Merge 10.1 into 10.2

client/mysqlimport.c

@@ -48,8 +48,8 @@ static char *add_load_option(char *ptr,const char *object,
 			     const char *statement);
 
 static my_bool	verbose=0,lock_tables=0,ignore_errors=0,opt_delete=0,
-		replace=0,silent=0,ignore=0,opt_compress=0,
+                replace, silent, ignore, ignore_foreign_keys,
-                opt_low_priority= 0, tty_password= 0;
+                opt_compress, opt_low_priority, tty_password;
 static my_bool debug_info_flag= 0, debug_check_flag= 0;
 static uint opt_use_threads=0, opt_local_file=0, my_end_arg= 0;
 static char	*opt_password=0, *current_user=0,
@@ -123,6 +123,10 @@ static struct my_option my_long_options[] =
    &current_host, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
   {"ignore", 'i', "If duplicate unique key was found, keep old row.",
    &ignore, &ignore, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
+  {"ignore-foreign-keys", 'k',
+    "Disable foreign key checks while importing the data.",
+    &ignore_foreign_keys, &ignore_foreign_keys, 0, GET_BOOL, NO_ARG,
+    0, 0, 0, 0, 0, 0},
   {"ignore-lines", OPT_IGN_LINES, "Ignore first n lines of data infile.",
    &opt_ignore_lines, &opt_ignore_lines, 0, GET_LL,
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
@@ -489,6 +493,9 @@ static MYSQL *db_connect(char *host, char *database,
     ignore_errors=0;
     db_error(mysql);
   }
+  if (ignore_foreign_keys)
+    mysql_query(mysql, "set foreign_key_checks= 0;");
+
   return mysql;
 }
 

mysql-test/r/mysqldump.result

@@ -5629,6 +5629,24 @@ DROP FUNCTION f;
 DROP VIEW v1;
 DROP FUNCTION f;
 #
+# MDEV-788 New option to ignore foreign key contraints in mysqlimport
+#
+create table t1 (
+id int primary key
+) engine=InnoDB;
+create table t2 (
+t1_id int,
+CONSTRAINT fk
+FOREIGN KEY (t1_id) REFERENCES t1 (id)
+) ENGINE = InnoDB;
+select count(*) from t2;
+count(*)
+1
+select count(*) from t2;
+count(*)
+2
+drop tables t2, t1;
+#
 # Test for --add-drop-trigger
 #
 use test;

mysql-test/r/stat_tables.result

@@ -707,8 +707,38 @@ ERROR 42S02: Table 'test.x' doesn't exist
 select * from information_schema.tables where table_name='v';
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	TABLE_TYPE	ENGINE	VERSION	ROW_FORMAT	TABLE_ROWS	AVG_ROW_LENGTH	DATA_LENGTH	MAX_DATA_LENGTH	INDEX_LENGTH	DATA_FREE	AUTO_INCREMENT	CREATE_TIME	UPDATE_TIME	CHECK_TIME	TABLE_COLLATION	CHECKSUM	CREATE_OPTIONS	TABLE_COMMENT
 def	test	v	VIEW	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	VIEW
+set @@optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
 drop table t1,t2;
 drop view v;
+#
+# MDEV-19407: Assertion `field->table->stats_is_read' failed in is_eits_usable
+#
+set @save_optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity;
+set @@optimizer_use_condition_selectivity= 1;
+set @@use_stat_tables='never';
+create table t1(pk int);
+insert into t1 values (4),(3);
+set @@optimizer_use_condition_selectivity= 4;
+set use_stat_tables='preferably';
+INSERT INTO t1 SELECT * FROM x;
+ERROR 42S02: Table 'test.x' doesn't exist
+CREATE TABLE t2 SELECT pk FROM t1 WHERE pk>2;
+select * from t2;
+pk
+4
+3
+drop table t1,t2;
+create table t1(a int,b int, key k1(a) );
+insert into t1 values(1,1),(2,2),(3,3);
+analyze table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+select * from mysql.index_stats, t1 where index_name='k1' and t1.a > 1 and t1.b > 1;
+db_name	table_name	index_name	prefix_arity	avg_frequency	a	b
+test	t1	k1	1	1.0000	2	2
+test	t1	k1	1	1.0000	3	3
+drop table t1;
 set @@optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
 set @save_optimizer_switch=@@optimizer_switch;
 set use_stat_tables=@save_use_stat_tables;

