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Merge pull request #36803 from CurtizJ/fix-unflatten-nested

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Fix creation of tables with `flatten_nested = 0`
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Kruglov Pavel 2022-05-02 13:58:16 +02:00 committed by GitHub
commit b98ac57090
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3 changed files with 22 additions and 1 deletions
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2
src/Interpreters/InterpreterCreateQuery.cpp
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@ -589,7 +589,7 @@ ColumnsDescription InterpreterCreateQuery::getColumnsDescription(
res.add(std::move(column));
}
if (context_->getSettingsRef().flatten_nested)
if (!attach && context_->getSettingsRef().flatten_nested)
res.flattenNested();
if (res.getAllPhysical().empty())

4
tests/queries/0_stateless/02292_nested_not_flattened_detach.reference Normal file
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@ -0,0 +1,4 @@
CREATE TABLE default.t_nested_detach\n(\n `n` Nested(u UInt32, s String)\n)\nENGINE = Log
n Nested(u UInt32, s String)
CREATE TABLE default.t_nested_detach\n(\n `n` Nested(u UInt32, s String)\n)\nENGINE = Log
n Nested(u UInt32, s String)

17
tests/queries/0_stateless/02292_nested_not_flattened_detach.sql Normal file
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@ -0,0 +1,17 @@
DROP TABLE IF EXISTS t_nested_detach;
SET flatten_nested = 0;
CREATE TABLE t_nested_detach (n Nested(u UInt32, s String)) ENGINE = Log;
SHOW CREATE TABLE t_nested_detach;
DESC TABLE t_nested_detach;
SET flatten_nested = 1;
DETACH TABLE t_nested_detach;
ATTACH TABLE t_nested_detach;
SHOW CREATE TABLE t_nested_detach;
DESC TABLE t_nested_detach;
DROP TABLE IF EXISTS t_nested_detach;