Merge 10.5 into 10.6

mysql-test/main/item_types.result

@@ -42,5 +42,14 @@ SELECT * FROM v WHERE f = '10.5.20';
 f
 drop view v;
 #
+# MDEV-34785: Assertion failure in Item_func_or_sum::do_build_clone
+# (Item_func_not_all)
+#
+CREATE VIEW t AS SELECT 0 AS a;
+SELECT * FROM t WHERE a=ALL (SELECT 0);
+a
+0
+DROP VIEW t;
+#
 # End of 10.5 tests
 #

mysql-test/main/item_types.test

@@ -46,6 +46,15 @@ CREATE VIEW v AS SELECT version() AS f;
 SELECT * FROM v WHERE f = '10.5.20';
 drop view v;
 
+--echo #
+--echo # MDEV-34785: Assertion failure in Item_func_or_sum::do_build_clone
+--echo # (Item_func_not_all)
+--echo #
+
+CREATE VIEW t AS SELECT 0 AS a;
+SELECT * FROM t WHERE a=ALL (SELECT 0);
+DROP VIEW t;
+
 --echo #
 --echo # End of 10.5 tests
 --echo #

mysql-test/suite/mariabackup/slave_provision_nolock.test

 --source include/have_innodb.inc
 --source include/have_log_bin.inc
+# Test does a lot of queries that take a lot of CPU under Valgrind.
+--source include/not_valgrind.inc
 
 call mtr.add_suppression("Can't init tc log");
 call mtr.add_suppression("Aborting");

mysql-test/suite/rpl/r/rpl_old_master.result

@@ -9,10 +9,7 @@ connection slave;
 SET @old_parallel= @@GLOBAL.slave_parallel_threads;
 SET GLOBAL slave_parallel_threads=10;
 CHANGE MASTER TO master_host='127.0.0.1', master_port=SERVER_MYPORT_1, master_user='root', master_log_file='master-bin.000001', master_log_pos=4;
-FLUSH TABLES WITH READ LOCK;
 include/start_slave.inc
-include/wait_for_slave_param.inc [Seconds_Behind_Master]
-UNLOCK TABLES;
 connection master;
 CREATE TABLE t2 (a INT PRIMARY KEY) ENGINE=InnoDB;
 INSERT INTO t2 VALUES (1);

mysql-test/suite/rpl/t/rpl_create_drop_event.test

@@ -14,6 +14,12 @@ SET GLOBAL event_scheduler=on;
 let $wait_condition= SELECT count(*)>0 FROM t1;
 --source include/wait_condition.inc
 SET GLOBAL event_scheduler=off;
+# If the time rolls to the next whole second just at this point, a new event
+# run may be scheduled. Wait for this to disappear, otherwise we see occasional
+# test failures if the table gets dropped before the extra event run completes.
+# Expect 5 connections: default, master, master1, server_1, binlog dump thread
+--let $wait_condition= SELECT COUNT(*) = 5 FROM INFORMATION_SCHEMA.PROCESSLIST;
+--source include/wait_condition.inc
 SELECT DISTINCT a FROM t1;
 DELETE FROM t1;
 

mysql-test/suite/rpl/t/rpl_mdev6020.test

+# Test applies a large binlog, takes long under Valgrind with little benefit.
+--source include/not_valgrind.inc
 --source include/have_innodb.inc
 --source include/have_partition.inc
 --source include/have_binlog_format_mixed_or_row.inc

mysql-test/suite/rpl/t/rpl_old_master.test

@@ -28,14 +28,7 @@ SET GLOBAL slave_parallel_threads=10;
 --replace_result $SERVER_MYPORT_1 SERVER_MYPORT_1
 eval CHANGE MASTER TO master_host='127.0.0.1', master_port=$SERVER_MYPORT_1, master_user='root', master_log_file='master-bin.000001', master_log_pos=4;
 
-# Block execution yet when the blocked query timestamp has been already accounted
-FLUSH TABLES WITH READ LOCK;
 --source include/start_slave.inc
---let $slave_param           = Seconds_Behind_Master
---let $slave_param_value     = 1
---let $slave_param_comparison= >=
---source include/wait_for_slave_param.inc
-UNLOCK TABLES;
 
