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Fix nullptr dereference in defaultValueOfTypeName

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This commit is contained in:
Alexey Milovidov 2020-08-27 21:36:18 +03:00
parent 74d4fa3993
commit 01567d62a4
3 changed files with 3 additions and 3 deletions
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5
src/Functions/defaultValueOfTypeName.cpp
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@ -40,9 +40,8 @@ public:
{
const ColumnConst * col_type_const = typeid_cast<const ColumnConst *>(arguments.front().column.get());
if (!col_type_const || !isString(arguments.front().type))
throw Exception("The argument of function " + getName() + " must be a constant string describing type. "
"Instead there is a column with the following structure: " + arguments.front().column->dumpStructure(),
ErrorCodes::ILLEGAL_COLUMN);
throw Exception("The argument of function " + getName() + " must be a constant string describing type.",
ErrorCodes::ILLEGAL_COLUMN);
return DataTypeFactory::instance().get(col_type_const->getValue<String>());
}

0
tests/queries/0_stateless/01459_default_value_of_argument_type_nullptr_dereference.reference Normal file
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1
tests/queries/0_stateless/01459_default_value_of_argument_type_nullptr_dereference.sql Normal file
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@ -0,0 +1 @@
SELECT defaultValueOfTypeName(FQDN()); -- { serverError 44 }