SdbIndex4RefExtension<K extends SdbKey, V extends SdbValue, I1 extends SdbIndexKey, I2 extends SdbIndexKey, I3 extends SdbIndexKey, I4 extends SdbIndexKey>  extension 
 
Extension on index on 4 fields.
- on
- 
          - SdbIndex4Ref<K, V, I1, I2, I3, I4> 
 
- SdbIndex4Ref<
Methods
- 
  lowerBoundary(I1 value1, I2 value2, I3 value3, I4 value4, {bool? include = true}) → SdbBoundary< (I1, I2, I3, I4)> 
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      Available on SdbIndex4Ref< Lower boundaryK, V, I1, I2, I3, I4> , provided by the SdbIndex4RefExtension extension
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  upperBoundary(I1 value1, I2 value2, I3 value3, I4 value4, {bool? include = false}) → SdbBoundary< (I1, I2, I3, I4)> 
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      Available on SdbIndex4Ref< Upper boundaryK, V, I1, I2, I3, I4> , provided by the SdbIndex4RefExtension extension