diff -uprN fastdb/examples/testtimeseries.cpp fastdb-test/examples/testtimeseries.cpp
--- fastdb/examples/testtimeseries.cpp	2013-02-18 03:47:32.000000000 +0800
+++ fastdb-test/examples/testtimeseries.cpp	2021-12-14 11:17:17.960619100 +0800
@@ -47,8 +47,8 @@ REGISTER_TEMPLATE(DailyBlock);
 REGISTER(Stock);
 
 inline int random(unsigned mod) { return rand() % mod; }
-inline float fmax(float x, float y) { return x > y ? x : y; }
-inline float fmin(float x, float y) { return x < y ? x : y; }
+inline float ffmax(float x, float y) { return x > y ? x : y; }
+inline float ffmin(float x, float y) { return x < y ? x : y; }
 
 int main(int argc, char* argv[])
 {
@@ -66,8 +66,8 @@ int main(int argc, char* argv[])
             quote.timestamp = i;
             quote.open = (float)random(10000)/100;
             quote.close = (float)random(10000)/100;
-            quote.high = fmax(quote.open, quote.close);
-            quote.low = fmin(quote.open, quote.close);
+            quote.high = ffmax(quote.open, quote.close);
+            quote.low = ffmin(quote.open, quote.close);
             quote.volume = random(1000);
             proc.add(stockId, quote); // add new element in time series
         }