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## What changes were proposed in this pull request? The expression `in(empty seq)` is invalid in some data source. Since `in(empty seq)` is always false, we should generate `in(empty seq)` to false literal in optimizer. The sql `SELECT * FROM t WHERE a IN ()` throws a `ParseException` which is consistent with Hive, don't need to change that behavior. ## How was this patch tested? Add new test case in `OptimizeInSuite`. Author: jiangxingbo <jiangxb1987@gmail.com> Closes #15977 from jiangxb1987/isin-empty. |
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