[incubator-doris] branch master updated: [Improve] Add FE function `timestamp` (#6339)

[liulijia]

This is an automated email from the ASF dual-hosted git repository.

liulijia pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-doris.git


The following commit(s) were added to refs/heads/master by this push:
     new 866814d  [Improve] Add FE function `timestamp` (#6339)
866814d is described below

commit 866814dc4740f8486123e6579b5ed2920107dca4
Author: Wang Shuo <wangshuo...@gmail.com>
AuthorDate: Wed Aug 4 11:52:46 2021 +0800

    [Improve] Add FE function `timestamp` (#6339)
    
    * Add FE function timestamp
---
 .../src/main/java/org/apache/doris/rewrite/FEFunctions.java       | 8 ++++++++
 .../test/java/org/apache/doris/planner/ConstantExpressTest.java   | 6 ++++++
 2 files changed, 14 insertions(+)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/rewrite/FEFunctions.java 
b/fe/fe-core/src/main/java/org/apache/doris/rewrite/FEFunctions.java
index d67c55c..03150ba 100755
--- a/fe/fe-core/src/main/java/org/apache/doris/rewrite/FEFunctions.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/rewrite/FEFunctions.java
@@ -317,6 +317,14 @@ public class FEFunctions {
         return null;
     }
 
+    @FEFunction(name = "timestamp", argTypes = {"DATETIME"}, returnType = 
"DATETIME")
+    public static DateLiteral timestamp(LiteralExpr arg) throws 
AnalysisException {
+        if (arg instanceof DateLiteral) {
+            return (DateLiteral) arg;
+        }
+        return null;
+    }
+
     /**
      
------------------------------------------------------------------------------
      */
diff --git 
a/fe/fe-core/src/test/java/org/apache/doris/planner/ConstantExpressTest.java 
b/fe/fe-core/src/test/java/org/apache/doris/planner/ConstantExpressTest.java
index 4bcaea3..5e30942 100644
--- a/fe/fe-core/src/test/java/org/apache/doris/planner/ConstantExpressTest.java
+++ b/fe/fe-core/src/test/java/org/apache/doris/planner/ConstantExpressTest.java
@@ -225,4 +225,10 @@ public class ConstantExpressTest {
         explainString = UtFrameUtils.getSQLPlanOrErrorMsg(connectContext, 
"explain " + sql);
         Assert.assertTrue(explainString.contains("NULL"));
     }
+
+    @Test
+    public void testTimestamp() throws Exception {
+        testConstantExpressResult("select timestamp('2021-07-24 00:00:00')",
+            "'2021-07-24 00:00:00'");
+    }
 }

---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org
For additional commands, e-mail: commits-h...@doris.apache.org