 --connection master
 CREATE TABLE t2 (a INT PRIMARY KEY) ENGINE=InnoDB;

mysql-test/suite/rpl/t/rpl_start_stop_slave.test

@@ -19,7 +19,17 @@
 --source include/master-slave.inc
 
 connection slave;
---let $connection_id=`SELECT id FROM information_schema.processlist where state LIKE 'Waiting for master to send event'`
+--let $i= 100
+while ($i > 0) {
+  dec $i;
+  --let $connection_id=`SELECT id FROM information_schema.processlist where state LIKE 'Waiting for master to send event'`
+  if ($connection_id) {
+    let $i= 0;
+  }
+  if ($i > 0) {
+    --sleep 0.1
+  }
+}
 
 if(!$connection_id)
 {

mysys/crc32/crc32c_x86.cc

@@ -39,7 +39,7 @@ extern "C" unsigned crc32c_sse42(unsigned crc, const void* buf, size_t size);
 
 constexpr uint32_t cpuid_ecx_SSE42= 1U << 20;
 constexpr uint32_t cpuid_ecx_SSE42_AND_PCLMUL= cpuid_ecx_SSE42 | 1U << 1;
-constexpr uint32_t cpuid_ecx_XSAVE= 1U << 26;
+constexpr uint32_t cpuid_ecx_AVX_AND_XSAVE= 1U << 28 | 1U << 27;
 
 static uint32_t cpuid_ecx()
 {
@@ -395,7 +395,7 @@ static bool os_have_avx512()
 
 static ATTRIBUTE_NOINLINE bool have_vpclmulqdq(uint32_t cpuid_ecx)
 {
-  if (!(cpuid_ecx & cpuid_ecx_XSAVE) || !os_have_avx512())
+  if ((~cpuid_ecx & cpuid_ecx_AVX_AND_XSAVE) || !os_have_avx512())
     return false;
 # ifdef _MSC_VER
   int regs[4];

sql/item.h

@@ -4883,7 +4883,6 @@ class Item_string_with_introducer :public Item_string
   }
   Item *do_get_copy(THD *thd) const override
   { return get_item_copy<Item_string_with_introducer>(thd, this); }
-  Item *do_build_clone(THD *thd) const override { return get_copy(thd); }
 };
 
 
@@ -4898,7 +4897,6 @@ class Item_string_sys :public Item_string
   { }
   Item *do_get_copy(THD *thd) const override
   { return get_item_copy<Item_string_sys>(thd, this); }
-  Item *do_build_clone(THD *thd) const override { return get_copy(thd); }
 };
 
 
@@ -4915,7 +4913,6 @@ class Item_string_ascii :public Item_string
   { }
   Item *do_get_copy(THD *thd) const override
   { return get_item_copy<Item_string_ascii>(thd, this); }
-  Item *do_build_clone(THD *thd) const override { return get_copy(thd); }
 };
 
 
@@ -4954,7 +4951,6 @@ class Item_static_string_func :public Item_string
   }
   Item *do_get_copy(THD *thd) const override
   { return get_item_copy<Item_static_string_func>(thd, this); }
-  Item *do_build_clone(THD *thd) const override { return get_copy(thd); }
 };
 
 
@@ -4974,7 +4970,6 @@ class Item_partition_func_safe_string: public Item_string
   }
   Item *do_get_copy(THD *thd) const override
   { return get_item_copy<Item_partition_func_safe_string>(thd, this); }
-  Item *do_build_clone(THD *thd) const override { return get_copy(thd); }
 };
 
 
@@ -5138,7 +5133,6 @@ class Item_bin_string: public Item_hex_hybrid
   void print(String *str, enum_query_type query_type) override;
   Item *do_get_copy(THD *thd) const override
   { return get_item_copy<Item_bin_string>(thd, this); }
-  Item *do_build_clone(THD *thd) const override { return get_copy(thd); }
 };
 
 

sql/item_cmpfunc.h

@@ -756,6 +756,8 @@ class Item_func_not_all :public Item_func_not
   void set_sub_test(Item_maxmin_subselect *item) { test_sub_item= item; test_sum_item= 0;};
   bool empty_underlying_subquery();
   Item *neg_transformer(THD *thd) override;
+  Item *do_get_copy(THD *thd) const override
+  { return get_item_copy<Item_func_not_all>(thd, this); }
 };
 
