[SPARK-10443] [SQL] Refactor SortMergeOuterJoin to reduce duplication #8596
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This commit merges the two existing output iterator classes in an effort to reduce the symmetrically duplicate code. It also adds comments to make it more readable.
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@JoshRosen if you have time (this is relatively low priority) |
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Test build #41990 has finished for PR 8596 at commit
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andrewor14
changed the title
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LGTM |
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Merged into master. |
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LeftOutputIteratorandRightOutputIteratorare symmetrically identical and can share a lot of code. If someone makes a change in one but forgets to do the same thing in the other we'll end up with inconsistent behavior. This patch also adds inline comments to clarify the intention of the code.