arr;
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SELECT * FROM table ARRAY JOIN [1, 2, 3] AS arr;
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1 1 2
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1 2 1
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3 6
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---
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123
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---
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123 123
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123 1
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---
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555
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---
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99
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---
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1
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---
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1
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---
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2 2
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2 2
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---
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[2,3]
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1 [5,14]
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1 [5,14]
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85
tests/queries/0_stateless/03101_analyzer_identifiers_2.sql
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85
tests/queries/0_stateless/03101_analyzer_identifiers_2.sql
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-- https://github.com/ClickHouse/ClickHouse/issues/23194
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SET allow_experimental_analyzer = 1;
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CREATE TEMPORARY TABLE test1 (a String, nest Nested(x String, y String));
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SELECT a, nest.* FROM test1 ARRAY JOIN nest;
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SELECT a, n.* FROM test1 ARRAY JOIN nest AS n;
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CREATE TEMPORARY TABLE test2 (a String, nest Array(Tuple(x String, y String)));
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SELECT a, nest.* FROM test2 ARRAY JOIN nest;
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SELECT a, n.* FROM test2 ARRAY JOIN nest AS n;
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SELECT 1 AS x, x, x + 1;
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SELECT x, x + 1, 1 AS x;
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SELECT x, 1 + (2 + (3 AS x));
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SELECT '---';
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SELECT 123 AS x FROM (SELECT a, x FROM (SELECT 1 AS a, 2 AS b));
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SELECT '---';
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SELECT 123 AS x, (SELECT x) AS y;
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SELECT 123 AS x, 123 IN (SELECT x);
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SELECT '---';
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WITH 123 AS x SELECT 555 FROM (SELECT a, x FROM (SELECT 1 AS a, 2 AS b));
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SELECT '---';
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-- here we refer to table `test1` (defined as subquery) three times, one of them inside another scalar subquery.
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WITH t AS (SELECT 1) SELECT t, (SELECT * FROM t) FROM t; -- { serverError UNKNOWN_IDENTIFIER }
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-- throws, because x is not visible outside.
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SELECT x FROM (SELECT y FROM VALUES ('y UInt16', (2)) WHERE (1 AS x) = y) AS t; -- { serverError UNKNOWN_IDENTIFIER }
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-- throws, because the table name `t` is not visible outside
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SELECT t.x FROM (SELECT * FROM (SELECT 1 AS x) AS t); -- { serverError UNKNOWN_IDENTIFIER }
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SELECT x FROM (SELECT * FROM (SELECT 99 AS x) AS t);
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SELECT '---';
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SELECT t.x FROM (SELECT 1 AS x) AS t;
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SELECT t.a FROM (SELECT a FROM test1) AS t;
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SELECT a FROM (SELECT a FROM test1) AS t;
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SELECT '---';
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-- this is wrong, the `tbl` name is not exported
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SELECT test1.a FROM (SELECT a FROM test1) AS t; -- { serverError UNKNOWN_IDENTIFIER }
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-- this is also wrong, the `t2` alias is not exported
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SELECT test1.a FROM (SELECT a FROM test1 AS t2) AS t; -- { serverError UNKNOWN_IDENTIFIER }
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-- does not work, `x` is not visible;
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SELECT x, (SELECT 1 AS x); -- { serverError UNKNOWN_IDENTIFIER }
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-- does not work either;
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SELECT x IN (SELECT 1 AS x); -- { serverError UNKNOWN_IDENTIFIER }
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-- this will work, but keep in mind that there are two different `x`.
