* frm extra2 segment.

* persistent table versions in the extra2
* ha_archive::frm_compare using TABLE_SHARE::tabledef_version
* distinguish between "important" and "optional" extra2 frm values
* write engine-defined attributes (aka "table options") to extra2, not to extra,
  but still read from the old location, if they're found there.

include/my_base.h

@@ -318,7 +318,7 @@ enum ha_base_keytype {
 #define HA_OPTION_NULL_FIELDS		1024
 #define HA_OPTION_PAGE_CHECKSUM		2048
 /* .frm has extra create options in linked-list format */
-#define HA_OPTION_TEXT_CREATE_OPTIONS   (1L << 14)
+#define HA_OPTION_TEXT_CREATE_OPTIONS_legacy (1L << 14) /* 5.2 to 5.5, unused since 10.0 */
 #define HA_OPTION_TEMP_COMPRESS_RECORD  (1L << 15)      /* set by isamchk */
 #define HA_OPTION_READ_ONLY_DATA        (1L << 16)      /* Set by isamchk */
 #define HA_OPTION_NO_CHECKSUM           (1L << 17)

mysql-test/suite/archive/archive.result

@@ -12701,12 +12701,12 @@ CREATE TABLE t1(a INT, b BLOB) ENGINE=archive;
 SELECT DATA_LENGTH, AVG_ROW_LENGTH FROM
 INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='t1' AND TABLE_SCHEMA='test';
 DATA_LENGTH	AVG_ROW_LENGTH
-535	15
+550	15
 INSERT INTO t1 VALUES(1, 'sampleblob1'),(2, 'sampleblob2');
 SELECT DATA_LENGTH, AVG_ROW_LENGTH FROM
 INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='t1' AND TABLE_SCHEMA='test';
 DATA_LENGTH	AVG_ROW_LENGTH
-569	284
+584	292
 DROP TABLE t1;
 SET @save_join_buffer_size= @@join_buffer_size;
 SET @@join_buffer_size= 8192;
@@ -12818,10 +12818,11 @@ select * from t1;
 a	b
 flush tables;
 select * from t1;
-a	b
-1	aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
+ERROR HY000: Table 't1' is marked as crashed and should be repaired
 show warnings;
 Level	Code	Message
+Warning	127	Got error 127 when reading table `test`.`t1`
+Error	1194	Table 't1' is marked as crashed and should be repaired
 drop table t1;
 create temporary table t1 (a int) engine=archive;
 insert t1 values (1),(2),(3);

mysql-test/suite/archive/archive.test

@@ -1738,7 +1738,7 @@ select * from t1; # open the table to create the frm
 flush tables;     # and close the table again
 --remove_file $MYSQLD_DATADIR/test/t1.ARZ
 copy_file std_data/t917689.ARZ $MYSQLD_DATADIR/test/t1.ARZ;
-#--error ER_CRASHED_ON_USAGE
+--error ER_CRASHED_ON_USAGE
 select * from t1;
 show warnings;
 drop table t1;

mysql-test/suite/archive/discover.result

@@ -17,6 +17,8 @@ select * from t1;
 a
 1
 2
+t1.ARZ
+t1.frm
 #
 # show tables
 #
@@ -28,10 +30,9 @@ show tables;
 Tables_in_test
 t1
 t2
-select * from t1;
-a
-1
-2
+t1.ARZ
+t2.ARZ
+t2.frm
 #
 # show full tables
 #
@@ -40,29 +41,27 @@ show full tables;
 Tables_in_test	Table_type
 t1	BASE TABLE
 t2	BASE TABLE
-select * from t1;
-a
-1
-2
+t1.ARZ
+t2.ARZ
+t2.frm
 #
 # discover on truncate
 #
 flush tables;
 truncate table t1;
 ERROR HY000: Table storage engine for 't1' doesn't have this option
-show tables;
-Tables_in_test
-t1
-t2
+t1.ARZ
+t1.frm
+t2.ARZ
+t2.frm
 #
 # discover on rename
 #
 flush tables;
 rename table t2 to t0;
-show tables;
-Tables_in_test
-t0
-t1
+t0.ARZ
+t1.ARZ
+t1.frm
 #
 # discover on HA_ERR_TABLE_DEF_CHANGED
 #
@@ -77,9 +76,7 @@ t1	CREATE TABLE `t1` (
 #
 flush tables;
 drop table t1;
-show tables;
-Tables_in_test
-t0
+t0.ARZ
 #
 # discover of table non-existance on drop
 #
@@ -89,6 +86,9 @@ flush tables;
 select * from t1;
 ERROR 42S02: Table 'test.t1' doesn't exist
 drop table t0;
+show status like 'Handler_discover';
+Variable_name	Value
+Handler_discover	7
 #
 # Bug#45377: ARCHIVE tables aren't discoverable after OPTIMIZE
 #

