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fix functional test failure

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root 2022-10-05 19:39:54 -07:00 committed by Yong Wang
parent fc23a6d957
commit 38c204cb4e
1 changed files with 2 additions and 2 deletions
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4
src/Parsers/Kusto/KustoFunctions/KQLStringFunctions.cpp
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@ -538,10 +538,10 @@ bool SubString::convertImpl(String & out,IParser::Pos & pos)
if(startingIndex.empty())
throw Exception("number of arguments do not match in function: " + fn_name, ErrorCodes::SYNTAX_ERROR);
else
out = "substr("+ source + ", " + "((" + startingIndex + "% (toInt64(length(" + source + ")) AS n) + n) % n) + 1, " + length + ")";
out = "if(toInt64(length(" + source + ")) <= 0, '', substr("+ source + ", " + "((" + startingIndex + "% toInt64(length(" + source + ")) + toInt64(length(" + source + "))) % toInt64(length(" + source + "))) + 1, " + length + ") )";
}
else
out = "substr("+ source + "," + "((" + startingIndex + "% (toInt64(length(" + source + ")) AS n) + n) % n) + 1)";
out = "if(toInt64(length(" + source + ")) <= 0, '', substr("+ source + "," + "((" + startingIndex + "% toInt64(length(" + source + ")) + toInt64(length(" + source + "))) % toInt64(length(" + source + "))) + 1))";
return true;
}