Added randomASKII function by copying from the currentDatabase Function

dbms/src/Functions/randomASKII.cpp

@@ -0,0 +1,54 @@
+#include <Functions/IFunction.h>
+#include <Functions/FunctionFactory.h>
+#include <Interpreters/Context.h>
+#include <DataTypes/DataTypeString.h>
+#include <Core/Field.h>
+
+
+namespace DB
+{
+
+class FunctionRandomASKII : public IFunction
+{
+    const String db_name;
+
+public:
+    static constexpr auto name = "randomASKII";
+    static FunctionPtr create(const Context & context)
+    {
+        return std::make_shared<FunctionRandomASKII>(context.getRandomASKII());
+    }
+
+    explicit FunctionRandomASKII(const String & db_name_) : db_name{db_name_}
+    {
+    }
+
+    String getName() const override
+    {
+        return name;
+    }
+    size_t getNumberOfArguments() const override
+    {
+        return 0;
+    }
+
+    DataTypePtr getReturnTypeImpl(const DataTypes & /*arguments*/) const override
+    {
+        return std::make_shared<DataTypeString>();
+    }
+
+    bool isDeterministic() const override { return false; }
+
+    void executeImpl(Block & block, const ColumnNumbers &, size_t result, size_t input_rows_count) override
+    {
+        block.getByPosition(result).column = DataTypeString().createColumnConst(input_rows_count, db_name);
+    }
+};
+
+
+void registerFunctionRandomASKII(FunctionFactory & factory)
+{
+    factory.registerFunction<FunctionRandomASKII>();
+}
+
+}

dbms/src/Functions/registerFunctionsMiscellaneous.cpp

@@ -52,6 +52,7 @@ void registerFunctionEvalMLMethod(FunctionFactory &);
 void registerFunctionBasename(FunctionFactory &);
 void registerFunctionTransform(FunctionFactory &);
 void registerFunctionGetMacro(FunctionFactory &);
+void registerFunctionRandomASKII(FunctionFactory &);
 
 #if USE_ICU
 void registerFunctionConvertCharset(FunctionFactory &);
@@ -106,6 +107,7 @@ void registerFunctionsMiscellaneous(FunctionFactory & factory)
     registerFunctionBasename(factory);
     registerFunctionTransform(factory);
     registerFunctionGetMacro(factory);
+    registerFunctionRandomASKII(factory);
 
 #if USE_ICU
     registerFunctionConvertCharset(factory);