SQL: TRT failure fixes [closes #318]

Unclosed stmt transaction
TRT failure in inplace

Related to #305

sql/handler.cc

@@ -1420,15 +1420,14 @@ int ha_commit_trans(THD *thd, bool all)
     {
       handlerton *ht= hi->ht();
       if ((ht->flags & HTON_NATIVE_SYS_VERSIONING) &&
-        thd->lex->sql_command == SQLCOM_ALTER_TABLE ?
+        (thd->lex->sql_command == SQLCOM_ALTER_TABLE ?
         hi->is_trx_tmp_read_write() :
-        hi->is_trx_read_write())
+        hi->is_trx_read_write()))
       {
         TR_table trt(thd, true);
-        bool updated;
+        if (trt.update())
-        if (trt.update(updated))
           goto err;
-        if (updated && all)
+        if (all)
           trans_commit_stmt(thd);
         break;
       }
@@ -4301,14 +4300,6 @@ bool handler::ha_commit_inplace_alter_table(TABLE *altered_table,
                                                    MDL_EXCLUSIVE) ||
                !commit);
 
-  if (commit && native_versioned())
-  {
-    TR_table trt(ha_thd(), true);
-    bool updated;
-    if (trt.update(updated))
-      return true;
-  }
-
    return commit_inplace_alter_table(altered_table, ha_alter_info, commit);
 }
 

sql/sql_table.cc

@@ -7428,11 +7428,22 @@ static bool mysql_inplace_alter_table(THD *thd,
   DEBUG_SYNC(thd, "alter_table_inplace_before_commit");
   THD_STAGE_INFO(thd, stage_alter_inplace_commit);
 
-  if (table->file->ha_commit_inplace_alter_table(altered_table,
-                                                 ha_alter_info,
-                                                 true))
   {
-    goto rollback;
+    TR_table trt(thd, true);
+    if (table->file->native_versioned())
+    {
+      if (trt.update())
+        return true;
+    }
+
+    if (table->file->ha_commit_inplace_alter_table(altered_table,
+                                                  ha_alter_info,
+                                                  true))
+    {
+      goto rollback;
+    }
+
+    thd->drop_temporary_table(altered_table, NULL, false);
   }
 
   close_all_tables_for_name(thd, table->s,
@@ -7442,8 +7453,6 @@ static bool mysql_inplace_alter_table(THD *thd,
                             NULL);
   table_list->table= table= NULL;
 
-  thd->drop_temporary_table(altered_table, NULL, false);
-
   /*
     Replace the old .FRM with the new .FRM, but keep the old name for now.
     Rename to the new name (if needed) will be handled separately below.

sql/table.cc

@@ -8484,22 +8484,38 @@ LEX_CSTRING *fk_option_name(enum_fk_option opt)
   return names + opt;
 }
 
-TR_table::TR_table(THD* _thd, bool rw) : thd(_thd)
+TR_table::TR_table(THD* _thd, bool rw) :
+  thd(_thd), open_tables_backup(NULL)
 {
   init_one_table(LEX_STRING_WITH_LEN(MYSQL_SCHEMA_NAME),
                  LEX_STRING_WITH_LEN(TRANSACTION_REG_NAME),
                  TRANSACTION_REG_NAME.str, rw ? TL_WRITE : TL_READ);
+}
+
+bool TR_table::open()
+{
+  DBUG_ASSERT(!table);
   open_tables_backup= new Open_tables_backup;
-  if (open_tables_backup)
+  if (!open_tables_backup)
-    open_log_table(thd, this, open_tables_backup);
+  {
-  else
     my_error(ER_OUT_OF_RESOURCES, MYF(0));
+    return true;
+  }
+
+  All_tmp_tables_list *temporary_tables= thd->temporary_tables;
+  bool error= !open_log_table(thd, this, open_tables_backup);
+  thd->temporary_tables= temporary_tables;
+
+  return error;
 }
 
 TR_table::~TR_table()
 {
   if (table)
+  {
+    thd->temporary_tables= NULL;
     close_log_table(thd, open_tables_backup);
+  }
   delete open_tables_backup;
 }
 
@@ -8532,9 +8548,9 @@ enum_tx_isolation TR_table::iso_level() const
   return res;
 }
 
-bool TR_table::update(bool &updated)
+bool TR_table::update()
 {
-  if (!table)
+  if (!table && open())
     return true;
 
   DBUG_ASSERT(table->s);
@@ -8542,6 +8558,7 @@ bool TR_table::update(bool &updated)
   DBUG_ASSERT(hton);
   DBUG_ASSERT(hton->flags & HTON_NATIVE_SYS_VERSIONING);
 
+  bool updated;
   if ((updated= hton->vers_get_trt_data(*this)))
   {
     int error= table->file->ha_write_row(table->record[0]);
@@ -8557,7 +8574,7 @@ bool TR_table::update(bool &updated)
 #define newx new (thd->mem_root)
 bool TR_table::query(ulonglong trx_id)
 {
-  if (!table)
+  if (!table && open())
     return false;
   SQL_SELECT_auto select;
   READ_RECORD info;
@@ -8587,7 +8604,7 @@ bool TR_table::query(ulonglong trx_id)
 
 bool TR_table::query(MYSQL_TIME &commit_time, bool backwards)
 {
-  if (!table)
+  if (!table && open())
     return false;
   SQL_SELECT_auto select;
   READ_RECORD info;
@@ -8684,13 +8701,13 @@ bool TR_table::query_sees(bool &result, ulonglong trx_id1, ulonglong trx_id0,
   return false;
 }
 
-bool TR_table::check() const
+bool TR_table::check()
 {
   // InnoDB may not be loaded
   if (!ha_resolve_by_legacy_type(thd, DB_TYPE_INNODB))
     return false;
 
-  if (!table)
+  if (open())
     return true;
 
   if (table->file->ht->db_type != DB_TYPE_INNODB)

sql/table.h

@@ -2946,12 +2946,13 @@ public:
     FIELD_COUNT
   };
   TR_table(THD *_thd, bool rw= false);
+  bool open();
   ~TR_table();
   THD *get_thd() const { return thd; }
   void store(uint field_id, ulonglong val);
   void store(uint field_id, timeval ts);
   void store_data(ulonglong trx_id, ulonglong commit_id, timeval commit_ts);
-  bool update(bool &updated);
+  bool update();
   // return true if found; false if not found or error
   bool query(ulonglong trx_id);
   bool query(MYSQL_TIME &commit_time, bool backwards);
@@ -2979,7 +2980,7 @@ public:
     DBUG_ASSERT(iso_level <= ISO_SERIALIZABLE);
     store(FLD_ISO_LEVEL, iso_level + 1);
   }
-  bool check() const;
+  bool check();
 };
 
 #endif /* MYSQL_CLIENT */

sql/vtmd.cc

@@ -258,7 +258,7 @@ quit:
   if (!result)
   {
     TR_table trt(thd, true);
-    result= trt.update(result);
+    result= trt.update();
   }
 
   close_log_table(thd, &open_tables_backup);