MDEV-25229 SON_TABLE: Server crashes in hton_name upon MATCH .. AGAINST.

No plugin for the JSON_TABLE so get the storage type name directly.

mysql-test/suite/json/r/json_table.result

@@ -554,5 +554,10 @@ View	Create View	character_set_client	collation_connection
 v	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v` AS select `jt`.`o` AS `o` from JSON_TABLE('{}', '$' COLUMNS (NESTED PATH '$.*' COLUMNS (NESTED PATH '$.*' COLUMNS (`o` FOR ORDINALITY)))) `jt`	latin1	latin1_swedish_ci
 DROP VIEW v;
 #
+# MDEV-25229 JSON_TABLE: Server crashes in hton_name upon MATCH .. AGAINST.
+#
+SELECT val, MATCH(val) AGAINST( 'MariaDB') FROM JSON_TABLE('{"db":"xx"}', '$' COLUMNS(val VARCHAR(32) PATH '$**.*')) AS jt;
+ERROR HY000: The storage engine JSON_TABLE function doesn't support FULLTEXT indexes
+#
 # End of 10.6 tests
 #

mysql-test/suite/json/t/json_table.test

@@ -430,6 +430,13 @@ SELECT * FROM v;
 SHOW CREATE VIEW v;
 DROP VIEW v;
 
+--echo #
+--echo # MDEV-25229 JSON_TABLE: Server crashes in hton_name upon MATCH .. AGAINST.
+--echo #
+
+--error ER_TABLE_CANT_HANDLE_FT
+SELECT val, MATCH(val) AGAINST( 'MariaDB') FROM JSON_TABLE('{"db":"xx"}', '$' COLUMNS(val VARCHAR(32) PATH '$**.*')) AS jt;
+
 --echo #
 --echo # End of 10.6 tests
 --echo #

sql/handler.h

@@ -4154,7 +4154,7 @@ class handler :public Sql_alloc
   { return; }       /* prepare InnoDB for HANDLER */
   virtual void free_foreign_key_create_info(char* str) {}
   /** The following can be called without an open handler */
-  const char *table_type() const { return hton_name(ht)->str; }
+  virtual const char *table_type() const { return hton_name(ht)->str; }
   const char **bas_ext() const { return ht->tablefile_extensions; }
 
   virtual int get_default_no_partitions(HA_CREATE_INFO *create_info)

sql/json_table.cc

@@ -73,6 +73,10 @@ class ha_json_table: public handler
   handler *clone(const char *name, MEM_ROOT *mem_root) override { return NULL; }
   /* Rows also use a fixed-size format */
   enum row_type get_row_type() const override { return ROW_TYPE_FIXED; }
+  const char *table_type() const override
+  {
+    return "JSON_TABLE function";
+  }
   ulonglong table_flags() const override
   {
     return (HA_FAST_KEY_READ | /*HA_NO_BLOBS |*/ HA_NULL_IN_KEY |