[SPARK-9592] [SQL] Fix Last function implemented based on AggregateExpression1. #8172
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yhuai
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…pression1. https://issues.apache.org/jira/browse/SPARK-9592 #8113 has the fundamental fix. But, if we want to minimize the number of changed lines, we can go with this one. Then, in 1.6, we merge #8113. Author: Yin Huai <yhuai@databricks.com> Closes #8172 from yhuai/lastFix and squashes the following commits: b28c42a [Yin Huai] Regression test. af87086 [Yin Huai] Fix last. (cherry picked from commit 772e7c1) Signed-off-by: Michael Armbrust <michael@databricks.com>
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https://issues.apache.org/jira/browse/SPARK-9592
#8113 has the fundamental fix. But, if we want to minimize the number of changed lines, we can go with this one. Then, in 1.6, we merge #8113.