From 274b4e73c3ec42e18e1075ee705cbc897d08c55b Mon Sep 17 00:00:00 2001
From: wyy566 <531938832@qq.com>
Date: Fri, 5 Mar 2021 16:26:59 +0800
Subject: [PATCH] fix the problem of reuse exchange

---
 .../java/io/prestosql/spi/plan/TableScanNode.java     | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/presto-spi/src/main/java/io/prestosql/spi/plan/TableScanNode.java b/presto-spi/src/main/java/io/prestosql/spi/plan/TableScanNode.java
index 728029418..ce68c7626 100644
--- a/presto-spi/src/main/java/io/prestosql/spi/plan/TableScanNode.java
+++ b/presto-spi/src/main/java/io/prestosql/spi/plan/TableScanNode.java
@@ -312,13 +312,20 @@ public class TableScanNode
 
     public boolean isPredicateSame(TableScanNode curr)
     {
+        boolean returnValue = false;
         if (filterExpr != null) {
-            return filterExpr.absEquals(curr.getFilterExpr());
+            returnValue = filterExpr.absEquals(curr.getFilterExpr());
         }
         else if (curr.getFilterExpr() == null) {
-            return true;
+            returnValue = true;
         }
 
+        if (returnValue) {
+            if (predicate.isPresent()) {
+                return predicate.get().absEquals(curr.getPredicate().get());
+            }
+            return true;
+        }
         return false;
     }
 }