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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 | Standard toolkit and framework for generic User-defined functions. |
org.apache.hadoop.hive.ql.udf.xml |
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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UDAFPercentile
UDAF for calculating the percentile values. |
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UDFAbs
UDFAbs. |
class |
UDFAcos
UDFAcos. |
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UDFAscii
UDFAscii. |
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UDFAsin
UDFAsin. |
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UDFAtan
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UDFBin
UDFBin. |
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UDFCeil
UDFCeil. |
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UDFConcat
UDFConcat. |
class |
UDFConv
UDFConv. |
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UDFCos
UDFCos. |
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UDFDate
UDFDate. |
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UDFDateAdd
UDFDateAdd. |
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UDFDateDiff
UDFDateDiff. |
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UDFDateSub
UDFDateSub. |
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UDFDayOfMonth
UDFDayOfMonth. |
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UDFDegrees
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UDFE
|
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UDFExp
UDFExp. |
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UDFFindInSet
UDFFindInSet. |
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UDFFloor
UDFFloor. |
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UDFFromUnixTime
UDFFromUnixTime. |
class |
UDFHex
UDFHex. |
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UDFHour
UDFHour. |
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UDFJson
UDFJson. |
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UDFLength
UDFLength. |
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UDFLike
UDFLike. |
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UDFLn
UDFLn. |
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UDFLog
UDFLog. |
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UDFLog10
UDFLog10. |
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UDFLog2
UDFLog2. |
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UDFLower
UDFLower. |
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UDFLpad
UDFLpad. |
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UDFLTrim
UDFLTrim. |
class |
UDFMinute
UDFMinute. |
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UDFMonth
UDFMonth. |
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UDFOPBitAnd
UDFOPBitAnd. |
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UDFOPBitNot
UDFOPBitNot. |
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UDFOPBitOr
UDFOPBitOr. |
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UDFOPBitXor
UDFOPBitXor. |
class |
UDFOPDivide
UDFOPDivide. |
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UDFOPLongDivide
UDFOPLongDivide. |
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UDFOPMinus
UDFOPMinus. |
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UDFOPMod
UDFOPMod. |
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UDFOPMultiply
UDFOPMultiply. |
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UDFOPNegative
UDFOPNegative. |
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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
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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UDFPI
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UDFPosMod
class for computing positive modulo. |
class |
UDFPower
UDFPower. |
class |
UDFRadians
|
class |
UDFRand
UDFRand. |
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UDFRegExp
UDFRegExp. |
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UDFRegExpExtract
UDF to extract a specific group identified by a java regex. |
class |
UDFRegExpReplace
UDFRegExpReplace. |
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UDFRepeat
UDFRepeat. |
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UDFReverse
UDFReverse. |
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UDFRound
UDFRound. |
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UDFRpad
UDFRpad. |
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UDFRTrim
UDFRTrim. |
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UDFSecond
UDFSecond. |
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UDFSign
|
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UDFSin
UDFSin. |
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UDFSpace
UDFSpace. |
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UDFSqrt
Implementation of the SQRT UDF found in many databases. |
class |
UDFSubstr
UDFSubstr. |
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UDFTan
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UDFTrim
UDFTrim. |
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UDFUnhex
UDFUnhex. |
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UDFUnixTimeStamp
UDFUnixTimeStamp. |
class |
UDFUpper
UDFUpper. |
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UDFWeekOfYear
UDFWeekOfYear. |
class |
UDFYear
UDFYear. |
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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class |
GenericUDAFAverage
GenericUDAFAverage. |
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GenericUDAFCollectSet
GenericUDAFCollectSet |
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GenericUDAFContextNGrams
Estimates the top-k contextual n-grams in arbitrary sequential data using a heuristic. |
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GenericUDAFCorrelation