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SELECT x IN (SELECT 1 AS x) FROM (SELECT 1 AS x);
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SELECT '---';
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SELECT x + 1 AS x, x FROM (SELECT 1 AS x);
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SELECT x, x + 1 AS x FROM (SELECT 1 AS x);
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SELECT 1 AS x, 2 AS x; -- { serverError MULTIPLE_EXPRESSIONS_FOR_ALIAS }
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SELECT '---';
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SELECT arrayMap(x -> x + 1, [1, 2]);
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SELECT x, arrayMap((x, y) -> x[1] + y + arrayFirst(x -> x != y, x), arr) FROM (SELECT 1 AS x, [([1, 2], 3), ([4, 5], 6)] AS arr);
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SELECT x1, arrayMap((x2, y2) -> x2[1] + y2 + arrayFirst(x3 -> x3 != y2, x2), arr) FROM (SELECT 1 AS x1, [([1, 2], 3), ([4, 5], 6)] AS arr);
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SELECT arrayMap(x -> [y * 2, (x + 1) AS y, 1 AS z], [1, 2]), y; -- { serverError UNKNOWN_IDENTIFIER }
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-- TODO: this must work
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--SELECT arrayMap(x -> [y * 2, (x + 1) AS y, 1 AS z], [1, 2]), z;
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SELECT arrayMap(x -> (x + 1) AS y, [3, 5]), arrayMap(x -> (x || 'hello') AS y, ['qq', 'ww']); -- { serverError MULTIPLE_EXPRESSIONS_FOR_ALIAS }
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0
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2
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20
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---
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0
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0
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---
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1 2
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1 2
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---
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1 1
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1 1
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---
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90
tests/queries/0_stateless/03101_analyzer_identifiers_3.sql
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90
tests/queries/0_stateless/03101_analyzer_identifiers_3.sql
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@ -0,0 +1,90 @@
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-- https://github.com/ClickHouse/ClickHouse/issues/23194
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SET allow_experimental_analyzer = 1;
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DROP DATABASE IF EXISTS db1_03101;
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DROP DATABASE IF EXISTS db2_03101;
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CREATE DATABASE db1_03101;
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CREATE DATABASE db2_03101;
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USE db1_03101;
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CREATE TABLE db1_03101.tbl
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(
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col String,
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db1_03101 Nested
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(
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tbl Nested
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(
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col String
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)
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)
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)
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ENGINE = Memory;
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SELECT db1_03101.tbl.col FROM db1_03101.tbl;
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SELECT db1_03101.* FROM tbl;
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SELECT db1_03101 FROM tbl;
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SELECT * FROM tbl;
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SELECT count(*) FROM tbl;
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SELECT * + * FROM VALUES('a UInt16', 1, 10);
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SELECT '---';
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SELECT * GROUP BY *;
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-- not ok as every component of ORDER BY may contain ASC/DESC and COLLATE; though can be supported in some sense
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-- but it works
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SELECT * ORDER BY *;
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SELECT * WHERE *; -- { serverError UNSUPPORTED_METHOD }
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SELECT '---';
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SELECT * FROM (SELECT 1 AS a) AS t, (SELECT 2 AS b) AS u;
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-- equivalent to:
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SELECT a, b FROM (SELECT 1 AS a) AS t, (SELECT 2 AS b) AS u;
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SELECT '---';
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SELECT * FROM (SELECT 1 AS a) AS t, (SELECT 1 AS a) AS u;
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-- equivalent to:
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SELECT t.a, u.a FROM (SELECT 1 AS a) AS t, (SELECT 1 AS a) AS u;
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SELECT '---';
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---- TODO: think about it
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--CREATE TABLE db1_03101.t
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--(
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-- a UInt16
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--)
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--ENGINE = Memory;
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--
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--CREATE TABLE db2_03101.t
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--(
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-- a UInt16
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--)
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--ENGINE = Memory;
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--
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--SELECT * FROM (SELECT 1 AS a) AS db2_03101.t, (SELECT 1 AS a) AS db1_03101.t;
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---- equivalent to:
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--SELECT db2_03101.t.a, db1_03101.t.a FROM (SELECT 1 AS a) AS db2_03101.t, (SELECT 1 AS a) AS db1_03101.t;
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CREATE TABLE t
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(
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x String,
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nest Nested
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(
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a String,
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b String
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)
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) ENGINE = Memory;
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SELECT * FROM t;
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-- equivalent to:
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SELECT x, nest.* FROM t;
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-- equivalent to:
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SELECT x, nest.a, nest.b FROM t;
