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Throw type mismatch exception from inferJoinKeyCommonType

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vdimir 2021-06-29 12:55:34 +03:00
parent df873866c9
commit 450e49fd28
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1 changed files with 7 additions and 9 deletions
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6
src/Interpreters/TableJoin.cpp
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@ -428,19 +428,17 @@ bool TableJoin::inferJoinKeyCommonType(const LeftNamesAndTypes & left, const Rig
auto common_type = DB::getLeastSupertype({ltype->second, rtype->second}, false);
if (common_type == nullptr || isNothing(common_type))
{
LOG_DEBUG(&Poco::Logger::get("TableJoin"),
throw DB::Exception(ErrorCodes::TYPE_MISMATCH,
"Can't infer supertype for joined columns: {}: {} at left, {}: {} at right.",
key_names_left[i], ltype->second->getName(),
key_names_right[i], rtype->second->getName());
continue;
}
if (!allow_right && !common_type->equals(*rtype->second))
{
LOG_DEBUG(&Poco::Logger::get("TableJoin"),
throw DB::Exception(ErrorCodes::TYPE_MISMATCH,
"Can't change type for right table: {}: {} -> {}.",
key_names_right[i], rtype->second->getName(), common_type->getName());
continue;
}
left_type_map[key_names_left[i]] = right_type_map[key_names_right[i]] = common_type;
}