[GitHub] [druid] mcbrewster opened a new pull request #9705: add joins to column tree menu

[GitBox]

mcbrewster opened a new pull request #9705: add joins to column tree menu
URL: https://github.com/apache/druid/pull/9705
 
 
   For datasources and dimensions in the lookup schema, the user now has the 
option to add a LEFT or INNER join to the current query. 
   
   The added clause will be :
   
   `<JOINTYPE> JOIN lookup.<datasource> ON 
lookup.<datasource>.<placeholderXXXOrColumn> = <currentDatasource>.XXX`
   
   
   <img width="1608" alt="Screen Shot 2020-04-15 at 11 28 03 AM" 
src="https://user-images.githubusercontent.com/37322608/79368345-76f00d00-7f0c-11ea-82e6-f364ee9b8f7d.png";>
   

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