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authorvitalyisaev <[email protected]>2023-11-14 09:58:56 +0300
committervitalyisaev <[email protected]>2023-11-14 10:20:20 +0300
commitc2b2dfd9827a400a8495e172a56343462e3ceb82 (patch)
treecd4e4f597d01bede4c82dffeb2d780d0a9046bd0 /contrib/clickhouse/src/Functions/errorCodeToName.cpp
parentd4ae8f119e67808cb0cf776ba6e0cf95296f2df7 (diff)
YQ Connector: move tests from yql to ydb (OSS)
Перенос папки с тестами на Коннектор из папки yql в папку ydb (синхронизируется с github).
Diffstat (limited to 'contrib/clickhouse/src/Functions/errorCodeToName.cpp')
-rw-r--r--contrib/clickhouse/src/Functions/errorCodeToName.cpp63
1 files changed, 63 insertions, 0 deletions
diff --git a/contrib/clickhouse/src/Functions/errorCodeToName.cpp b/contrib/clickhouse/src/Functions/errorCodeToName.cpp
new file mode 100644
index 00000000000..0025d38c8f2
--- /dev/null
+++ b/contrib/clickhouse/src/Functions/errorCodeToName.cpp
@@ -0,0 +1,63 @@
+#include <Functions/IFunction.h>
+#include <Functions/FunctionFactory.h>
+#include <DataTypes/DataTypeLowCardinality.h>
+#include <DataTypes/DataTypeString.h>
+#include <Columns/ColumnString.h>
+#include <Common/ErrorCodes.h>
+
+namespace DB
+{
+
+namespace ErrorCodes
+{
+ extern const int BAD_ARGUMENTS;
+}
+
+/** errorCodeToName() - returns the variable name for the error code.
+ */
+class FunctionErrorCodeToName : public IFunction
+{
+public:
+ static constexpr auto name = "errorCodeToName";
+ static FunctionPtr create(ContextPtr)
+ {
+ return std::make_shared<FunctionErrorCodeToName>();
+ }
+
+ String getName() const override { return name; }
+ size_t getNumberOfArguments() const override { return 1; }
+ bool useDefaultImplementationForConstants() const override { return true; }
+ bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
+
+ DataTypePtr getReturnTypeImpl(const DataTypes & types) const override
+ {
+ if (!isNumber(types.at(0)))
+ throw Exception(ErrorCodes::BAD_ARGUMENTS, "The argument of function {} must have simple numeric type, possibly Nullable", name);
+
+ return std::make_shared<DataTypeLowCardinality>(std::make_shared<DataTypeString>());
+ }
+
+ ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & res_type, size_t input_rows_count) const override
+ {
+ const auto & input_column = *arguments[0].column;
+ auto col_res = res_type->createColumn();
+
+ for (size_t i = 0; i < input_rows_count; ++i)
+ {
+ const Int64 error_code = input_column.getInt(i);
+ std::string_view error_name =
+ ErrorCodes::getName(static_cast<ErrorCodes::ErrorCode>(error_code));
+ col_res->insertData(error_name.data(), error_name.size());
+ }
+
+ return col_res;
+ }
+};
+
+
+REGISTER_FUNCTION(ErrorCodeToName)
+{
+ factory.registerFunction<FunctionErrorCodeToName>();
+}
+
+}