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Merge pull request #4794 from zhang2014/fix/crash_when_predicate

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fix crash when predicate optimzer & join on
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Artem Zuikov 2019-04-01 15:09:50 +03:00 committed by GitHub
commit 019c6ca591
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4 changed files with 8 additions and 1 deletions
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3
dbms/src/Interpreters/PredicateExpressionsOptimizer.cpp
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@ -340,8 +340,9 @@ ASTs PredicateExpressionsOptimizer::getSelectQueryProjectionColumns(ASTPtr & ast
std::vector<DatabaseAndTableWithAlias> tables = getDatabaseAndTables(*select_query, context.getCurrentDatabase());
/// TODO: get tables from evaluateAsterisk instead of tablesOnly() to extract asterisks in general way
NameSet source_columns;
std::vector<TableWithColumnNames> tables_with_columns = TranslateQualifiedNamesVisitor::Data::tablesOnly(tables);
TranslateQualifiedNamesVisitor::Data qn_visitor_data({}, tables_with_columns, false);
TranslateQualifiedNamesVisitor::Data qn_visitor_data(source_columns, tables_with_columns, false);
TranslateQualifiedNamesVisitor(qn_visitor_data).visit(ast);
QueryAliasesVisitor::Data query_aliases_data{aliases};

1
dbms/src/Interpreters/TranslateQualifiedNamesVisitor.cpp
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@ -16,6 +16,7 @@
#include <Parsers/ASTExpressionList.h>
#include <Parsers/ASTLiteral.h>
#include <Parsers/ASTFunction.h>
#include <iostream>
namespace DB

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;