From 751a219f0a3fe6d7971faed311c60ef4921e358d Mon Sep 17 00:00:00 2001
From: EmmyMiao87 <522274284@qq.com>
Date: Mon, 21 Oct 2019 13:57:50 +0800
Subject: [PATCH] Add the unchecked cast from date literal to others (#2021)

Fix the ISSUE:2017
This commit enable the cast function in date.
The date literal can be cast to target type which is implicitly castable such as int, bigint, largeint.
---
 fe/src/main/java/org/apache/doris/analysis/DateLiteral.java | 2 ++
 1 file changed, 2 insertions(+)

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 9d2b58a932..8bbedfee2b 100644
--- a/fe/src/main/java/org/apache/doris/analysis/DateLiteral.java
+++ b/fe/src/main/java/org/apache/doris/analysis/DateLiteral.java
@@ -313,6 +313,8 @@ public class DateLiteral extends LiteralExpr {
             return this;
         } else if (targetType.isStringType()) {
             return new StringLiteral(getStringValue());
+        } else if (Type.isImplicitlyCastable(this.type, targetType, true)) {
+            return new CastExpr(targetType, this);
         }
         Preconditions.checkState(false);
         return this;