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fix crash when predicate optimzer & join on

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zhang2014 2019-03-25 22:56:15 +08:00
parent 03cd41fbc7
commit 1eb5713a74
3 changed files with 6 additions and 1 deletions
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2
dbms/src/Interpreters/TranslateQualifiedNamesVisitor.cpp
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@ -74,7 +74,7 @@ void TranslateQualifiedNamesMatcher::visit(ASTIdentifier & identifier, ASTPtr &,
IdentifierSemantic::setMembership(identifier, best_table_pos + 1);
/// In case if column from the joined table are in source columns, change it's name to qualified.
if (best_table_pos && data.source_columns.count(identifier.shortName()))
if (best_table_pos && !data.source_columns.empty() && data.source_columns.count(identifier.shortName()))
IdentifierSemantic::setNeedLongName(identifier, true);
if (!data.tables.empty())
IdentifierSemantic::setColumnNormalName(identifier, data.tables[best_table_pos].first);

2
dbms/tests/queries/0_stateless/00597_push_down_predicate.reference
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@ -53,3 +53,5 @@ SELECT \n date, \n id, \n name, \n value, \n b.date, \n b.name
2000-01-01 1 test string 1 1 2000-01-01 test string 1 1
SELECT \n id, \n date, \n name, \n value\nFROM \n(\n SELECT \n toInt8(1) AS id, \n toDate(\'2000-01-01\') AS date\n FROM system.numbers \n LIMIT 1\n) \nANY LEFT JOIN \n(\n SELECT *\n FROM test.test \n WHERE date = toDate(\'2000-01-01\')\n) AS b USING (date, id)\nWHERE b.date = toDate(\'2000-01-01\')
1 2000-01-01 test string 1 1
SELECT \n date, \n id, \n name, \n value, \n `b.date`, \n `b.id`, \n `b.name`, \n `b.value`\nFROM \n(\n SELECT \n date, \n id, \n name, \n value, \n b.date, \n b.id, \n b.name, \n b.value\n FROM \n (\n SELECT \n date, \n id, \n name, \n value\n FROM test.test \n WHERE id = 1\n ) AS a \n ANY LEFT JOIN \n (\n SELECT *\n FROM test.test \n ) AS b ON id = b.id\n WHERE id = 1\n) \nWHERE id = 1
2000-01-01 1 test string 1 1 2000-01-01 1 test string 1 1

3
dbms/tests/queries/0_stateless/00597_push_down_predicate.sql
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@ -108,5 +108,8 @@ SELECT * FROM (SELECT * FROM test.test) ANY LEFT JOIN (SELECT * FROM test.test)
ANALYZE SELECT * FROM (SELECT toInt8(1) AS id, toDate('2000-01-01') AS date FROM system.numbers LIMIT 1) ANY LEFT JOIN (SELECT * FROM test.test) AS b USING date, id WHERE b.date = toDate('2000-01-01');
SELECT * FROM (SELECT toInt8(1) AS id, toDate('2000-01-01') AS date FROM system.numbers LIMIT 1) ANY LEFT JOIN (SELECT * FROM test.test) AS b USING date, id WHERE b.date = toDate('2000-01-01');
ANALYZE SELECT * FROM (SELECT * FROM (SELECT * FROM test.test) AS a ANY LEFT JOIN (SELECT * FROM test.test) AS b ON a.id = b.id) WHERE id = 1;
SELECT * FROM (SELECT * FROM (SELECT * FROM test.test) AS a ANY LEFT JOIN (SELECT * FROM test.test) AS b ON a.id = b.id) WHERE id = 1;
DROP TABLE IF EXISTS test.test;
DROP TABLE IF EXISTS test.test_view;