wutiangan commented on a change in pull request #3188: fix join hints not work
when need table reorder
URL: https://github.com/apache/incubator-doris/pull/3188#discussion_r401328148
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File path: fe/src/main/java/org/apache/doris/analysis/SelectStmt.java
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@@ -612,11 +611,14 @@ public void materializeRequiredSlots(Analyzer analyzer)
throws AnalysisException
}
}
+ // When a join statement with a join hint, the decorated part should be
reordered as a whole,
+ // rather than individually.
protected void reorderTable(Analyzer analyzer) throws AnalysisException {
- List<Pair<TableRef, Long>> candidates = Lists.newArrayList();
+ List<Pair<List<TableRef>, Long>> candidates = Lists.newArrayList();
- // New pair of table ref and row count
- for (TableRef tblRef : fromClause_) {
+ for (int i = 0; i < fromClause_.size(); ++i) {
+ List<TableRef> tableRefs = new ArrayList<>();
+ TableRef tblRef = fromClause_.get(i);
if (tblRef.getJoinOp() != JoinOperator.INNER_JOIN) {
// Unsupported reorder outer join
Review comment:
How about cross join?
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