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Packages that use description | |
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org.apache.hadoop.hive.ql.udf | |
org.apache.hadoop.hive.ql.udf.generic |
Uses of description in org.apache.hadoop.hive.ql.udf |
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Classes in org.apache.hadoop.hive.ql.udf with annotations of type description | |
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UDAFMax
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UDAFMin
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UDFAbs
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UDFAcos
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UDFAscii
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UDFAsin
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UDFBin
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UDFCeil
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UDFConcat
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UDFConv
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UDFCos
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UDFDate
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UDFDateAdd
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UDFDateDiff
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UDFDateSub
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UDFDayOfMonth
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UDFExp
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UDFFindInSet
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UDFFloor
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UDFFromUnixTime
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UDFHex
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UDFHour
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UDFJson
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UDFLength
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UDFLike
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UDFLn
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UDFLog
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UDFLog10
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UDFLog2
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UDFLower
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UDFLpad
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UDFLTrim
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UDFMinute
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UDFMonth
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UDFOPAnd
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UDFOPBitAnd
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UDFOPBitNot
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UDFOPBitOr
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UDFOPBitXor
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UDFOPDivide
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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. |
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UDFOPEqualOrGreaterThan
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UDFOPEqualOrLessThan
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UDFOPGreaterThan
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UDFOPLessThan
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UDFOPLongDivide
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UDFOPMinus
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UDFOPMod
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UDFOPMultiply
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UDFOPNegative
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UDFOPNot
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UDFOPNotEqual
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UDFOPOr
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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. |
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UDFOPPositive
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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: |
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UDFPosMod
class for computing positive modulo. |
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UDFPower
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UDFRand
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UDFRegExp
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UDFRegExpExtract
UDF to extract a specific group identified by a java regex. |
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UDFRegExpReplace
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UDFRepeat
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UDFReverse
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UDFRound
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UDFRpad
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UDFRTrim
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UDFSecond
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UDFSin
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UDFSpace
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UDFSqrt
Implementation of the SQRT UDF found in many databases. |
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UDFSubstr
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UDFTrim
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UDFUnhex
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UDFUnixTimeStamp
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UDFUpper
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UDFWeekOfYear
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UDFYear
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Uses of description in org.apache.hadoop.hive.ql.udf.generic |
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Classes in org.apache.hadoop.hive.ql.udf.generic with annotations of type description | |
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GenericUDAFAverage
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GenericUDAFCount
This class implements the COUNT aggregation function as in SQL. |
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GenericUDAFStd
Compute the standard deviation by extending GenericUDAFVariance and overriding the terminate() method of the evaluator. |
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GenericUDAFStdSample
Compute the sample standard deviation by extending GenericUDAFVariance and overriding the terminate() method of the evaluator. |
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GenericUDAFSum
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GenericUDAFVariance
Compute the variance. |
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GenericUDAFVarianceSample
Compute the sample variance by extending GenericUDAFVariance and overriding the terminate() method of the evaluator. |
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GenericUDFArray
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GenericUDFCoalesce
GenericUDF Class for SQL construct "COALESCE(a, b, c)". |
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GenericUDFConcatWS
Generic UDF for string function CONCAT_WS(sep,str1,str2,str3,...) . |
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GenericUDFElt
Generic UDF for string function ELT(N,str1,str2,str3,...) . |
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GenericUDFField
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GenericUDFHash
GenericUDF Class for computing hash values. |
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GenericUDFIndex
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GenericUDFInstr
Generic UDF for string function INSTR(str,substr) . |
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GenericUDFLocate
Generic UDF for string function LOCATE(substr, str) , LOCATE(substr, str, start) . |
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GenericUDFMap
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GenericUDFOPNotNull
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GenericUDFOPNull
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GenericUDFSize
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GenericUDFSplit
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GenericUDTFExplode
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