mysql-test/suite/archive/discover.test

@@ -13,6 +13,7 @@ remove_file $mysqld_datadir/test/t1.frm;
 flush tables;
 insert t1 values (2);
 select * from t1;
+--list_files $mysqld_datadir/test
 
 --echo #
 --echo # show tables
@@ -22,24 +23,22 @@ select * from t2;
 remove_file $mysqld_datadir/test/t1.frm;
 flush tables;
 show tables;
-select * from t1;
+--list_files $mysqld_datadir/test
 
 --echo #
 --echo # show full tables
 --echo #
-remove_file $mysqld_datadir/test/t1.frm;
 flush tables;
 show full tables;
-select * from t1;
+--list_files $mysqld_datadir/test
 
 --echo #
 --echo # discover on truncate
 --echo #
-remove_file $mysqld_datadir/test/t1.frm;
 flush tables;
 --error ER_ILLEGAL_HA
 truncate table t1;
-show tables;
+--list_files $mysqld_datadir/test
 
 --echo #
 --echo # discover on rename
@@ -47,7 +46,7 @@ show tables;
 remove_file $mysqld_datadir/test/t2.frm;
 flush tables;
 rename table t2 to t0;
-show tables;
+--list_files $mysqld_datadir/test
 
 --echo #
 --echo # discover on HA_ERR_TABLE_DEF_CHANGED
@@ -63,7 +62,7 @@ show create table t1;
 remove_file $mysqld_datadir/test/t1.frm;
 flush tables;
 drop table t1;
-show tables;
+--list_files $mysqld_datadir/test
 
 --echo #
 --echo # discover of table non-existance on drop
@@ -74,6 +73,8 @@ flush tables;
 --error ER_NO_SUCH_TABLE
 select * from t1;
 drop table t0;
+--list_files $mysqld_datadir/test
+show status like 'Handler_discover';
 
 --echo #
 --echo # Bug#45377: ARCHIVE tables aren't discoverable after OPTIMIZE

mysql-test/suite/archive/partition_archive.result

@@ -15,10 +15,10 @@ ENGINE = ARCHIVE;
 INSERT INTO t1 VALUES(CURRENT_DATE);
 SELECT DATA_LENGTH, INDEX_LENGTH FROM information_schema.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
 DATA_LENGTH	INDEX_LENGTH
-520	0
+535	0
 SELECT DATA_LENGTH, INDEX_LENGTH FROM information_schema.TABLES WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
 DATA_LENGTH	INDEX_LENGTH
-520	0
+535	0
 DROP TABLE t1;
 drop database if exists db99;
 drop table if exists t1;

mysys/my_uuid.c

@@ -123,7 +123,7 @@ void my_uuid_init(ulong seed1, ulong seed2)
    Create a global unique identifier (uuid)
 
    @func  my_uuid()
-   @param to   Store uuid here. Must be of size MY_uuid_SIZE (16)
+   @param to   Store uuid here. Must be of size MY_UUID_SIZE (16)
 */
 
 void my_uuid(uchar *to)

sql/handler.h

@@ -1360,6 +1360,7 @@ enum ha_choice { HA_CHOICE_UNDEF, HA_CHOICE_NO, HA_CHOICE_YES };
 struct HA_CREATE_INFO
 {
   CHARSET_INFO *table_charset, *default_table_charset;
+  LEX_CUSTRING tabledef_version;
   LEX_STRING connect_string;
   const char *password, *tablespace;
   LEX_STRING comment;
@@ -1393,6 +1394,7 @@ struct HA_CREATE_INFO
   enum ha_storage_media storage_media;  ///< DEFAULT, DISK or MEMORY
   enum ha_choice page_checksum;         ///< If we have page_checksums
   engine_option_value *option_list;     ///< list of table create options
+
   /* the following three are only for ALTER TABLE, check_if_incompatible_data() */
   ha_table_option_struct *option_struct;           ///< structure with parsed table options
   ha_field_option_struct **fields_option_struct;   ///< array of field option structures

