[fix](Nereids) should push project through limit after eliminate union node (#39640) #39755
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…n node (#39640) pick from master #39640 otherwise: push limit through union could generate plan: limit +-- union |-- limit | +-- empty relation +-- limit +-- project and then eliminate union will generate plan: +-- limit +- project +-- limit +-- project it could not be processed by tranlator correctly
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pick from master #39640
otherwise:
push limit through union could generate plan:
limit
+-- union
|-- limit
| +-- empty relation
+-- limit
+-- project
and then eliminate union will generate plan:
+-- limit
+- project
+-- limit
+-- project
it could not be processed by tranlator correctly
Proposed changes
Issue Number: close #xxx