trait SupportsPushDownLimit extends ScanBuilder
A mix-in interface for ScanBuilder
. Data sources can implement this interface to
push down LIMIT. We can push down LIMIT with many other operations if they follow the
operator order we defined in ScanBuilder
's class doc.
- Annotations
- @Evolving()
- Source
- SupportsPushDownLimit.java
- Since
3.3.0
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- ScanBuilder
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- abstract def build(): Scan
- Definition Classes
- ScanBuilder
- abstract def pushLimit(limit: Int): Boolean
Pushes down LIMIT to the data source.
Concrete Value Members
- final def !=(arg0: Any): Boolean
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- final def isInstanceOf[T0]: Boolean
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- def isPartiallyPushed(): Boolean
Whether the LIMIT is partially pushed or not.
Whether the LIMIT is partially pushed or not. If it returns true, then Spark will do LIMIT again. This method will only be called when
#pushLimit
returns true. - final def ne(arg0: AnyRef): Boolean
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- Deprecated
(Since version 9)