sql/table.cc

 /*
    Copyright (c) 2000, 2011, Oracle and/or its affiliates.
-   Copyright (c) 2008-2011 Monty Program Ab
+   Copyright (c) 2008, 2013, Monty Program Ab
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -706,7 +706,7 @@ int TABLE_SHARE::init_from_binary_frm_image(THD *thd, bool write,
   uint i,j;
   bool use_hash;
   char *keynames, *names, *comment_pos;
-  const uchar *forminfo;
+  const uchar *forminfo, *extra2;
   const uchar *frm_image_end = frm_image + frm_length;
   uchar *record, *null_flags, *null_pos;
   const uchar *disk_buff, *strpos;
@@ -723,7 +723,7 @@ int TABLE_SHARE::init_from_binary_frm_image(THD *thd, bool write,
   bool null_bits_are_used;
   uint vcol_screen_length, UNINIT_VAR(options_len);
   char *vcol_screen_pos;
-  const uchar *UNINIT_VAR(options);
+  const uchar *options= 0;
   KEY first_keyinfo;
   uint len;
   KEY_PART_INFO *first_key_part= NULL;
@@ -749,8 +749,60 @@ int TABLE_SHARE::init_from_binary_frm_image(THD *thd, bool write,
   new_frm_ver= (frm_image[2] - FRM_VER);
   field_pack_length= new_frm_ver < 2 ? 11 : 17;
 
-  /* Position of the form in the form file. */
+  /* Length of the MariaDB extra2 segment in the form file. */
   len = uint2korr(frm_image+4);
+  extra2= frm_image + 64;
+
+  if (*extra2 != '/')   // old frm had '/' there
+  {
+    const uchar *e2end= extra2 + len;
+    while (extra2 < e2end)
+    {
+      uchar type= *extra2++;
+      size_t length= *extra2++;
+      if (!length)
+      {
+        length= uint2korr(extra2);
+        extra2+=2;
+        if (length < 256)
+          goto err;
+      }
+      switch (type) {
+      case EXTRA2_TABLEDEF_VERSION:
+        if (tabledef_version.str) // see init_from_sql_statement_string()
+        {
+          if (length != tabledef_version.length ||
+              memcmp(extra2, tabledef_version.str, length))
+            goto err;
+        }
+        else
+        {
+          uchar *buf= (uchar*) alloc_root(&mem_root, length);
+          if (!buf)
+            goto err;
+          memcpy(buf, extra2, length);
+          tabledef_version.str= buf;
+          tabledef_version.length= length;
+        }
+        break;
+      case EXTRA2_ENGINE_TABLEOPTS:
+        if (options)
+          goto err;
+        /* remember but delay parsing until we have read fields and keys */
+        options= extra2;
+        options_len= length;
+        break;
+      default:
+        /* abort frm parsing if it's an unknown but important extra2 value */
+        if (type >= 128)
+          goto err;
+      }
+      extra2+= length;
+    }
+    if (extra2 > e2end)
+      goto err;
+  }
+
   if (frm_length < FRM_HEADER_SIZE + len ||
       !(pos= uint4korr(frm_image + FRM_HEADER_SIZE + len)))
     goto err;
@@ -1169,12 +1221,10 @@ int TABLE_SHARE::init_from_binary_frm_image(THD *thd, bool write,
 
     DBUG_ASSERT(next_chunk <= buff_end);
 
-    if (share->db_create_options & HA_OPTION_TEXT_CREATE_OPTIONS)
+    if (share->db_create_options & HA_OPTION_TEXT_CREATE_OPTIONS_legacy)
     {
-      /*
-        store options position, but skip till the time we will
-        know number of fields
-      */
+      if (options)
+        goto err;
       options_len= uint4korr(next_chunk);
       options= next_chunk + 4;
       next_chunk+= options_len + 4;
@@ -1839,7 +1889,7 @@ int TABLE_SHARE::init_from_binary_frm_image(THD *thd, bool write,
           null_length, 255);
   }
 
