wangshuo128 commented on code in PR #10479:
URL: https://github.com/apache/doris/pull/10479#discussion_r927581617
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fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/logical/PushPredicateThroughJoin.java:
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@@ -42,28 +42,29 @@
/**
* Push the predicate in the LogicalFilter or LogicalJoin to the join children.
- * For example:
- * select a.k1,b.k1 from a join b on a.k1 = b.k1 and a.k2 > 2 and b.k2 > 5
where a.k1 > 1 and b.k1 > 2
- * Logical plan tree:
- * project
- * |
- * filter (a.k1 > 1 and b.k1 > 2)
- * |
- * join (a.k1 = b.k1 and a.k2 > 2 and b.k2 > 5)
- * / \
- * scan scan
- * transformed:
- * project
- * |
- * join (a.k1 = b.k1)
- * / \
- * filter(a.k1 > 1 and a.k2 > 2 ) filter(b.k1 > 2 and b.k2 > 5)
- * | |
- * scan scan
* todo: Now, only support eq on condition for inner join, support other case
later
*/
public class PushPredicateThroughJoin extends OneRewriteRuleFactory {
-
+ /*
Review Comment:
Comments should be wrapped in HTML tag `<pre></pre>` to avoid indents
changed.
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