MDEV-35082 HANDLER with FULLTEXT keys is not always rejected

need to check for index capabilities also for HANDLER READ NEXT

mysql-test/suite/handler/interface.result

@@ -338,9 +338,9 @@ CREATE TABLE t1 (g GEOMETRY NOT NULL, SPATIAL gi(g));
 INSERT INTO t1 VALUES (POINT(0,0));
 HANDLER t1 OPEN AS h;
 HANDLER h READ `gi`= (10);
-ERROR HY000: SPATIAL index `gi` does not support this operation
+ERROR 22003: Cannot get geometry object from data you send to the GEOMETRY field
 HANDLER h READ `gi`> (10);
-ERROR HY000: SPATIAL index `gi` does not support this operation
+ERROR 22003: Cannot get geometry object from data you send to the GEOMETRY field
 HANDLER h CLOSE;
 DROP TABLE t1;
 CREATE TABLE t1 (w VARCHAR(100), FULLTEXT fk(w));
@@ -352,3 +352,12 @@ HANDLER h READ `fk`> (10);
 ERROR HY000: FULLTEXT index `fk` does not support this operation
 HANDLER h CLOSE;
 DROP TABLE t1;
+#
+# MDEV-35082 HANDLER with FULLTEXT keys is not always rejected
+#
+create table t (a int primary key, v text not null, fulltext(v));
+handler t open;
+handler t read v next;
+ERROR HY000: FULLTEXT index `v` does not support this operation
+drop table t;
+# End of 10.5 tests

mysql-test/suite/handler/interface.test

@@ -385,9 +385,9 @@ DROP TABLE t1;
 CREATE TABLE t1 (g GEOMETRY NOT NULL, SPATIAL gi(g));
 INSERT INTO t1 VALUES (POINT(0,0));
 HANDLER t1 OPEN AS h;
---error ER_KEY_DOESNT_SUPPORT
+--error ER_CANT_CREATE_GEOMETRY_OBJECT
 HANDLER h READ `gi`= (10);
---error ER_KEY_DOESNT_SUPPORT
+--error ER_CANT_CREATE_GEOMETRY_OBJECT
 HANDLER h READ `gi`> (10);
 HANDLER h CLOSE;
 DROP TABLE t1;
@@ -401,3 +401,14 @@ HANDLER h READ `fk`= (10);
 HANDLER h READ `fk`> (10);
 HANDLER h CLOSE;
 DROP TABLE t1;
+
+--echo #
+--echo # MDEV-35082 HANDLER with FULLTEXT keys is not always rejected
+--echo #
+create table t (a int primary key, v text not null, fulltext(v));
+handler t open;
+--error ER_KEY_DOESNT_SUPPORT
+handler t read v next;
+drop table t;
+
+--echo # End of 10.5 tests

mysql-test/suite/innodb_fts/r/innodb_fts_misc.result

@@ -1188,9 +1188,9 @@ DROP TABLE t;
 CREATE TABLE t(a CHAR(1),FULLTEXT KEY(a)) ENGINE=INNODB;
 HANDLER t OPEN;
 HANDLER t READ a NEXT;
-a
+ERROR HY000: FULLTEXT index `a` does not support this operation
 HANDLER t READ a PREV;
-a
+ERROR HY000: FULLTEXT index `a` does not support this operation
 DROP TABLE t;
 CREATE TABLE `%`(a TEXT, FULLTEXT INDEX(a)) ENGINE=INNODB;
 CREATE TABLE `A B`(a TEXT, FULLTEXT INDEX(a)) ENGINE=INNODB;

mysql-test/suite/innodb_fts/r/misc.result

@@ -1183,9 +1183,9 @@ DROP TABLE t;
 CREATE TABLE t(a CHAR(1),FULLTEXT KEY(a)) ENGINE=INNODB;
 HANDLER t OPEN;
 HANDLER t READ a NEXT;
-a
+ERROR HY000: FULLTEXT index `a` does not support this operation
 HANDLER t READ a PREV;
-a
+ERROR HY000: FULLTEXT index `a` does not support this operation
 DROP TABLE t;
 CREATE TABLE `%`(a TEXT, FULLTEXT INDEX(a)) ENGINE=INNODB;
 CREATE TABLE `A B`(a TEXT, FULLTEXT INDEX(a)) ENGINE=INNODB;

mysql-test/suite/innodb_fts/t/innodb_fts_misc.test

@@ -1155,7 +1155,9 @@ DROP TABLE t;
 # InnoDB FTS does not support index scan from handler
 CREATE TABLE t(a CHAR(1),FULLTEXT KEY(a)) ENGINE=INNODB;
 HANDLER t OPEN;
+--error ER_KEY_DOESNT_SUPPORT
 HANDLER t READ a NEXT;
+--error ER_KEY_DOESNT_SUPPORT
 HANDLER t READ a PREV;
 DROP TABLE t;
 

mysql-test/suite/innodb_fts/t/misc.test

@@ -1148,7 +1148,9 @@ DROP TABLE t;
 # InnoDB FTS does not support index scan from handler
 CREATE TABLE t(a CHAR(1),FULLTEXT KEY(a)) ENGINE=INNODB;
 HANDLER t OPEN;
+--error ER_KEY_DOESNT_SUPPORT
 HANDLER t READ a NEXT;
+--error ER_KEY_DOESNT_SUPPORT
 HANDLER t READ a PREV;
 DROP TABLE t;
 

sql/sql_handler.cc

@@ -647,28 +647,26 @@ mysql_ha_fix_cond_and_key(SQL_HANDLER *handler,
       }
     }
 
+    const KEY *c_key= table->s->key_info + handler->keyno;
+    if (c_key->algorithm == HA_KEY_ALG_FULLTEXT ||
+        (ha_rkey_mode != HA_READ_KEY_EXACT &&
+         (table->file->index_flags(handler->keyno, 0, TRUE) &
+          (HA_READ_NEXT | HA_READ_PREV | HA_READ_RANGE)) == 0))
+    {
+      my_error(ER_KEY_DOESNT_SUPPORT, MYF(0),
+               table->file->index_type(handler->keyno), c_key->name.str);
+      return 1;
+    }
+
     /* Check key parts */
     if (mode == RKEY)
     {
-      TABLE *table= handler->table;
       KEY *keyinfo= table->key_info + handler->keyno;
       KEY_PART_INFO *key_part= keyinfo->key_part;
       List_iterator<Item> it_ke(*key_expr);
       Item *item;
       key_part_map keypart_map;
       uint key_len;
-      const KEY *c_key= table->s->key_info + handler->keyno;
-
-      if ((c_key->flags & HA_SPATIAL) ||
-           c_key->algorithm == HA_KEY_ALG_FULLTEXT ||
-          (ha_rkey_mode != HA_READ_KEY_EXACT &&
-           (table->file->index_flags(handler->keyno, 0, TRUE) &
-            (HA_READ_NEXT | HA_READ_PREV | HA_READ_RANGE)) == 0))
-      {
-        my_error(ER_KEY_DOESNT_SUPPORT, MYF(0),
-                 table->file->index_type(handler->keyno), keyinfo->name.str);
-        return 1;
-      }
 
       if (key_expr->elements > keyinfo->user_defined_key_parts)
       {