 

sql/rpl_parallel.cc

@@ -1466,11 +1466,23 @@ handle_rpl_parallel_thread(void *arg)
           after mark_start_commit(), we have to unmark, which has at least a
           theoretical possibility of leaving a window where it looks like all
           transactions in a GCO have started committing, while in fact one
-          will need to rollback and retry. This is not supposed to be possible
-          (since there is a deadlock, at least one transaction should be
-          blocked from reaching commit), but this seems a fragile ensurance,
-          and there were historically a number of subtle bugs in this area.
-        */
+          will need to rollback and retry.
+
+          Normally this will not happen, since the kill is there to resolve a
+          deadlock that is preventing at least one transaction from proceeding.
+          One case it can happen is with InnoDB dict stats update, which can
+          temporarily cause transactions to block each other, but locks are
+          released immediately, they don't linger until commit. There could be
+          other similar cases, there were historically a number of subtle bugs
+          in this area.
+
+          But once we start the commit, we can expect that no new lock
+          conflicts will be introduced. So by handling any lingering deadlock
+          kill at this point just before mark_start_commit(), we should be
+          robust even towards spurious deadlock kills.
+        */
+        if (rgi->killed_for_retry != rpl_group_info::RETRY_KILL_NONE)
+          wait_for_pending_deadlock_kill(thd, rgi);
         if (!thd->killed)
         {
           DEBUG_SYNC(thd, "rpl_parallel_before_mark_start_commit");

sql/rpl_rli.cc

@@ -2520,6 +2520,23 @@ rpl_group_info::unmark_start_commit()
 
   e= this->parallel_entry;
   mysql_mutex_lock(&e->LOCK_parallel_entry);
+  /*
+    Assert that we have not already wrongly completed this GCO and signalled
+    the next one to start, only to now unmark and make the signal invalid.
+    This is to catch problems like MDEV-34696.
+
+    The error inject rpl_parallel_simulate_temp_err_xid is used to test this
+    precise situation, that we handle it gracefully if it somehow occurs in a
+    release build. So disable the assert in this case.
+  */
+#ifndef DBUG_OFF
+  bool allow_unmark_after_complete= false;
+  DBUG_EXECUTE_IF("rpl_parallel_simulate_temp_err_xid",
+                  allow_unmark_after_complete= true;);
+  DBUG_ASSERT(!gco->next_gco ||
+              gco->next_gco->wait_count > e->count_committing_event_groups ||
+              allow_unmark_after_complete);
+#endif
   --e->count_committing_event_groups;
   mysql_mutex_unlock(&e->LOCK_parallel_entry);
 }

storage/maria/ma_bitmap.c

@@ -3074,21 +3074,25 @@ my_bool _ma_check_if_right_bitmap_type(MARIA_HA *info,
 int _ma_bitmap_create_first(MARIA_SHARE *share)
 {
   uint block_size= share->bitmap.block_size;
+  size_t error;
   File file= share->bitmap.file.file;
-  uchar marker[CRC_SIZE];
+  uchar *temp_buff;
+
+  if (!(temp_buff= (uchar*) my_alloca(block_size)))
+    return 1;
+  bzero(temp_buff, block_size);
 
   /*
     Next write operation of the page will write correct CRC
     if it is needed
   */
-  int4store(marker, MARIA_NO_CRC_BITMAP_PAGE);
+  int4store(temp_buff + block_size - CRC_SIZE, MARIA_NO_CRC_BITMAP_PAGE);
 
-  if (mysql_file_chsize(file, block_size - sizeof(marker),
-                        0, MYF(MY_WME)) ||
-      my_pwrite(file, marker, sizeof(marker),
-                block_size - sizeof(marker),
-                MYF(MY_NABP | MY_WME)))
+  error= my_pwrite(file, temp_buff, block_size, 0, MYF(MY_NABP | MY_WME));
+  my_afree(temp_buff);
+  if (error)
     return 1;
+
   share->state.state.data_file_length= block_size;
   _ma_bitmap_delete_all(share);
   return 0;

storage/maria/ma_check.c

@@ -420,6 +420,8 @@ int maria_chk_size(HA_CHECK *param, register MARIA_HA *info)
     /* We cannot check file sizes for S3 */
     DBUG_RETURN(0);
   }
+  /* We should never come here with internal temporary tables */
+  DBUG_ASSERT(!share->internal_table);
 
   if (!(param->testflag & T_SILENT))
     puts("- check file-size");
@@ -715,6 +717,8 @@ static int chk_index_down(HA_CHECK *param, MARIA_HA *info,
   MARIA_PAGE ma_page;
   DBUG_ENTER("chk_index_down");
 
