YQ Connector: move tests from yql to ydb (OSS)

Перенос папки с тестами на Коннектор из папки yql в папку ydb (синхронизируется с github).

1 files changed, 62 insertions, 0 deletions

diff --git a/contrib/clickhouse/src/Functions/dumpColumnStructure.cpp b/contrib/clickhouse/src/Functions/dumpColumnStructure.cpp
new file mode 100644
index 00000000000..11c0cb81922
--- /dev/null
+++ b/contrib/clickhouse/src/Functions/dumpColumnStructure.cpp
@@ -0,0 +1,62 @@
+#include <Functions/IFunction.h>
+#include <Functions/FunctionFactory.h>
+#include <DataTypes/DataTypeString.h>
+#include <Core/Field.h>
+
+
+namespace DB
+{
+namespace
+{
+
+/// Dump the structure of type and column.
+class FunctionDumpColumnStructure : public IFunction
+{
+public:
+    static constexpr auto name = "dumpColumnStructure";
+    static FunctionPtr create(ContextPtr)
+    {
+        return std::make_shared<FunctionDumpColumnStructure>();
+    }
+
+    String getName() const override
+    {
+        return name;
+    }
+
+    bool useDefaultImplementationForNulls() const override { return false; }
+    bool useDefaultImplementationForNothing() const override { return false; }
+    bool useDefaultImplementationForLowCardinalityColumns() const override { return false; }
+    bool useDefaultImplementationForSparseColumns() const override { return false; }
+
+    bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo & /*arguments*/) const override { return false; }
+
+    size_t getNumberOfArguments() const override
+    {
+        return 1;
+    }
+
+    DataTypePtr getReturnTypeImpl(const DataTypes & /*arguments*/) const override
+    {
+        return std::make_shared<DataTypeString>();
+    }
+
+    ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr &, size_t input_rows_count) const override
+    {
+        const auto & elem = arguments[0];
+
+        /// Note that the result is not a constant, because it contains columns size.
+
+        return DataTypeString().createColumnConst(input_rows_count,
+                elem.type->getName() + ", " + elem.column->dumpStructure())->convertToFullColumnIfConst();
+    }
+};
+
+}
+
+REGISTER_FUNCTION(DumpColumnStructure)
+{
+    factory.registerFunction<FunctionDumpColumnStructure>();
+}
+
+}