The Join object has left-side attributes and right-side attributes, which are compared to each other to form join predicates.

联结对象具有左属性和右属性，对这两个属性进行比较，从而形成联结谓词。

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Generate the expression for the join predicate by applying the join operator to the expressions for the left and right attributes.

将联结操作符应用于左右属性的表达式，从而产生联结谓词的表达式。

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If the facts object contains any join references, then look at each of these join objects and keep track of all attributes from both the left and right sides of these joins.

如果事实对象包含任何联结引用，那么要查看每个联结对象，记录这些联结左右两边的所有属性。

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Wells would take over in left field while Granderson is recovering from a broken right forearm and join an outfield that includes center fielder Brett Gardner and right fielder Ichiro Suzuki.

WSJ: Yanks on verge of getting Vernon Wells from Angels

The 34-year-old Wells would take over in left field while Granderson is recovering from a broken right forearm and join an outfield that includes center fielder Brett Gardner and right fielder Ichiro Suzuki.

WSJ: Yankees work to acquire Vernon Wells from Angels

He said he hoped local people would join in with the discussion and said "national figures from the left and right" would also be invited.

BBC: Bristol mayor wants Thatcher legacy debate