| Class and Description | 
|---|
| DruidExpression
 Represents two kinds of expression-like concepts that native Druid queries support:
 (1) SimpleExtractions, which are direct column access, possibly with an extractionFn
 (2) native Druid expressions. 
 | 
| Class and Description | 
|---|
| DruidExpression
 Represents two kinds of expression-like concepts that native Druid queries support:
 (1) SimpleExtractions, which are direct column access, possibly with an extractionFn
 (2) native Druid expressions. 
 | 
| OperatorConversions.OperatorBuilder | 
| SimpleExtraction
 Represents a "simple" extraction of a value from a Druid row, which is defined as a column plus an extractionFn. 
 | 
| SqlOperatorConversion | 
| Class and Description | 
|---|
| DruidExpression
 Represents two kinds of expression-like concepts that native Druid queries support:
 (1) SimpleExtractions, which are direct column access, possibly with an extractionFn
 (2) native Druid expressions. 
 | 
| SqlOperatorConversion | 
| Class and Description | 
|---|
| SqlOperatorConversion | 
| Class and Description | 
|---|
| SimpleExtraction
 Represents a "simple" extraction of a value from a Druid row, which is defined as a column plus an extractionFn. 
 | 
| Class and Description | 
|---|
| SqlOperatorConversion | 
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