-  if (share->db_create_options & HA_OPTION_TEXT_CREATE_OPTIONS)
+  if (options)
   {
     DBUG_ASSERT(options_len);
     if (engine_table_options_frm_read(options, options_len, share))
@@ -2028,6 +2078,9 @@ int TABLE_SHARE::init_from_sql_statement_string(THD *thd, bool write,
 
   thd->lex->create_info.db_type= plugin_data(db_plugin, handlerton *);
 
+  if (tabledef_version.str)
+    thd->lex->create_info.tabledef_version= tabledef_version;
+
   file= mysql_create_frm_image(thd, db.str, table_name.str,
                                &thd->lex->create_info, &thd->lex->alter_info,
                                0, 0, &frm);
@@ -3086,7 +3139,7 @@ void prepare_frm_header(THD *thd, uint reclength, uchar *fileinfo,
 
   fileinfo[3]= (uchar) ha_legacy_type(
         ha_checktype(thd,ha_legacy_type(create_info->db_type),0,0));
-  int2store(fileinfo+4,3);
+
   /*
     Keep in sync with pack_keys() in unireg.cc
     For each key:

sql/table.h

@@ -616,6 +616,8 @@ struct TABLE_SHARE
   I_P_List <TABLE, TABLE_share> used_tables;
   I_P_List <TABLE, TABLE_share> free_tables;
 
+  LEX_CUSTRING tabledef_version;
+
   engine_option_value *option_list;     /* text options for table */
   ha_table_option_struct *option_struct; /* structure with parsed options */
 

sql/unireg.cc

 /*
    Copyright (c) 2000, 2011, Oracle and/or its affiliates.
+   Copyright (c) 2009, 2013, Monty Program Ab.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -122,13 +123,6 @@ LEX_CUSTRING build_frm_image(THD *thd, const char *table,
                                                create_fields,
                                                keys, key_info);
   DBUG_PRINT("info", ("Options length: %u", options_len));
-  if (options_len)
-  {
-    create_info->table_options|= HA_OPTION_TEXT_CREATE_OPTIONS;
-    create_info->extra_size+= (options_len + 4);
-  }
-  else
-    create_info->table_options&= ~HA_OPTION_TEXT_CREATE_OPTIONS;
 
   /*
     This gives us the byte-position of the character at
@@ -193,13 +187,31 @@ LEX_CUSTRING build_frm_image(THD *thd, const char *table,
     forminfo[46]=(uchar) create_info->comment.length;
   }
 
+  if (!create_info->tabledef_version.str)
+  {
+    uchar *to= (uchar*) thd->alloc(MY_UUID_SIZE);
+    if (unlikely(!to))
+      DBUG_RETURN(frm);
+    my_uuid(to);
+    create_info->tabledef_version.str= to;
+    create_info->tabledef_version.length= MY_UUID_SIZE;
+  }
+  DBUG_ASSERT(create_info->tabledef_version.length > 0);
+  DBUG_ASSERT(create_info->tabledef_version.length <= 255);
+
   prepare_frm_header(thd, reclength, fileinfo, create_info, keys, key_info);
 
+  /* one byte for a type, one or three for a length */
+  uint extra2_size= 1 + 1 + create_info->tabledef_version.length;
+  if (options_len)
+    extra2_size+= 1 + (options_len > 255 ? 3 : 1) + options_len;
+
   key_buff_length= uint4korr(fileinfo+47);
 
   frm.length= FRM_HEADER_SIZE;                  // fileinfo;
-  frm.length+= uint2korr(fileinfo+4) + 4;       // "form entry"
+  frm.length+= extra2_size + 4;                 // mariadb extra2 frm segment
 
+  int2store(fileinfo+4, extra2_size);
   int2store(fileinfo+6, frm.length);
   frm.length+= key_buff_length;
   frm.length+= reclength;                       // row with default values
@@ -214,11 +226,34 @@ LEX_CUSTRING build_frm_image(THD *thd, const char *table,
   if (!frm_ptr)
     DBUG_RETURN(frm);
 
