MDEV-19525 remove ER_VERS_FIELD_WRONG_TYPE from init_from_binary_frm_image()

Throw ER_NOT_FORM_FILE if this is wrong FRM data (warning with
ER_VERS_FIELD_WRONG_TYPE is still printed for deeper knowledge of what
was happened).

Keep ER_VERS_FIELD_WRONG_TYPE for creating partitioned table with
trx-versioning. Tested by MDEV-15951 in trx_id.test

mysql-test/suite/versioning/r/debug.result

@@ -50,5 +50,17 @@ t4	CREATE TABLE `t4` (
   `row_end` timestamp(6) GENERATED ALWAYS AS ROW END,
   PERIOD FOR SYSTEM_TIME (`row_start`, `row_end`)
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING
-set global debug_dbug=@old_dbug;
 drop table t1, t2, t3, t4;
+#
+# MDEV-19525 remove ER_VERS_FIELD_WRONG_TYPE from init_from_binary_frm_image()
+#
+create table t1 (x int) with system versioning;
+set debug_dbug='+d,error_vers_wrong_type';
+show create table t1;
+ERROR HY000: Incorrect information in file: './test/t1.frm'
+show warnings;
+Level	Code	Message
+Warning	4110	`row_start` must be of type TIMESTAMP(6) for system-versioned table `t1`
+Error	1033	Incorrect information in file: './test/t1.frm'
+drop table t1;
+set global debug_dbug=@old_dbug;

mysql-test/suite/versioning/t/debug.test

@@ -30,6 +30,17 @@ set debug_dbug='+d,sysvers_show';
 show create table t3;
 create table t4 (a int);
 show create table t4;
+drop table t1, t2, t3, t4;
+
 
+--echo #
+--echo # MDEV-19525 remove ER_VERS_FIELD_WRONG_TYPE from init_from_binary_frm_image()
+--echo #
+create table t1 (x int) with system versioning;
+set debug_dbug='+d,error_vers_wrong_type';
+--replace_result $MYSQLTEST_VARDIR . master-data// '' '\\' '/'
+--error ER_NOT_FORM_FILE
+show create table t1;
+show warnings;
+drop table t1;
 set global debug_dbug=@old_dbug;
-drop table t1, t2, t3, t4;

sql/table.cc

@@ -2082,6 +2082,9 @@ int TABLE_SHARE::init_from_binary_frm_image(THD *thd, bool write,
 
       if (flags & VERS_SYSTEM_FIELD)
       {
+        if (DBUG_EVALUATE_IF("error_vers_wrong_type", 1, 0))
+          field_type= MYSQL_TYPE_BLOB;
+
         switch (field_type)
         {
         case MYSQL_TYPE_TIMESTAMP2:
@@ -2094,8 +2097,12 @@ int TABLE_SHARE::init_from_binary_frm_image(THD *thd, bool write,
           }
           /* Fallthrough */
         default:
-          my_error(ER_VERS_FIELD_WRONG_TYPE, MYF(0), fieldnames.type_names[i],
-            versioned == VERS_TIMESTAMP ? "TIMESTAMP(6)" : "BIGINT(20) UNSIGNED",
+          my_error(ER_VERS_FIELD_WRONG_TYPE,
+                   (field_type == MYSQL_TYPE_LONGLONG ?
+                    MYF(0) : MYF(ME_WARNING)),
+                   fieldnames.type_names[i],
+                   (versioned == VERS_TIMESTAMP ?
+                    "TIMESTAMP(6)" : "BIGINT(20) UNSIGNED"),
                    table_name.str);
           goto err;
         }