+  DBUG_ASSERT(!share->internal_table);
+
   /* Key blocks must lay within the key file length entirely. */
   if (page + keyinfo->block_length > share->state.state.key_file_length)
   {
@@ -2467,7 +2471,16 @@ static int initialize_variables_for_repair(HA_CHECK *param,
     return 1;
 
   /* calculate max_records */
+  if (!share->internal_table)
+  {
+    /* Get real file size */
     sort_info->filelength= my_seek(info->dfile.file, 0L, MY_SEEK_END, MYF(0));
+  }
+  else
+  {
+    /* For internal temporary files we are using the logical file length */
+    sort_info->filelength= share->state.state.data_file_length;
+  }
 
   param->max_progress= sort_info->filelength;
   if ((param->testflag & T_CREATE_MISSING_KEYS) ||
@@ -2865,7 +2878,8 @@ int maria_repair(HA_CHECK *param, register MARIA_HA *info,
   {
     fputs("          \r",stdout); fflush(stdout);
   }
-  if (mysql_file_chsize(share->kfile.file,
+  if (!share->internal_table &&
+      mysql_file_chsize(share->kfile.file,
                         share->state.state.key_file_length, 0, MYF(0)))
   {
     _ma_check_print_warning(param,
@@ -4176,7 +4190,8 @@ int maria_repair_by_sort(HA_CHECK *param, register MARIA_HA *info,
   if (param->testflag & T_CALC_CHECKSUM)
     share->state.state.checksum=param->glob_crc;
 
-  if (mysql_file_chsize(share->kfile.file,
+  if (!share->internal_table &&
+      mysql_file_chsize(share->kfile.file,
                         share->state.state.key_file_length, 0, MYF(0)))
     _ma_check_print_warning(param,
 			   "Can't change size of indexfile, error: %d",
@@ -4724,7 +4739,8 @@ int maria_repair_parallel(HA_CHECK *param, register MARIA_HA *info,
   if (param->testflag & T_CALC_CHECKSUM)
     share->state.state.checksum=param->glob_crc;
 
-  if (mysql_file_chsize(share->kfile.file,
+  if (!share->internal_table &&
+      mysql_file_chsize(share->kfile.file,
                         share->state.state.key_file_length, 0, MYF(0)))
     _ma_check_print_warning(param,
 			   "Can't change size of indexfile, error: %d",
@@ -6135,6 +6151,8 @@ int maria_test_if_almost_full(MARIA_HA *info)
 {
   MARIA_SHARE *share= info->s;
 
+  DBUG_ASSERT(!share->internal_table);
+
   if (share->options & HA_OPTION_COMPRESS_RECORD)
     return 0;
   return mysql_file_seek(share->kfile.file, 0L, MY_SEEK_END,

storage/maria/ma_delete_all.c

@@ -130,9 +130,17 @@ int maria_delete_all_rows(MARIA_HA *info)
 #endif
 
   if (_ma_flush_table_files(info, MARIA_FLUSH_DATA|MARIA_FLUSH_INDEX,
-                            FLUSH_IGNORE_CHANGED, FLUSH_IGNORE_CHANGED) ||
-      mysql_file_chsize(info->dfile.file, 0, 0, MYF(MY_WME)) ||
-      mysql_file_chsize(share->kfile.file, share->base.keystart, 0, MYF(MY_WME)))
+                            FLUSH_IGNORE_CHANGED, FLUSH_IGNORE_CHANGED))
+    goto err;
+  /*
+    Avoid truncate of internal temporary tables as this can have a big
+    performance overhead when called by mysql_handle_single_derived()
+    tables in MariaDB as part of split materialization.
+  */
+  if (!share->internal_table &&
+      (mysql_file_chsize(info->dfile.file, 0, 0, MYF(MY_WME)) ||
+       mysql_file_chsize(share->kfile.file, share->base.keystart, 0,
+                         MYF(MY_WME))))
     goto err;
 
   if (_ma_initialize_data_file(share, info->dfile.file))