Use common function 'append_field' to output the value of one field to the result.

Fix for extra zero in exponent of double values on windows.


client/mysqltest.c:
  Write new function 'append_field' which takes care of appending one field to the dynamic string.
  Use function 'append_field' from both ps and normal execution
  Add hack to 'append_field' that removes the extra '0' in exponent for double values on Windows.
mysql-test/r/type_float.result:
  One zero too much was removed( I think )
mysql-test/t/insert.test:
  Remove the "replace_result" for extra zero in  exponent
mysql-test/t/type_float.test:
  Remove the "replace_result" for extra zero in  exponent
mysql-test/t/variables.test:
  Remove the "replace_result" for extra zero in  exponent

client/mysqltest.c

@@ -3039,6 +3039,58 @@ static void replace_dynstr_append(DYNAMIC_STRING *ds, const char *val)
 }
 
 
+/*
+  Append the result for one field to the dynamic string ds
+*/
+
+static void append_field(DYNAMIC_STRING *ds, uint col_idx, MYSQL_FIELD* field,
+                         const char* val, ulonglong len, bool is_null)
+{
+
+  char buf[256];
+  if (col_idx < max_replace_column && replace_column[col_idx])
+  {
+    val= replace_column[col_idx];
+    len= strlen(val);
+  }
+  else if (is_null)
+  {
+    val= "NULL";
+    len= 4;
+  }
+#ifdef __WIN__
+  else if (field->type == MYSQL_TYPE_DOUBLE &&
+           field->decimals >= 31)
+  {
+    /* Convert 1.2e+018 to 1.2e+18 and 1.2e-018 to 1.2e-18 */
+    char *start= strchr(val, 'e');
+    if (start && strlen(start) >= 5 &&
+        (start[1] == '-' || start[1] == '+') && start[2] == '0')
+    {
+      start+=2; /* Now points at first '0' */
+      /* Move all chars after the first '0' one step left */
+      memmove(start, start + 1, strlen(start));
+      len--;
+    }
+  }
+#endif
+
+  if (!display_result_vertically)
+  {
+    if (col_idx)
+      dynstr_append_mem(ds, "\t", 1);
+    replace_dynstr_append_mem(ds, val, (int)len);
+  }
+  else
+  {
+    dynstr_append(ds, field->name);
+    dynstr_append_mem(ds, "\t", 1);
+    replace_dynstr_append_mem(ds, val, (int)len);
+    dynstr_append_mem(ds, "\n", 1);
+  }
+}
+
+
 /*
   Append all results to the dynamic string separated with '\t'
   Values may be converted with 'replace_column'
@@ -3048,41 +3100,16 @@ static void append_result(DYNAMIC_STRING *ds, MYSQL_RES *res)
 {
   MYSQL_ROW row;
   uint num_fields= mysql_num_fields(res);
-  MYSQL_FIELD *fields= !display_result_vertically ? 0 : mysql_fetch_fields(res);
+  MYSQL_FIELD *fields= mysql_fetch_fields(res);
   ulong *lengths;
+
   while ((row = mysql_fetch_row(res)))
   {
     uint i;
     lengths = mysql_fetch_lengths(res);
     for (i = 0; i < num_fields; i++)
-    {
-      const char *val= row[i];
-      ulonglong len= lengths[i];
-
-      if (i < max_replace_column && replace_column[i])
-      {
-	val= replace_column[i];
-	len= strlen(val);
-      }
-      if (!val)
-      {
-	val= "NULL";
-	len= 4;
-      }
-      if (!display_result_vertically)
-      {
-	if (i)
-	  dynstr_append_mem(ds, "\t", 1);
-	replace_dynstr_append_mem(ds, val, (int)len);
-      }
-      else
-      {
-	dynstr_append(ds, fields[i].name);
-	dynstr_append_mem(ds, "\t", 1);
-	replace_dynstr_append_mem(ds, val, (int)len);
-	dynstr_append_mem(ds, "\n", 1);
-      }
-    }
+      append_field(ds, i, &fields[i],
+                   (const char*)row[i], lengths[i], !row[i]);
     if (!display_result_vertically)
       dynstr_append_mem(ds, "\n", 1);
   }
@@ -3096,13 +3123,12 @@ static void append_result(DYNAMIC_STRING *ds, MYSQL_RES *res)
 */
 
 static void append_stmt_result(DYNAMIC_STRING *ds, MYSQL_STMT *stmt,
-			       MYSQL_FIELD *field, uint num_fields)
+                               MYSQL_FIELD *fields, uint num_fields)
 {
   MYSQL_BIND *bind;
   my_bool *is_null;
   ulong *length;
-  ulonglong num_rows;
-  uint col_idx, row_idx;
+  uint i;
 