-  pos = frm_ptr + uint2korr(fileinfo+6);
-  key_info_length= pack_keys(pos, keys, key_info, data_offset);
+  /* write the extra2 segment */
+  pos = frm_ptr + 64;
+  *pos++ = EXTRA2_TABLEDEF_VERSION;
+  *pos++ = create_info->tabledef_version.length;
+  memcpy(pos, create_info->tabledef_version.str,
+              create_info->tabledef_version.length);
+  pos+= create_info->tabledef_version.length;
+
+  if (options_len)
+  {
+    *pos++= EXTRA2_ENGINE_TABLEOPTS;
+    if (options_len < 255)
+      *pos++= options_len;
+    else
+    {
+      DBUG_ASSERT(options_len <= 65535); // FIXME if necessary
+      int2store(pos + 1, options_len);
+      pos+= 3;
+    }
+    pos= engine_table_options_frm_image(pos, create_info->option_list,
+                                        create_fields, keys, key_info);
+  }
 
-  memcpy(frm_ptr + FRM_HEADER_SIZE, "//", 3);
-  int4store(frm_ptr + 67, filepos);
+  int4store(pos, filepos); // end of the extra2 segment
+  pos+= 4;
+
+  DBUG_ASSERT(pos == frm_ptr + uint2korr(fileinfo+6));
+  key_info_length= pack_keys(pos, keys, key_info, data_offset);
 
   maxlength=(uint) next_io_size((ulong) (uint2korr(forminfo)+1000));
   int2store(forminfo+2,maxlength);
@@ -285,19 +320,8 @@ LEX_CUSTRING build_frm_image(THD *thd, const char *table,
     pos+= create_info->comment.length;
   }
 
-  if (options_len)
-  {
-    int4store(pos, options_len);
-    pos+= 4;
-    engine_table_options_frm_image(pos,
-                                   create_info->option_list,
-                                   create_fields,
-                                   keys, key_info);
-    pos+= options_len;
-  }
-
-  memcpy(frm_ptr + filepos, forminfo, FRM_FORMINFO_SIZE);
-  if (pack_fields(frm_ptr + filepos + FRM_FORMINFO_SIZE, create_fields, data_offset))
+  memcpy(frm_ptr + filepos, forminfo, 288);
+  if (pack_fields(frm_ptr + filepos + 288, create_fields, data_offset))
     goto err;
 
   {
@@ -332,14 +356,12 @@ err:
   SYNOPSIS
     rea_create_table()
     thd			Thread handler
+    frm                 binary frm image of the table to create
     path		Name of file (including database, without .frm)
     db			Data base name
     table_name		Table name
     create_info		create info parameters
-    create_fields	Fields to create
-    keys		number of keys to create
-    key_info		Keys to create
-    file		Handler to use
+    file		Handler to use or NULL if only frm needs to be created
 
   RETURN
     0  ok

sql/unireg.h

@@ -167,6 +167,22 @@
 #include "sql_list.h"                           /* List<> */
 #include "field.h"                              /* Create_field */
 
+/*
+  Types of values in the MariaDB extra2 frm segment.
+  Each value is written as
+    type:       1 byte
+    length:     1 byte  (1..255) or \0 and 2 bytes.
+    binary value of the 'length' bytes.
+
+  Older MariaDB servers can ignore values of unknown types if
+  the type code is less than 128. Otherwise older servers are required
+  to report an error.
+*/
+enum extra2_frm_value_type {
+  EXTRA2_TABLEDEF_VERSION=0,
+  EXTRA2_ENGINE_TABLEOPTS=128,
+};
+
 int rea_create_table(THD *thd, LEX_CUSTRING *frm,
                      const char *path, const char *db, const char *table_name,
                      HA_CREATE_INFO *create_info, handler *file);

storage/archive/azio.c

@@ -364,6 +364,8 @@ void read_header(azio_stream *s, unsigned char *buffer)
 {
   if (buffer[0] == az_magic[0]  && buffer[1] == az_magic[1])
   {
+    uchar tmp[AZ_FRMVER_LEN + 2];
+
     s->version= (unsigned int)buffer[AZ_VERSION_POS];
     s->minor_version= (unsigned int)buffer[AZ_MINOR_VERSION_POS];
     s->block_size= 1024 * buffer[AZ_BLOCK_POS];
@@ -379,6 +381,22 @@ void read_header(azio_stream *s, unsigned char *buffer)
     s->comment_start_pos= (unsigned int)uint4korr(buffer + AZ_COMMENT_POS);
     s->comment_length= (unsigned int)uint4korr(buffer + AZ_COMMENT_LENGTH_POS);
     s->dirty= (unsigned int)buffer[AZ_DIRTY_POS];
+
+    /*
+      we'll hard-code the current frm format for now, to avoid
+      changing archive table versions.
+    */
+    if (s->frm_length == 0 ||
+        my_pread(s->file, tmp,  sizeof(tmp), s->frm_start_pos + 64, MYF(MY_NABP)) ||
+        tmp[0] != 0 || tmp[1] != AZ_FRMVER_LEN)
+    {
+      s->frmver_length= 0;
+    }
+    else
+    {
+      s->frmver_length= tmp[1];
+      memcpy(s->frmver, tmp+2, s->frmver_length);
+    }
   }
   else if (buffer[0] == gz_magic[0]  && buffer[1] == gz_magic[1])
   {

