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Added field "is_deterministic" to system.functions

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Robert Schulze 2023-09-18 15:26:54 +00:00
parent 711876dfa8
commit 4373ed0f98
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GPG Key ID: 26703B55FB13728A
2 changed files with 39 additions and 19 deletions
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57
src/Storages/System/StorageSystemFunctions.cpp
View File

@ -1,5 +1,6 @@
#include <AggregateFunctions/AggregateFunctionFactory.h>
#include <DataTypes/DataTypeMap.h>
#include <DataTypes/DataTypeNullable.h>
#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypesNumber.h>
#include <DataTypes/DataTypeEnum.h>
@ -29,6 +30,7 @@ namespace
MutableColumns & res_columns,
const String & name,
UInt64 is_aggregate,
std::optional<UInt64> is_deterministic,
const String & create_query,
FunctionOrigin function_origin,
const Factory & factory)
@ -36,53 +38,58 @@ namespace
res_columns[0]->insert(name);
res_columns[1]->insert(is_aggregate);
if (!is_deterministic.has_value())
res_columns[2]->insertDefault();
else
res_columns[2]->insert(*is_deterministic);
if constexpr (std::is_same_v<Factory, UserDefinedSQLFunctionFactory> || std::is_same_v<Factory, UserDefinedExecutableFunctionFactory>)
{
res_columns[2]->insert(false);
res_columns[3]->insertDefault();
res_columns[3]->insert(false);
res_columns[4]->insertDefault();
}
else
{
res_columns[2]->insert(factory.isCaseInsensitive(name));
res_columns[3]->insert(factory.isCaseInsensitive(name));
if (factory.isAlias(name))
res_columns[3]->insert(factory.aliasTo(name));
res_columns[4]->insert(factory.aliasTo(name));
else
res_columns[3]->insertDefault();
res_columns[4]->insertDefault();
}
res_columns[4]->insert(create_query);
res_columns[5]->insert(static_cast<Int8>(function_origin));
res_columns[5]->insert(create_query);
res_columns[6]->insert(static_cast<Int8>(function_origin));
if constexpr (std::is_same_v<Factory, FunctionFactory>)
{
if (factory.isAlias(name))
{
res_columns[6]->insertDefault();
res_columns[7]->insertDefault();
res_columns[8]->insertDefault();
res_columns[9]->insertDefault();
res_columns[10]->insertDefault();
res_columns[11]->insertDefault();
res_columns[12]->insertDefault();
}
else
{
auto documentation = factory.getDocumentation(name);
res_columns[6]->insert(documentation.description);
res_columns[7]->insert(documentation.syntax);
res_columns[8]->insert(documentation.argumentsAsString());
res_columns[9]->insert(documentation.returned_value);
res_columns[10]->insert(documentation.examplesAsString());
res_columns[11]->insert(documentation.categoriesAsString());
res_columns[7]->insert(documentation.description);
res_columns[8]->insert(documentation.syntax);
res_columns[9]->insert(documentation.argumentsAsString());
res_columns[10]->insert(documentation.returned_value);
res_columns[11]->insert(documentation.examplesAsString());
res_columns[12]->insert(documentation.categoriesAsString());
}
}
else
{
res_columns[6]->insertDefault();
res_columns[7]->insertDefault();
res_columns[8]->insertDefault();
res_columns[9]->insertDefault();
res_columns[10]->insertDefault();
res_columns[11]->insertDefault();
res_columns[12]->insertDefault();
}
}
}
@ -102,6 +109,7 @@ NamesAndTypesList StorageSystemFunctions::getNamesAndTypes()
return {
{"name", std::make_shared<DataTypeString>()},
{"is_aggregate", std::make_shared<DataTypeUInt8>()},
{"is_deterministic", std::make_shared<DataTypeNullable>(std::make_shared<DataTypeUInt8>())},
{"case_insensitive", std::make_shared<DataTypeUInt8>()},
{"alias_to", std::make_shared<DataTypeString>()},
{"create_query", std::make_shared<DataTypeString>()},
@ -121,14 +129,25 @@ void StorageSystemFunctions::fillData(MutableColumns & res_columns, ContextPtr c
const auto & function_names = functions_factory.getAllRegisteredNames();
for (const auto & function_name : function_names)
{
fillRow(res_columns, function_name, UInt64(0), "", FunctionOrigin::SYSTEM, functions_factory);
std::optional<UInt64> is_deterministic;
try
{
is_deterministic = functions_factory.tryGet(function_name, context)->isDeterministic();
}
catch (...)
{
/// Some functions throw because they need special configuration or setup before use.
/// Ignore the exception and simply show is_deterministic = NULL.
}
fillRow(res_columns, function_name, 0, is_deterministic, "", FunctionOrigin::SYSTEM, functions_factory);
}
const auto & aggregate_functions_factory = AggregateFunctionFactory::instance();
const auto & aggregate_function_names = aggregate_functions_factory.getAllRegisteredNames();
for (const auto & function_name : aggregate_function_names)
{
fillRow(res_columns, function_name, UInt64(1), "", FunctionOrigin::SYSTEM, aggregate_functions_factory);
fillRow(res_columns, function_name, 1, {1}, "", FunctionOrigin::SYSTEM, aggregate_functions_factory);
}
const auto & user_defined_sql_functions_factory = UserDefinedSQLFunctionFactory::instance();
@ -136,14 +155,14 @@ void StorageSystemFunctions::fillData(MutableColumns & res_columns, ContextPtr c
for (const auto & function_name : user_defined_sql_functions_names)
{
auto create_query = queryToString(user_defined_sql_functions_factory.get(function_name));
fillRow(res_columns, function_name, UInt64(0), create_query, FunctionOrigin::SQL_USER_DEFINED, user_defined_sql_functions_factory);
fillRow(res_columns, function_name, 0, {0}, create_query, FunctionOrigin::SQL_USER_DEFINED, user_defined_sql_functions_factory);
}
const auto & user_defined_executable_functions_factory = UserDefinedExecutableFunctionFactory::instance();
const auto & user_defined_executable_functions_names = user_defined_executable_functions_factory.getRegisteredNames(context);
for (const auto & function_name : user_defined_executable_functions_names)
{
fillRow(res_columns, function_name, UInt64(0), "", FunctionOrigin::EXECUTABLE_USER_DEFINED, user_defined_executable_functions_factory);
fillRow(res_columns, function_name, 0, {0}, "", FunctionOrigin::EXECUTABLE_USER_DEFINED, user_defined_executable_functions_factory);
}
}

1
tests/queries/0_stateless/02117_show_create_table_system.reference
View File

@ -283,6 +283,7 @@ CREATE TABLE system.functions
(
`name` String,
`is_aggregate` UInt8,
`is_deterministic` Nullable(UInt8),
`case_insensitive` UInt8,
`alias_to` String,
`create_query` String,