sequence.pluck([selector1, selector2...]) → stream
array.pluck([selector1, selector2...]) → array
object.pluck([selector1, selector2...]) → object
singleSelection.pluck([selector1, selector2...]) → object
Plucks out one or more attributes from either an object or a sequence of objects (projection).
Example: We just need information about IronMan’s reactor and not the rest of the document.
r.table('marvel').get('IronMan').pluck('reactorState', 'reactorPower').run(conn)
Example: For the hero beauty contest we only care about certain qualities.
r.table('marvel').pluck('beauty', 'muscleTone', 'charm').run(conn)
Example: Pluck can also be used on nested objects.
r.table('marvel').pluck({:abilities => {:damage => true, :mana_cost => true}, :weapons => true}).run(conn)
Example: The nested syntax can quickly become overly verbose so there’s a shorthand for it.
r.table('marvel').pluck({:abilities => [:damage, :mana_cost]}, :weapons).run(conn)
For more information read the nested field documentation.
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