From 0cc050ccdcf801b73c8125728fd6f63e4cc028a7 Mon Sep 17 00:00:00 2001
From: chenhao7253886 <chenhao16@baidu.com>
Date: Fri, 22 Mar 2019 15:30:43 +0800
Subject: [PATCH] Fix bug that throws exception when pruning partition type is
 date

---
 fe/src/main/java/org/apache/doris/analysis/DateLiteral.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fe/src/main/java/org/apache/doris/analysis/DateLiteral.java b/fe/src/main/java/org/apache/doris/analysis/DateLiteral.java
index f98a7fb81f4a8b..e3d1820c41436c 100644
--- a/fe/src/main/java/org/apache/doris/analysis/DateLiteral.java
+++ b/fe/src/main/java/org/apache/doris/analysis/DateLiteral.java
@@ -175,7 +175,11 @@ public Date getValue() {
 
     @Override
     protected Expr uncheckedCastTo(Type targetType) throws AnalysisException {
-        // programmer error, we should never reach this state
+        if (targetType.isDateType()) {
+            return this;
+        } else if (targetType.isStringType()) {
+            return new StringLiteral(date.toString()); 
+        }
         Preconditions.checkState(false);
         return this;
     }