morningman commented on a change in pull request #3056: implement except node
URL: https://github.com/apache/incubator-doris/pull/3056#discussion_r390335009
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File path: fe/src/main/java/org/apache/doris/analysis/SetOperationStmt.java
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@@ -649,6 +648,13 @@ public void analyze(Analyzer parent) throws
AnalysisException, UserException {
if (isAnalyzed()) {
return;
}
+ if (queryStmt instanceof SelectStmt && ((SelectStmt)
queryStmt).fromClause_.isEmpty()) {
Review comment:
What this for? Could you add comment to explain this rewrite?
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