Class BucketFunction
- java.lang.Object
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- org.apache.iceberg.spark.functions.BucketFunction
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- All Implemented Interfaces:
java.io.Serializable
,org.apache.spark.sql.connector.catalog.functions.Function
,org.apache.spark.sql.connector.catalog.functions.UnboundFunction
public class BucketFunction extends java.lang.Object implements org.apache.spark.sql.connector.catalog.functions.UnboundFunction
A Spark function implementation for the Iceberg bucket transform.Example usage:
SELECT system.bucket(128, 'abc')
, which returns the bucket 122.Note that for performance reasons, the given input number of buckets is not validated in the implementations used in code-gen. The number of buckets must be positive to give meaningful results.
- See Also:
- Serialized Form
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
BucketFunction.BucketBase
static class
BucketFunction.BucketBinary
static class
BucketFunction.BucketDecimal
static class
BucketFunction.BucketInt
static class
BucketFunction.BucketLong
static class
BucketFunction.BucketString
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Constructor Summary
Constructors Constructor Description BucketFunction()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description org.apache.spark.sql.connector.catalog.functions.BoundFunction
bind(org.apache.spark.sql.types.StructType inputType)
java.lang.String
description()
java.lang.String
name()
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Method Detail
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bind
public org.apache.spark.sql.connector.catalog.functions.BoundFunction bind(org.apache.spark.sql.types.StructType inputType)
- Specified by:
bind
in interfaceorg.apache.spark.sql.connector.catalog.functions.UnboundFunction
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description
public java.lang.String description()
- Specified by:
description
in interfaceorg.apache.spark.sql.connector.catalog.functions.UnboundFunction
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name
public java.lang.String name()
- Specified by:
name
in interfaceorg.apache.spark.sql.connector.catalog.functions.Function
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