ajfg93
commented
3 years ago @scratch28
replace this line
to
if (va.IsObject() && va.HasMember(key)) { \and recompile.
IsObject() needs to be checked before calling HasMember.
See from rapidson/document.h:
#if RAPIDJSON_HAS_STDSTRING
//! Check whether a member exists in the object with string object.
/*!
\param name Member name to be searched.
\pre IsObject() == true
\return Whether a member with that name exists.
\note It is better to use FindMember() directly if you need the obtain the value as well.
\note Linear time complexity.
*/
bool HasMember(const std::basic_string<Ch>& name) const { return FindMember(name) != MemberEnd(); }
#endif\pre IsObject() == true, I thint that means pre-condition.
Impala version 2.8 UDF breaks connection upon trying to deal with nested arrays example JSON:
{"customer_info":[{"field_name":"family_names","field_value":"Gonzalez"},{"field_name":"given_names","field_value":"Pablo"}],"phone":null}this works
select json_get_object('{"customer_info":[{"field_name":"family_names","field_value":"Gonzalez"},{"field_name":"given_names","field_value":"Pablo"}],"phone":null}','$.customer_info') ;but this breaks impala
select json_get_object('{"customer_info":[{"field_name":"family_names","field_value":"Gonzalez"},{"field_name":"given_names","field_value":"Pablo"}],"phone":null}','$.customer_info.field_name') ;