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mariadb-columnstore-engine/utils/funcexp/func_json_normalize.cpp
2025-05-15 19:05:38 +04:00

49 lines
1.2 KiB
C++

#include <string_view>
using namespace std;
#include "functor_json.h"
#include "functioncolumn.h"
using namespace execplan;
#include "rowgroup.h"
using namespace rowgroup;
#include "joblisttypes.h"
using namespace joblist;
#include "jsonhelpers.h"
using namespace funcexp::helpers;
namespace funcexp
{
CalpontSystemCatalog::ColType Func_json_normalize::operationType(
FunctionParm& fp, CalpontSystemCatalog::ColType& /*resultType*/)
{
return fp[0]->data()->resultType();
}
string Func_json_normalize::getStrVal(rowgroup::Row& row, FunctionParm& fp, bool& isNull,
execplan::CalpontSystemCatalog::ColType& /*type*/)
{
const auto js_ns = fp[0]->data()->getStrVal(row, isNull);
if (isNull)
return "";
const string_view js = js_ns.unsafeStringRef();
using DynamicString = unique_ptr<DYNAMIC_STRING, decltype(&dynstr_free)>;
DynamicString str{new DYNAMIC_STRING(), dynstr_free};
if (init_dynamic_string(str.get(), NULL, 0, 0))
goto error;
if (json_normalize(str.get(), js.data(), js.size(), getCharset(fp[0])))
goto error;
return str->str;
error:
isNull = true;
return "";
}
} // namespace funcexp