storage/archive/azlib.h

@@ -198,6 +198,7 @@ extern "C" {
 #define AZ_BUFSIZE_READ 32768
 #define AZ_BUFSIZE_WRITE 16384
 
+#define AZ_FRMVER_LEN 16 /* same as MY_UUID_SIZE in 10.0.2 */
 
 typedef struct azio_stream {
   z_stream stream;
@@ -227,6 +228,8 @@ typedef struct azio_stream {
   unsigned char dirty;   /* State of file */
   unsigned int frm_start_pos;   /* Position for start of FRM */
   unsigned int frm_length;   /* Position for start of FRM */
+  unsigned char frmver[AZ_FRMVER_LEN];
+  unsigned int frmver_length;
   unsigned int comment_start_pos;   /* Position for start of comment */
   unsigned int comment_length;   /* Position for start of comment */
 } azio_stream;

storage/archive/ha_archive.cc

@@ -673,33 +673,12 @@ int ha_archive::frm_copy(azio_stream *src, azio_stream *dst)
 
 int ha_archive::frm_compare(azio_stream *s)
 {
-  int rc= 0;
-  const uchar *frm_ptr= 0;
-  uchar *azfrm_ptr= 0;
-  size_t frm_len;
-
-  /* no frm = no discovery. perhaps it's a partitioned table */
-  if (table->s->read_frm_image(&frm_ptr, &frm_len))
-    goto err;
-
-  if (!(azfrm_ptr= (uchar *) my_malloc(s->frm_length,
-                                       MYF(MY_THREAD_SPECIFIC | MY_WME))))
-    goto err;
-
-  rc= 1;
-
-  if (frm_len != s->frm_length)
-    goto err;
-
-  if (azread_frm(s, azfrm_ptr))
-    goto err;
+  if (!s->frmver_length)
+    return 0; // Old pre-10.0 archive table. Never rediscover.
 
-  rc= memcmp(frm_ptr, azfrm_ptr, frm_len);
-
-err:
-  my_free(const_cast<uchar*>(frm_ptr));
-  my_free(azfrm_ptr);
-  return rc;
+  LEX_CUSTRING *ver= &table->s->tabledef_version;
+  return ver->length != s->frmver_length ||
+         memcmp(ver->str,  s->frmver, ver->length);
 }
 
 

storage/test_sql_discovery/mysql-test/archive/discover.rdiff

+--- suite/archive/discover.result	2013-04-08 00:06:37.000000000 +0200
++++ /usr/home/serg/Abk/mysql/10.0-serg/storage/test_sql_discovery/mysql-test/archive/discover.reject	2013-04-08 00:07:02.000000000 +0200
+@@ -42,6 +42,7 @@
+ t1	BASE TABLE
+ t2	BASE TABLE
+ t1.ARZ
++t1.frm
+ t2.ARZ
+ t2.frm
+ #
+@@ -60,6 +61,7 @@
+ flush tables;
+ rename table t2 to t0;
+ t0.ARZ
++t0.frm
+ t1.ARZ
+ t1.frm
+ #
+@@ -77,6 +79,7 @@
+ flush tables;
+ drop table t1;
+ t0.ARZ
++t0.frm
+ #
+ # discover of table non-existance on drop
+ #
+@@ -86,7 +89,7 @@
+ drop table t0;
+ show status like 'Handler_discover';
+ Variable_name	Value
+-Handler_discover	7
++Handler_discover	8
+ #
+ # Bug#45377: ARCHIVE tables aren't discoverable after OPTIMIZE
+ #