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Merge pull request #6329 from Vdimir/throwif-custom-message-5772

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Added optional message argument in throwIf (#5772)
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alexey-milovidov 2019-08-06 17:27:46 +03:00 committed by GitHub
commit 416a498b0f
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3 changed files with 46 additions and 16 deletions
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55
dbms/src/Functions/throwIf.cpp
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@ -1,9 +1,11 @@
#include <Functions/IFunction.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionHelpers.h>
#include <Columns/ColumnString.h>
#include <Columns/ColumnsNumber.h>
#include <Columns/ColumnsCommon.h>
#include <DataTypes/DataTypesNumber.h>
#include <IO/WriteHelpers.h>
namespace DB
@ -13,6 +15,7 @@ namespace ErrorCodes
{
extern const int ILLEGAL_COLUMN;
extern const int ILLEGAL_TYPE_OF_ARGUMENT;
extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
extern const int FUNCTION_THROW_IF_VALUE_IS_NON_ZERO;
}
@ -32,46 +35,70 @@ public:
return name;
}
bool isVariadic() const override { return true; }
size_t getNumberOfArguments() const override
{
return 1;
return 0;
}
DataTypePtr getReturnTypeImpl(const DataTypes & arguments) const override
{
if (!isNativeNumber(arguments.front()))
const size_t number_of_arguments = arguments.size();
if (number_of_arguments < 1 || number_of_arguments > 2)
throw Exception{"Number of arguments for function " + getName() + " doesn't match: passed "
+ toString(number_of_arguments) + ", should be 1 or 2",
ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH};
if (!isNativeNumber(arguments[0]))
throw Exception{"Argument for function " + getName() + " must be number", ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT};
if (number_of_arguments > 1 && !isString(arguments[1]))
throw Exception{"Illegal type " + arguments[1]->getName() + " of argument of function " + getName(),
ErrorCodes::ILLEGAL_TYPE_OF_ARGUMENT};
return std::make_shared<DataTypeUInt8>();
}
bool useDefaultImplementationForConstants() const override { return true; }
ColumnNumbers getArgumentsThatAreAlwaysConstant() const override { return {1}; }
void executeImpl(Block & block, const ColumnNumbers & arguments, size_t result, size_t /*input_rows_count*/) override
{
std::optional<String> custom_message;
if (arguments.size() == 2)
{
auto * msg_column = checkAndGetColumnConst<ColumnString>(block.getByPosition(arguments[1]).column.get());
if (!msg_column)
throw Exception{"Second argument for function " + getName() + " must be constant String", ErrorCodes::ILLEGAL_COLUMN};
custom_message = msg_column->getValue<String>();
}
const auto in = block.getByPosition(arguments.front()).column.get();
if ( !execute<UInt8>(block, in, result)
&& !execute<UInt16>(block, in, result)
&& !execute<UInt32>(block, in, result)
&& !execute<UInt64>(block, in, result)
&& !execute<Int8>(block, in, result)
&& !execute<Int16>(block, in, result)
&& !execute<Int32>(block, in, result)
&& !execute<Int64>(block, in, result)
&& !execute<Float32>(block, in, result)
&& !execute<Float64>(block, in, result))
if ( !execute<UInt8>(block, in, result, custom_message)
&& !execute<UInt16>(block, in, result, custom_message)
&& !execute<UInt32>(block, in, result, custom_message)
&& !execute<UInt64>(block, in, result, custom_message)
&& !execute<Int8>(block, in, result, custom_message)
&& !execute<Int16>(block, in, result, custom_message)
&& !execute<Int32>(block, in, result, custom_message)
&& !execute<Int64>(block, in, result, custom_message)
&& !execute<Float32>(block, in, result, custom_message)
&& !execute<Float64>(block, in, result, custom_message))
throw Exception{"Illegal column " + in->getName() + " of first argument of function " + getName(), ErrorCodes::ILLEGAL_COLUMN};
}
template <typename T>
bool execute(Block & block, const IColumn * in_untyped, const size_t result)
bool execute(Block & block, const IColumn * in_untyped, const size_t result, const std::optional<String> & message)
{
if (const auto in = checkAndGetColumn<ColumnVector<T>>(in_untyped))
{
const auto & in_data = in->getData();
if (!memoryIsZero(in_data.data(), in_data.size() * sizeof(in_data[0])))
throw Exception("Value passed to 'throwIf' function is non zero", ErrorCodes::FUNCTION_THROW_IF_VALUE_IS_NON_ZERO);
throw Exception{message.value_or("Value passed to '" + getName() + "' function is non zero"),
ErrorCodes::FUNCTION_THROW_IF_VALUE_IS_NON_ZERO};
/// We return non constant to avoid constant folding.
block.getByPosition(result).column = ColumnUInt8::create(in_data.size(), 0);

1
dbms/tests/queries/0_stateless/00602_throw_if.reference
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@ -1,2 +1,3 @@
1
1
1000000

6
dbms/tests/queries/0_stateless/00602_throw_if.sh
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@ -3,7 +3,9 @@
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
. $CURDIR/../shell_config.sh
exception_pattern="Value passed to 'throwIf' function is non zero"
default_exception_message="Value passed to 'throwIf' function is non zero"
custom_exception_message="Number equals 1000000"
${CLICKHOUSE_CLIENT} --server_logs_file /dev/null --query="SELECT throwIf(number = 1000000) FROM system.numbers" 2>&1 | grep -cF "$exception_pattern"
${CLICKHOUSE_CLIENT} --server_logs_file /dev/null --query="SELECT throwIf(number = 1000000) FROM system.numbers" 2>&1 | grep -cF "$default_exception_message"
${CLICKHOUSE_CLIENT} --server_logs_file /dev/null --query="SELECT throwIf(number = 1000000, '$custom_exception_message') FROM system.numbers" 2>&1 | grep -cF "$custom_exception_message"
${CLICKHOUSE_CLIENT} --server_logs_file /dev/null --query="SELECT sum(x = 0) FROM (SELECT throwIf(number = 1000000) AS x FROM numbers(1000000))" 2>&1