MDEV-10682 Race condition between ANALYZE and STATS_AUTO_RECALC

ha_innobase::info_low(): While collecting statistics for
ANALYZE TABLE, ensure that dict_stats_process_entry_from_recalc_pool()
is not executing on the same table.

We observed result differences for the test innodb.innodb_stats because
dict_stats_empty_index() was being invoked by the background statistics
calculation while ha_innobase::analyze() was executing
dict_stats_analyze_index_level().

storage/innobase/handler/ha_innodb.cc

@@ -14411,6 +14411,13 @@ ha_innobase::info_low(
 			if (dict_stats_is_persistent_enabled(ib_table)) {
 
 				if (is_analyze) {
+					row_mysql_lock_data_dictionary(
+						m_prebuilt->trx);
+					dict_stats_recalc_pool_del(ib_table);
+					dict_stats_wait_bg_to_stop_using_table(
+						ib_table, m_prebuilt->trx);
+					row_mysql_unlock_data_dictionary(
+						m_prebuilt->trx);
 					opt = DICT_STATS_RECALC_PERSISTENT;
 				} else {
 					/* This is e.g. 'SHOW INDEXES', fetch
@@ -14423,6 +14430,13 @@ ha_innobase::info_low(
 
 			ret = dict_stats_update(ib_table, opt);
 
+			if (opt == DICT_STATS_RECALC_PERSISTENT) {
+				mutex_enter(&dict_sys->mutex);
+				ib_table->stats_bg_flag
+					&= byte(~BG_STAT_SHOULD_QUIT);
+				mutex_exit(&dict_sys->mutex);
+			}
+
 			if (ret != DB_SUCCESS) {
 				m_prebuilt->trx->op_info = "";
 				DBUG_RETURN(HA_ERR_GENERIC);