Compute the Pearson correlation coefficient corr(x, y), using the following stable one-pass method, based on: "Formulas for Robust, One-Pass Parallel Computation of Covariances and Arbitrary-Order Statistical Moments", Philippe Pebay, Sandia Labs and "The Art of Computer Programming, volume 2: Seminumerical Algorithms", Donald Knuth. |
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GenericUDAFCount
This class implements the COUNT aggregation function as in SQL. |
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GenericUDAFCovariance
Compute the covariance covar_pop(x, y), using the following one-pass method (ref. |
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GenericUDAFCovarianceSample
Compute the sample covariance by extending GenericUDAFCovariance and overriding the terminate() method of the evaluator. |
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GenericUDAFHistogramNumeric
Computes an approximate histogram of a numerical column using a user-specified number of bins. |
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GenericUDAFMax
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GenericUDAFMin
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GenericUDAFnGrams
Estimates the top-k n-grams in arbitrary sequential data using a heuristic. |
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GenericUDAFPercentileApprox
Computes an approximate percentile (quantile) from an approximate histogram, for very large numbers of rows where the regular percentile() UDAF might run out of memory. |
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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
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
GenericUDFArray. |
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GenericUDFArrayContains
GenericUDFArrayContains. |
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GenericUDFBaseCompare
GenericUDF Base Class for operations. |
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GenericUDFCoalesce
GenericUDF Class for SQL construct "COALESCE(a, b, c)". |
class |
GenericUDFConcatWS
Generic UDF for string function CONCAT_WS(sep,str1,str2,str3,...) . |
class |
GenericUDFElt
Generic UDF for string function ELT(N,str1,str2,str3,...) . |
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GenericUDFField
GenericUDFField. |
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GenericUDFHash
GenericUDF Class for computing hash values. |
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GenericUDFIn
GenericUDFIn Example usage: SELECT key FROM src WHERE key IN ("238", "1"); From MySQL page on IN(): To comply with the SQL standard, IN returns NULL not only if the expression on the left hand side is NULL, but also if no match is found in the list and one of the expressions in the list is NULL. |
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GenericUDFIndex
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
GenericUDFMap. |
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GenericUDFOPAnd
GenericUDF Class for computing and. |
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GenericUDFOPEqual
GenericUDF Class for operation EQUAL. |
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GenericUDFOPEqualOrGreaterThan
GenericUDF Class for operation EqualOrGreaterThan. |
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GenericUDFOPEqualOrLessThan
GenericUDF Class for operation EqualOrLessThan. |
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GenericUDFOPGreaterThan
GenericUDF Class for operation GreaterThan. |
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GenericUDFOPLessThan
GenericUDF Class for operation LessThan. |
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GenericUDFOPNot
GenericUDFOPNot. |
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GenericUDFOPNotEqual
GenericUDF Class for operation Not EQUAL. |
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GenericUDFOPNotNull
GenericUDFOPNotNull. |
class |
GenericUDFOPNull
GenericUDFOPNull. |
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GenericUDFOPOr
GenericUDF Class for computing or. |
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GenericUDFReflect
A simple generic udf to call java static functions via reflection. |
class |
GenericUDFSentences
GenericUDFSentences: splits a natural language chunk of text into sentences and words. |
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GenericUDFSize
GenericUDFSize. |
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GenericUDFSplit
GenericUDFSplit. |
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GenericUDFStringToMap
GenericUDFStringToMap. |
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GenericUDFStruct
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GenericUDFUnion
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GenericUDTFExplode
GenericUDTFExplode. |
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GenericUDTFJSONTuple
GenericUDTFJSONTuple: this |
class |
GenericUDTFParseUrlTuple
GenericUDTFParseUrlTuple: this |
Uses of Description in org.apache.hadoop.hive.ql.udf.xml |
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Classes in org.apache.hadoop.hive.ql.udf.xml with annotations of type Description | |
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GenericUDFXPath
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UDFXPathBoolean
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UDFXPathDouble
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UDFXPathFloat
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UDFXPathInteger
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UDFXPathLong
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class |
UDFXPathShort
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class |
UDFXPathString
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