   /* Allocate array with bind structs, lengths and NULL flags */
   bind= (MYSQL_BIND*) my_malloc(num_fields * sizeof(MYSQL_BIND),
@@ -3112,71 +3138,29 @@ static void append_stmt_result(DYNAMIC_STRING *ds, MYSQL_STMT *stmt,
   is_null= (my_bool*) my_malloc(num_fields * sizeof(my_bool),
 				MYF(MY_WME | MY_FAE));
 
-  for (col_idx= 0; col_idx < num_fields; col_idx++)
+  /* Allocate data for the result of each field */
+  for (i= 0; i < num_fields; i++)
   {
-    /* Allocate data for output */
-    uint max_length= field[col_idx].max_length + 1;
-    char *str_data= (char *) my_malloc(max_length, MYF(MY_WME | MY_FAE));
-
-    bind[col_idx].buffer_type= MYSQL_TYPE_STRING;
-    bind[col_idx].buffer= (char *)str_data;
-    bind[col_idx].buffer_length= max_length;
-    bind[col_idx].is_null= &is_null[col_idx];
-    bind[col_idx].length= &length[col_idx];
+    uint max_length= fields[i].max_length + 1;
+    bind[i].buffer_type= MYSQL_TYPE_STRING;
+    bind[i].buffer= (char *)my_malloc(max_length, MYF(MY_WME | MY_FAE));
+    bind[i].buffer_length= max_length;
+    bind[i].is_null= &is_null[i];
+    bind[i].length= &length[i];
 
     DBUG_PRINT("bind", ("col[%d]: buffer_type: %d, buffer_length: %d",
-			col_idx,
-			bind[col_idx].buffer_type,
-			bind[col_idx].buffer_length));
+			i, bind[i].buffer_type, bind[i].buffer_length));
   }
 
-  /* Fill in the data into the structures created above */
   if (mysql_stmt_bind_result(stmt, bind))
     die("mysql_stmt_bind_result failed: %d: %s",
 	mysql_stmt_errno(stmt), mysql_stmt_error(stmt));
 
-  /* Read result from each row */
-  num_rows= mysql_stmt_num_rows(stmt);
-  for (row_idx= 0; row_idx < num_rows; row_idx++)
+  while (mysql_stmt_fetch(stmt) == 0)
   {
-    if (mysql_stmt_fetch(stmt))
-      die("mysql_stmt_fetch failed: %d %s",
-	  mysql_stmt_errno(stmt), mysql_stmt_error(stmt));
-
-    /* Read result from each column */
-    for (col_idx= 0; col_idx < num_fields; col_idx++)
-    {
-      const char *val;
-      ulonglong len;
-      if (col_idx < max_replace_column && replace_column[col_idx])
-      {
-	val= replace_column[col_idx];
-	len= strlen(val);
-      }
-      else if (*bind[col_idx].is_null)
-      {
-	val= "NULL";
-	len= 4;
-      }
-      else
-      {
-	val= (const char *) bind[col_idx].buffer;
-	len= *bind[col_idx].length;
-      }
-      if (!display_result_vertically)
-      {
-	if (col_idx)                      /* No tab before first col */
-	  dynstr_append_mem(ds, "\t", 1);
-	replace_dynstr_append_mem(ds, val, (int)len);
-      }
-      else
-      {
-	dynstr_append(ds, field[col_idx].name);
-	dynstr_append_mem(ds, "\t", 1);
-	replace_dynstr_append_mem(ds, val, (int)len);
-	dynstr_append_mem(ds, "\n", 1);
-      }
-    }
+    for (i= 0; i < num_fields; i++)
+      append_field(ds, i, &fields[i], (const char *) bind[i].buffer,
+                   *bind[i].length, *bind[i].is_null);
     if (!display_result_vertically)
       dynstr_append_mem(ds, "\n", 1);
   }
@@ -3187,10 +3171,10 @@ static void append_stmt_result(DYNAMIC_STRING *ds, MYSQL_STMT *stmt,
 
   free_replace_column();
 
