From e5898c4a67324dc6b6ef448b774f08c0c78d1576 Mon Sep 17 00:00:00 2001
From: dapan1121 <89396746@qq.com>
Date: Fri, 5 Mar 2021 10:23:50 +0800
Subject: [PATCH] fix bug

---
 src/os/inc/osDef.h      | 14 ++++++++++++++
 src/util/src/tcompare.c |  4 ++--
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/os/inc/osDef.h b/src/os/inc/osDef.h
index cb91b0526b..bbe0f98ec0 100644
--- a/src/os/inc/osDef.h
+++ b/src/os/inc/osDef.h
@@ -83,6 +83,20 @@ extern "C" {
     }                            \
   } while (0)
 
+#define DEFAULT_DOUBLE_COMP(x, y)           \
+  do {                                      \
+    if (isnan(x) && isnan(y)) { return 0; } \
+    if (isnan(x)) { return -1; }            \
+    if (isnan(y)) { return 1; }             \
+    if ((x) == (y)) {                       \
+      return 0;                             \
+    } else {                                \
+      return (x) < (y) ? -1 : 1;            \
+    }                                       \
+  } while (0)
+
+#define DEFAULT_FLOAT_COMP(x, y) DEFAULT_DOUBLE_COMP(x, y)
+
 #define ALIGN_NUM(n, align) (((n) + ((align)-1)) & (~((align)-1)))
 
 // align to 8bytes
diff --git a/src/util/src/tcompare.c b/src/util/src/tcompare.c
index cd3428ddc5..4d18ef14e2 100644
--- a/src/util/src/tcompare.c
+++ b/src/util/src/tcompare.c
@@ -392,8 +392,8 @@ __compar_fn_t getKeyComparFunc(int32_t keyType) {
 int32_t doCompare(const char* f1, const char* f2, int32_t type, size_t size) {
   switch (type) {
     case TSDB_DATA_TYPE_INT:        DEFAULT_COMP(GET_INT32_VAL(f1), GET_INT32_VAL(f2));
-    case TSDB_DATA_TYPE_DOUBLE:     DEFAULT_COMP(GET_DOUBLE_VAL(f1), GET_DOUBLE_VAL(f2));
-    case TSDB_DATA_TYPE_FLOAT:      DEFAULT_COMP(GET_FLOAT_VAL(f1), GET_FLOAT_VAL(f2));
+    case TSDB_DATA_TYPE_DOUBLE:     DEFAULT_DOUBLE_COMP(GET_DOUBLE_VAL(f1), GET_DOUBLE_VAL(f2));
+    case TSDB_DATA_TYPE_FLOAT:      DEFAULT_FLOAT_COMP(GET_FLOAT_VAL(f1), GET_FLOAT_VAL(f2));
     case TSDB_DATA_TYPE_BIGINT:     DEFAULT_COMP(GET_INT64_VAL(f1), GET_INT64_VAL(f2));
     case TSDB_DATA_TYPE_SMALLINT:   DEFAULT_COMP(GET_INT16_VAL(f1), GET_INT16_VAL(f2));
     case TSDB_DATA_TYPE_TINYINT:
-- 
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