From 505f25c5808d74a8a593042cf6eba36b4e13ea0f Mon Sep 17 00:00:00 2001
From: starocean999 <40539150+starocean999@users.noreply.github.com>
Date: Fri, 7 Apr 2023 09:15:00 +0800
Subject: [PATCH] [fix](planner)use base index if the where clause is a
 constant value (#18367)

sql : select bitmap_empty() from d_table where true;
should always use base index instead of any mv, because the conjuncts is constant (true) and use none of the column from any mv
---
 .../main/java/org/apache/doris/planner/OlapScanNode.java  | 4 +++-
 regression-test/data/mv_p0/where/k123/k123.out            | 8 ++++++++
 regression-test/suites/mv_p0/where/k123/k123.groovy       | 2 ++
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/planner/OlapScanNode.java b/fe/fe-core/src/main/java/org/apache/doris/planner/OlapScanNode.java
index 7ece5b09e3..6688d5c1ef 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/planner/OlapScanNode.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/planner/OlapScanNode.java
@@ -474,7 +474,9 @@ public class OlapScanNode extends ScanNode {
             if (mvColumn == null) {
                 boolean isBound = false;
                 for (Expr conjunct : conjuncts) {
-                    if (conjunct.isBound(slotDescriptor.getId())) {
+                    List<TupleId> tids = Lists.newArrayList();
+                    conjunct.getIds(tids, null);
+                    if (!tids.isEmpty() && conjunct.isBound(slotDescriptor.getId())) {
                         isBound = true;
                         break;
                     }
diff --git a/regression-test/data/mv_p0/where/k123/k123.out b/regression-test/data/mv_p0/where/k123/k123.out
index 55bd6c538c..faeb23fbb6 100644
--- a/regression-test/data/mv_p0/where/k123/k123.out
+++ b/regression-test/data/mv_p0/where/k123/k123.out
@@ -39,3 +39,11 @@
 2	4
 2	4
 
+-- !select_mv_constant --
+\N
+\N
+\N
+\N
+\N
+\N
+
diff --git a/regression-test/suites/mv_p0/where/k123/k123.groovy b/regression-test/suites/mv_p0/where/k123/k123.groovy
index 09201fe31c..29da7d05af 100644
--- a/regression-test/suites/mv_p0/where/k123/k123.groovy
+++ b/regression-test/suites/mv_p0/where/k123/k123.groovy
@@ -86,4 +86,6 @@ suite ("k123p") {
         contains "(k123p4w)"
     }
     qt_select_mv """select k1,k2+k3 from d_table where k1 = 2 and k4 = "b" order by k1;"""
+
+    qt_select_mv_constant """select bitmap_empty() from d_table where true;"""
 }