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MCOL-785 Implement DISTRIBUTED JSON functions
The following functions are created: Create function JSON_VALID and test cases Create function JSON_DEPTH and test cases Create function JSON_LENGTH and test cases Create function JSON_EQUALS and test cases Create function JSON_NORMALIZE and test cases Create function JSON_TYPE and test cases Create function JSON_OBJECT and test cases Create function JSON_ARRAY and test cases Create function JSON_KEYS and test cases Create function JSON_EXISTS and test cases Create function JSON_QUOTE/JSON_UNQUOTE and test cases Create function JSON_COMPACT/DETAILED/LOOSE and test cases Create function JSON_MERGE and test cases Create function JSON_MERGE_PATCH and test cases Create function JSON_VALUE and test cases Create function JSON_QUERY and test cases Create function JSON_CONTAINS and test cases Create function JSON_ARRAY_APPEND and test cases Create function JSON_ARRAY_INSERT and test cases Create function JSON_INSERT/REPLACE/SET and test cases Create function JSON_REMOVE and test cases Create function JSON_CONTAINS_PATH and test cases Create function JSON_OVERLAPS and test cases Create function JSON_EXTRACT and test cases Create function JSON_SEARCH and test cases Note: Some functions output differs from MDB because session variables that affects functions output,e.g JSON_QUOTE/JSON_UNQUOTE This depends on MCOL-5212
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51
utils/funcexp/func_json_unquote.cpp
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51
utils/funcexp/func_json_unquote.cpp
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#include "functor_json.h"
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#include "functioncolumn.h"
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#include "jsonhelpers.h"
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using namespace execplan;
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#include "rowgroup.h"
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using namespace rowgroup;
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#include "joblisttypes.h"
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using namespace joblist;
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#include "jsonhelpers.h"
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using namespace funcexp::helpers;
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namespace funcexp
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{
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CalpontSystemCatalog::ColType Func_json_unquote::operationType(FunctionParm& fp,
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CalpontSystemCatalog::ColType& resultType)
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{
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return fp[0]->data()->resultType();
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}
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std::string Func_json_unquote::getStrVal(rowgroup::Row& row, FunctionParm& fp, bool& isNull,
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execplan::CalpontSystemCatalog::ColType& type)
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{
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const string_view js = fp[0]->data()->getStrVal(row, isNull);
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if (isNull)
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return "";
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json_engine_t jsEg;
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int strLen;
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const CHARSET_INFO* cs = type.getCharset();
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initJSEngine(jsEg, cs, js);
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json_read_value(&jsEg);
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if (unlikely(jsEg.s.error) || jsEg.value_type != JSON_VALUE_STRING)
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return js.data();
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char* buf = (char*)alloca(jsEg.value_len);
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if ((strLen = json_unescape(cs, jsEg.value, jsEg.value + jsEg.value_len, &my_charset_utf8mb3_general_ci,
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(uchar*)buf, (uchar*)(buf + jsEg.value_len))) >= 0)
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{
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buf[strLen] = '\0';
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string ret = buf;
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return strLen == 0 ? "" : ret;
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}
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return js.data();
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}
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} // namespace funcexp
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