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Fix LOGICAL_ERROR for max_distributed_connections=0

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This commit is contained in:
Azat Khuzhin 2021-04-20 09:03:32 +03:00
parent 82b6f49516
commit 86069ffb40
3 changed files with 3 additions and 1 deletions
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2
src/Interpreters/InterpreterSelectQuery.cpp
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@ -1658,7 +1658,7 @@ void InterpreterSelectQuery::executeFetchColumns(QueryProcessingStage::Enum proc
{
/// Table.
if (max_streams == 0)
throw Exception("Logical error: zero number of streams requested", ErrorCodes::LOGICAL_ERROR);
max_streams = 1;
/// If necessary, we request more sources than the number of threads - to distribute the work evenly over the threads.
if (max_streams > 1 && !is_remote)

1
tests/queries/0_stateless/01831_max_streams.reference Normal file
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@ -0,0 +1 @@
0

1
tests/queries/0_stateless/01831_max_streams.sql Normal file
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@ -0,0 +1 @@
select * from remote('127.1', system.one) settings max_distributed_connections=0;