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@ -0,0 +1,25 @@
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1
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('hello',1) hello
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0
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---
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0
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hello 1
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---
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0
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0
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---
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1 1
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1
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1
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---
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3
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---
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5
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5
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5
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5
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5
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---
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11
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---
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10 12 11
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103
tests/queries/0_stateless/03101_analyzer_identifiers_4.sql
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103
tests/queries/0_stateless/03101_analyzer_identifiers_4.sql
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@ -0,0 +1,103 @@
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-- https://github.com/ClickHouse/ClickHouse/issues/23194
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SET allow_experimental_analyzer = 1;
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DROP DATABASE IF EXISTS {CLICKHOUSE_DATABASE:Identifier};
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CREATE DATABASE {CLICKHOUSE_DATABASE:Identifier};
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USE {CLICKHOUSE_DATABASE:Identifier};
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-- simple tuple access operator
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SELECT tuple(1, 'a').1;
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-- named tuple or complex column access operator - can be applied to Nested type as well as Array of named Tuple
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SELECT CAST(('hello', 1) AS Tuple(hello String, count UInt32)) AS t, t.hello;
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-- TODO: this doesn't work
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-- https://github.com/ClickHouse/ClickHouse/issues/57361
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-- SELECT CAST(('hello', 1) AS Tuple(hello String, count UInt32)).hello;
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-- expansion of a tuple or complex column with asterisk
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SELECT tuple(1, 'a').*;
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SELECT '---';
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SELECT CAST(('hello', 1) AS Tuple(name String, count UInt32)).*;
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SELECT untuple(CAST(('hello', 1) AS Tuple(name String, count UInt32))); -- will give two columns `name` and `count`.
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SELECT '---';
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CREATE TABLE {CLICKHOUSE_DATABASE:Identifier}.t
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(
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col String,
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hello String,
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world String
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)
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ENGINE = Memory;
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CREATE TABLE {CLICKHOUSE_DATABASE:Identifier}.u
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(
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cc String
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)
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ENGINE = Memory;
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SELECT * EXCEPT('hello|world');
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-- TODO: Qualified matcher t.* EXCEPT 'hello|world' does not find table.
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-- SELECT t.* EXCEPT(hello, world);
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-- SELECT {CLICKHOUSE_DATABASE:Identifier}.t.* REPLACE(x + 1 AS x);
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SELECT * EXCEPT(hello) REPLACE(x + 1 AS x);
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SELECT COLUMNS('^c') FROM t;
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SELECT t.COLUMNS('^c') FROM t, u;
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SELECT t.COLUMNS('^c') EXCEPT (test_hello, test_world) FROM t, u;
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SELECT '---';
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SELECT * FROM (SELECT x, x FROM (SELECT 1 AS x));
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SELECT x FROM (SELECT x, x FROM (SELECT 1 AS x));
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SELECT 1 FROM (SELECT x, x FROM (SELECT 1 AS x));
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SELECT '---';
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SELECT `plus(1, 2)` FROM (SELECT 1 + 2);
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-- Lambda expressions can be aliased. (proposal)
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--SELECT arrayMap(plus, [1, 2], [10, 20]);
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--SELECT x -> x + 1 AS fun;
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SELECT '---';
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SELECT x FROM numbers(5 AS x);
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SELECT '---';
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CREATE TEMPORARY TABLE aliased
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(
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x UInt8 DEFAULT 0,
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y ALIAS x + 1
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);
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INSERT INTO aliased VALUES (10);
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SELECT y FROM aliased;
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CREATE TEMPORARY TABLE aliased2
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(
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x UInt8,
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y ALIAS ((x + 1) AS z) + 1
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);
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SELECT x, y, z FROM aliased2; -- { serverError UNKNOWN_IDENTIFIER }
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SELECT '---';
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CREATE TEMPORARY TABLE aliased3
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(
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x UInt8,
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y ALIAS z + 1,
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z ALIAS x + 1
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);
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INSERT INTO aliased3 VALUES (10);
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SELECT x, y, z FROM aliased3;
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