Uses of Class
org.apache.hadoop.hive.ql.exec.description

Packages that use description
org.apache.hadoop.hive.ql.udf   
org.apache.hadoop.hive.ql.udf.generic   
 

Uses of description in org.apache.hadoop.hive.ql.udf
 

Classes in org.apache.hadoop.hive.ql.udf with annotations of type description
 class UDFAbs
           
 class UDFAcos
           
 class UDFAscii
           
 class UDFAsin
           
 class UDFBin
           
 class UDFCeil
           
 class UDFConcat
           
 class UDFConv
           
 class UDFCos
           
 class UDFDate
           
 class UDFDateAdd
           
 class UDFDateDiff
           
 class UDFDateSub
           
 class UDFDayOfMonth
           
 class UDFExp
           
 class UDFFloor
           
 class UDFFromUnixTime
           
 class UDFHex
           
 class UDFJson
           
 class UDFLength
           
 class UDFLike
           
 class UDFLn
           
 class UDFLog
           
 class UDFLog10
           
 class UDFLog2
           
 class UDFLower
           
 class UDFLpad
           
 class UDFLTrim
           
 class UDFMonth
           
 class UDFOPAnd
           
 class UDFOPBitAnd
           
 class UDFOPBitNot
           
 class UDFOPBitOr
           
 class UDFOPBitXor
           
 class UDFOPDivide
           
 class UDFOPEqual
          The reason that we list evaluate methods with all numeric types is for better performance; otherwise a single method that takes (Number a, Number b) and use a.doubleValue() == b.doubleValue() is enough.
 class UDFOPEqualOrGreaterThan
           
 class UDFOPEqualOrLessThan
           
 class UDFOPGreaterThan
           
 class UDFOPLessThan
           
 class UDFOPLongDivide
           
 class UDFOPMinus
           
 class UDFOPMod
           
 class UDFOPMultiply
           
 class UDFOPNegative
           
 class UDFOPNot
           
 class UDFOPNotEqual
           
 class UDFOPOr
           
 class UDFOPPlus
          The reason that we list evaluate methods with all numeric types is for both better performance and type checking (so we know int + int is still an int instead of a double); otherwise a single method that takes (Number a, Number b) and use a.doubleValue() == b.doubleValue() is enough.
 class UDFOPPositive
           
 class UDFParseUrl
          UDF to extract specfic parts from URL For example, parse_url('http://facebook.com/path/p1.php?query=1', 'HOST') will return 'facebook.com' For example, parse_url('http://facebook.com/path/p1.php?query=1', 'PATH') will return '/path/p1.php' parse_url('http://facebook.com/path/p1.php?query=1', 'QUERY') will return 'query=1' parse_url('http://facebook.com/path/p1.php?query=1#Ref', 'REF') will return 'Ref' parse_url('http://facebook.com/path/p1.php?query=1#Ref', 'PROTOCOL') will return 'http' Possible values are HOST,PATH,QUERY,REF,PROTOCOL,AUTHORITY,FILE,USERINFO Also you can get a value of particular key in QUERY, using syntax QUERY: eg: QUERY:k1.
 class UDFPosMod
          class for computing positive modulo.
 class UDFPower
           
 class UDFRand
           
 class UDFRegExp
           
 class UDFRegExpExtract
          UDF to extract a specific group identified by a java regex.
 class UDFRegExpReplace
           
 class UDFRepeat
           
 class UDFReverse
           
 class UDFRound
           
 class UDFRpad
           
 class UDFRTrim
           
 class UDFSin
           
 class UDFSpace
           
 class UDFSqrt
          Implementation of the SQRT UDF found in many databases.
 class UDFSubstr
           
 class UDFTrim
           
 class UDFUnixTimeStamp
           
 class UDFUpper
           
 class UDFYear
           
 

Uses of description in org.apache.hadoop.hive.ql.udf.generic
 

Classes in org.apache.hadoop.hive.ql.udf.generic with annotations of type description
 class GenericUDAFAverage
           
 class GenericUDAFCount
          This class implements the COUNT aggregation function as in SQL.
 class GenericUDAFStd
          Compute the standard deviation by extending GenericUDAFVariance and overriding the terminate() method of the evaluator.
 class GenericUDAFStdSample
          Compute the sample standard deviation by extending GenericUDAFVariance and overriding the terminate() method of the evaluator.
 class GenericUDAFSum
           
 class GenericUDAFVariance
          Compute the variance.
 class GenericUDAFVarianceSample
          Compute the sample variance by extending GenericUDAFVariance and overriding the terminate() method of the evaluator.
 class GenericUDFCoalesce
          GenericUDF Class for SQL construct "COALESCE(a, b, c)".
 class GenericUDFElt
          Generic UDF for string function ELT(N,str1,str2,str3,...).
 class GenericUDFHash
          GenericUDF Class for computing hash values.
 class GenericUDFIndex
           
 class GenericUDFInstr
          Generic UDF for string function INSTR(str,substr).
 class GenericUDFLocate
          Generic UDF for string function LOCATE(substr, str), LOCATE(substr, str, start).
 class GenericUDFOPNotNull
           
 class GenericUDFOPNull
           
 class GenericUDFSize
           
 class GenericUDFSplit
           
 



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