From eac27fc0fd1454aa057b8e82a61c6a6f46b13f1e Mon Sep 17 00:00:00 2001
From: dapan1121 <wpan@taosdata.com>
Date: Fri, 24 Feb 2023 18:39:17 +0800
Subject: [PATCH] fix: empty ts range query issue

---
 source/libs/parser/src/parTranslater.c   |  3 +++
 tests/parallel_test/cases.task           |  1 +
 tests/script/tsim/query/emptyTsRange.sim | 20 ++++++++++++++++++++
 3 files changed, 24 insertions(+)
 create mode 100644 tests/script/tsim/query/emptyTsRange.sim

diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 7b6f795ecf..7e9ca9554b 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -3342,6 +3342,9 @@ static int32_t translateWhere(STranslateContext* pCxt, SSelectStmt* pSelect) {
   if (TSDB_CODE_SUCCESS == code) {
     code = getQueryTimeRange(pCxt, pSelect->pWhere, &pSelect->timeRange);
   }
+  if (TSDB_CODE_SUCCESS == code && pSelect->timeRange.skey > pSelect->timeRange.ekey) {
+    pSelect->isEmptyResult = true;
+  }
   return code;
 }
 
diff --git a/tests/parallel_test/cases.task b/tests/parallel_test/cases.task
index 63760d6ae4..867f16d71a 100644
--- a/tests/parallel_test/cases.task
+++ b/tests/parallel_test/cases.task
@@ -181,6 +181,7 @@
 ,,y,script,./test.sh -f tsim/query/groupby.sim
 ,,y,script,./test.sh -f tsim/query/event.sim
 ,,y,script,./test.sh -f tsim/query/forceFill.sim
+,,y,script,./test.sh -f tsim/query/emptyTsRange.sim
 ,,y,script,./test.sh -f tsim/qnode/basic1.sim
 ,,y,script,./test.sh -f tsim/snode/basic1.sim
 ,,y,script,./test.sh -f tsim/mnode/basic1.sim
diff --git a/tests/script/tsim/query/emptyTsRange.sim b/tests/script/tsim/query/emptyTsRange.sim
new file mode 100644
index 0000000000..ca3daf2bbb
--- /dev/null
+++ b/tests/script/tsim/query/emptyTsRange.sim
@@ -0,0 +1,20 @@
+system sh/stop_dnodes.sh
+system sh/deploy.sh -n dnode1 -i 1
+system sh/exec.sh -n dnode1 -s start
+sql connect
+
+sql drop database if exists db1;
+sql create database if not exists db1;
+sql use db1;
+sql create stable sta (ts timestamp, f1 double, f2 binary(200)) tags(t1 int);
+sql create table tba1 using sta tags(1);
+sql insert into tba1 values ('2022-04-26 15:15:01', 1.0, "a");
+sql insert into tba1 values ('2022-04-26 15:15:02', 2.0, "b");
+sql insert into tba1 values ('2022-04-26 15:15:04', 4.0, "b");
+sql insert into tba1 values ('2022-04-26 15:15:05', 5.0, "b");
+sql select last_row(*) from sta where ts >= 1678901803783 and ts <= 1678901803783 and  _c0 <= 1678901803782 interval(10d,8d) fill(linear) order by _wstart desc;
+if $rows != 0 then
+  return -1
+endi
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
-- 
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