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Merge pull request #16826 from amosbird/fixcrash

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Fix crash in agg empty arglist
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alexey-milovidov 2020-11-14 23:23:00 +03:00 committed by GitHub
commit 2c0ab53492
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3 changed files with 7 additions and 1 deletions
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2
src/Interpreters/AggregateFunctionOfGroupByKeysVisitor.h
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@ -104,7 +104,7 @@ public:
KeepAggregateFunctionVisitor(keep_data).visit(function_node->arguments);
/// Place argument of an aggregate function instead of function
if (!keep_aggregator)
if (!keep_aggregator && !function_node->arguments->children.empty())
{
String alias = function_node->alias;
ast = (function_node->arguments->children[0])->clone();

1
tests/queries/0_stateless/01560_crash_in_agg_empty_arglist.reference Normal file
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@ -0,0 +1 @@
1

5
tests/queries/0_stateless/01560_crash_in_agg_empty_arglist.sql Normal file
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@ -0,0 +1,5 @@
-- make sure the system.query_log table is created
SELECT 1;
SYSTEM FLUSH LOGS;
SELECT any() as t, substring(query, 1, 70) AS query, avg(memory_usage) usage, count() count FROM system.query_log WHERE event_date >= toDate(1604295323) AND event_time >= toDateTime(1604295323) AND type in (1,2,3,4) and initial_user in ('') and('all' = 'all' or(positionCaseInsensitive(query, 'all') = 1)) GROUP BY query ORDER BY usage desc LIMIT 5; -- { serverError 42 }