modify test case of string function concat

tests/script/general/compute/str_concat.sim

@@ -2,6 +2,7 @@ sleep 100
 sql connect
 sql use db
 
+$emptyString = @@
 print execute sql select concat(c8,*) from tb1;
 sql_error select concat(c8,*) from tb1;
 print execute sql select concat(c8,*) from tb1;
@@ -493,6 +494,9 @@ endi
 if $data60 != @678@ then
   return -1 
 endi
+if $data61 != $emptyString then
+  return -1 
+endi
 if $data62 != @678@ then
   return -1 
 endi

tests/script/general/compute/str_concat2.sim

@@ -2,6 +2,7 @@ sleep 100
 sql connect
 sql use db
 
+$emptyString = @@
 print execute sql select concat(stb1.c8,stb1.c14),pow(stba.c2,stba.c5) from stb1,stba where stb1.t1=stba.t1 and stb1.ts=stba.ts;
 sql select concat(stb1.c8,stb1.c14),pow(stba.c2,stba.c5) from stb1,stba where stb1.t1=stba.t1 and stb1.ts=stba.ts;
 if $data00 != @1231@ then
@@ -132,51 +133,47 @@ if $data00 != @c8135@ then
 endi
 print execute sql select concat('c8',cast(avg(c2) as binary(10))) from tba1;
 sql select concat('c8',cast(avg(c2) as binary(10))) from tba1;
-if $data00 != @c84.50@ then
+if $data00 != @c84.500000@ then
   return -1 
 endi
 print execute sql select concat('c8',cast(percentile(c2, 10) as binary(10))) from tba1;
 sql select concat('c8',cast(percentile(c2, 10) as binary(10))) from tba1;
-if $data00 != @c80.90@ then
+if $data00 != @c80.900000@ then
   return -1 
 endi
 print execute sql select concat('c8',cast(apercentile(c2, 10) as binary(10))) from tba1;
 sql select concat('c8',cast(apercentile(c2, 10) as binary(10))) from tba1;
-if $data00 != @c80.00@ then
+if $data00 != @c80.000000@ then
   return -1 
 endi
 print execute sql select concat('c8',cast(stddev(c2) as binary(10))) from tba1;
 sql select concat('c8',cast(stddev(c2) as binary(10))) from tba1;
-if $data00 != @c82.87@ then
+if $data00 != @c82.872281@ then
   return -1 
 endi
 print execute sql select concat('c8',cast(spread(c2) as binary(10))) from tba1;
 sql select concat('c8',cast(spread(c2) as binary(10))) from tba1;
-if $data00 != @c89.00@ then
+if $data00 != @c89.000000@ then
   return -1 
 endi
 print execute sql select concat('c8',cast(twa(c2) as binary(10))) from tba1;
 sql select concat('c8',cast(twa(c2) as binary(10))) from tba1;
-if $data00 != @c84.63@ then
+if $data00 != @c84.637931@ then
   return -1 
 endi
-print execute sql #select concat('c8',cast(interp(c2) as binary(10))) from tba1 every(1s)
-sql_error #select concat('c8',cast(interp(c2) as binary(10))) from tba1 every(1s)
-print execute sql #select concat('c8',cast(interp(c2) as binary(10))) from stba every(1s) group by tbname;
-sql_error #select concat('c8',cast(interp(c2) as binary(10))) from stba every(1s) group by tbname;
 print execute sql select concat('c8',cast(elapsed(ts) as binary(10))) from tba1;
 sql select concat('c8',cast(elapsed(ts) as binary(10))) from tba1;
-if $data00 != @c82900@ then
+if $data00 != @c829000.0000@ then
   return -1 
 endi
 print execute sql select concat('c8',cast(rate(c2) as binary(10))) from tba1;
 sql select concat('c8',cast(rate(c2) as binary(10))) from tba1;
-if $data00 != @c80.89@ then
+if $data00 != @c80.896552@ then
   return -1 
 endi
 print execute sql select concat('c8',cast(irate(c2) as binary(10))) from tba1;
 sql select concat('c8',cast(irate(c2) as binary(10))) from tba1;
-if $data00 != @c80.00@ then
+if $data00 != @c80.000000@ then
   return -1 
 endi
 print execute sql select concat('c8',cast(first(c2) as binary(10))) from tba1;

tests/script/general/compute/str_concat_ws2.sim

@@ -113,82 +113,82 @@ if $data90 != @000sepa0@ then
 endi
 print execute sql select concat_ws('sepa','c8',cast(min(c2) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(min(c2) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa0@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(max(c2) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(max(c2) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa9@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(count(c2) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(count(c2) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa30@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(sum(c2) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(sum(c2) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa135@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(avg(c2) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(avg(c2) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa4.500000@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(percentile(c2, 10) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(percentile(c2, 10) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa0.900000@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(apercentile(c2, 10) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(apercentile(c2, 10) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa0.000000@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(stddev(c2) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(stddev(c2) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa2.872281@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(spread(c2) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(spread(c2) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa9.000000@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(twa(c2) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(twa(c2) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa4.637931@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(elapsed(ts) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(elapsed(ts) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa29000.0000@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(rate(c2) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(rate(c2) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa0.896552@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(irate(c2) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(irate(c2) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa0.000000@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(first(c2) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(first(c2) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa1@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(last(c2) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(last(c2) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa0@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(last_row(c2) as binary(10))) from tba1;
 sql select concat_ws('sepa','c8',cast(last_row(c2) as binary(10))) from tba1;
-if $data00 != @c8sepa@ then
+if $data00 != @c8sepa0@ then
   return -1 
 endi
 print execute sql select concat_ws('sepa','c8',cast(top(c2, 1) as binary(10))) from tba1;