-  for (col_idx= 0; col_idx < num_fields; col_idx++)
+  for (i= 0; i < num_fields; i++)
   {
     /* Free data for output */
-    my_free((gptr)bind[col_idx].buffer, MYF(MY_WME | MY_FAE));
+    my_free((gptr)bind[i].buffer, MYF(MY_WME | MY_FAE));
   }
   /* Free array with bind structs, lengths and NULL flags */
   my_free((gptr)bind    , MYF(MY_WME | MY_FAE));

mysql-test/r/type_float.result

@@ -31,14 +31,14 @@ select * from t1;
 f1	f2
 10	10
 100000	100000
-1.23457e+9	1234567890
+1.23457e+09	1234567890
 1e+10	10000000000
 1e+15	1e+15
 1e+20	1e+20
 3.40282e+38	1e+50
 3.40282e+38	1e+150
 -10	-10
-1e-5	1e-5
+1e-05	1e-05
 1e-10	1e-10
 1e-15	1e-15
 1e-20	1e-20

mysql-test/t/insert.test

@@ -99,27 +99,22 @@ create table t1(number int auto_increment primary key, original_value varchar(50
 
 set @value= "aa";
 insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
---replace_result e-0 e- e+0 e+
 --query_vertical select * from t1 where number =last_insert_id()
 
 set @value= "1aa";
 insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
---replace_result e-0 e- e+0 e+
 --query_vertical select * from t1 where number =last_insert_id()
 
 set @value= "aa1";
 insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
---replace_result e-0 e- e+0 e+
 --query_vertical select * from t1 where number =last_insert_id()
 
 set @value= "1e+1111111111a";
 insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
---replace_result e-0 e- e+0 e+
 --query_vertical select * from t1 where number =last_insert_id()
 
 set @value= "-1e+1111111111a";
 insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
---replace_result e-0 e- e+0 e+
 --query_vertical select * from t1 where number =last_insert_id()
 
 --error 1367
@@ -130,22 +125,18 @@ set @value= -1e+1111111111;
 
 set @value= 1e+111;
 insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
---replace_result e-0 e- e+0 e+
 --query_vertical select * from t1 where number =last_insert_id()
 
 set @value= -1e+111;
 insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
---replace_result e-0 e- e+0 e+
 --query_vertical select * from t1 where number =last_insert_id()
 
 set @value= 1;
 insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
---replace_result e-0 e- e+0 e+
 --query_vertical select * from t1 where number =last_insert_id()
 
 set @value= -1;
 insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
---replace_result e-0 e- e+0 e+
 --query_vertical select * from t1 where number =last_insert_id()
 
 drop table t1;

mysql-test/t/type_float.test

@@ -6,9 +6,7 @@
 drop table if exists t1,t2;
 --enable_warnings
 
---replace_result e-0 e- e+0 e+
 SELECT 10,10.0,10.,.1e+2,100.0e-1;
---replace_result e-00 e-0 
 SELECT 6e-05, -6e-05, --6e-05, -6e-05+1.000000;
 SELECT 1e1,1.e1,1.0e1,1e+1,1.e+1,1.0e+1,1e-1,1.e-1,1.0e-1;
 SELECT 0.001e+1,0.001e-1, -0.001e+01,-0.001e-01;
@@ -21,7 +19,6 @@ create table t1 (f1 float(24),f2 float(52));
 show full columns from t1;
 insert into t1 values(10,10),(1e+5,1e+5),(1234567890,1234567890),(1e+10,1e+10),(1e+15,1e+15),(1e+20,1e+20),(1e+50,1e+50),(1e+150,1e+150);
 insert into t1 values(-10,-10),(1e-5,1e-5),(1e-10,1e-10),(1e-15,1e-15),(1e-20,1e-20),(1e-50,1e-50),(1e-150,1e-150);
---replace_result e-0 e- e+0 e+
 select * from t1;
 drop table t1;
 

mysql-test/t/variables.test

@@ -20,7 +20,6 @@ select @test, @`test`, @TEST, @`TEST`, @"teSt";
 set @select=2,@t5=1.23456;
 select @`select`,@not_used;
 set @test_int=10,@test_double=1e-10,@test_string="abcdeghi",@test_string2="abcdefghij",@select=NULL;
---replace_result e-0 e- e+0 e+
 select @test_int,@test_double,@test_string,@test_string2,@select;
 set @test_int="hello",@test_double="hello",@test_string="hello",@test_string2="hello";
 select @test_int,@test_double,@test_string,@test_string2;