mysql-test/r/stat_tables_innodb.result

@@ -734,8 +734,38 @@ ERROR 42S02: Table 'test.x' doesn't exist
 select * from information_schema.tables where table_name='v';
 TABLE_CATALOG	TABLE_SCHEMA	TABLE_NAME	TABLE_TYPE	ENGINE	VERSION	ROW_FORMAT	TABLE_ROWS	AVG_ROW_LENGTH	DATA_LENGTH	MAX_DATA_LENGTH	INDEX_LENGTH	DATA_FREE	AUTO_INCREMENT	CREATE_TIME	UPDATE_TIME	CHECK_TIME	TABLE_COLLATION	CHECKSUM	CREATE_OPTIONS	TABLE_COMMENT
 def	test	v	VIEW	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	VIEW
+set @@optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
 drop table t1,t2;
 drop view v;
+#
+# MDEV-19407: Assertion `field->table->stats_is_read' failed in is_eits_usable
+#
+set @save_optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity;
+set @@optimizer_use_condition_selectivity= 1;
+set @@use_stat_tables='never';
+create table t1(pk int);
+insert into t1 values (4),(3);
+set @@optimizer_use_condition_selectivity= 4;
+set use_stat_tables='preferably';
+INSERT INTO t1 SELECT * FROM x;
+ERROR 42S02: Table 'test.x' doesn't exist
+CREATE TABLE t2 SELECT pk FROM t1 WHERE pk>2;
+select * from t2;
+pk
+4
+3
+drop table t1,t2;
+create table t1(a int,b int, key k1(a) );
+insert into t1 values(1,1),(2,2),(3,3);
+analyze table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	analyze	status	Engine-independent statistics collected
+test.t1	analyze	status	OK
+select * from mysql.index_stats, t1 where index_name='k1' and t1.a > 1 and t1.b > 1;
+db_name	table_name	index_name	prefix_arity	avg_frequency	a	b
+test	t1	k1	1	1.0000	2	2
+test	t1	k1	1	1.0000	3	3
+drop table t1;
 set @@optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
 set @save_optimizer_switch=@@optimizer_switch;
 set use_stat_tables=@save_use_stat_tables;

mysql-test/t/mysqldump.test

@@ -2489,6 +2489,7 @@ DROP TABLE t1;
 DROP TABLE t2;
 DROP DATABASE db_20772273;
 USE test;
+--remove_file $MYSQLTEST_VARDIR/tmp/t2.txt
 
 --echo #
 --echo # Bug #25717383: MYSQLDUMP MAY EXECUTE ANY ARBITRARY QUERY
@@ -2657,6 +2658,34 @@ DROP FUNCTION f;
 DROP VIEW v1;
 DROP FUNCTION f;
 
+--echo #
+--echo # MDEV-788 New option to ignore foreign key contraints in mysqlimport
+--echo #
+create table t1 (
+  id int primary key
+) engine=InnoDB;
+
+create table t2 (
+  t1_id int,
+  CONSTRAINT fk
+    FOREIGN KEY (t1_id) REFERENCES t1 (id)
+) ENGINE = InnoDB;
+
+--write_file $MYSQLTEST_VARDIR/tmp/t2.txt
+0
+EOF
+
+--error 1
+--exec $MYSQL_IMPORT --silent test $MYSQLTEST_VARDIR/tmp/t2.txt
+--exec $MYSQL_IMPORT --silent -k test $MYSQLTEST_VARDIR/tmp/t2.txt
+select count(*) from t2;
+
+--exec $MYSQL_IMPORT --silent --ignore-foreign-keys test $MYSQLTEST_VARDIR/tmp/t2.txt
+select count(*) from t2;
+
+--remove_file $MYSQLTEST_VARDIR/tmp/t2.txt
+drop tables t2, t1;
+
 --echo #
 --echo # Test for --add-drop-trigger
 --echo #

mysql-test/t/stat_tables.test

@@ -469,9 +469,35 @@ CREATE VIEW v AS SELECT * FROM t1 JOIN t2;
 INSERT INTO t2 SELECT * FROM x;
 
 select * from information_schema.tables where table_name='v';
+set @@optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
 
 drop table t1,t2;
 drop view v;
+
+--echo #
+--echo # MDEV-19407: Assertion `field->table->stats_is_read' failed in is_eits_usable
+--echo #
+
+set @save_optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity;
+set @@optimizer_use_condition_selectivity= 1;
+set @@use_stat_tables='never';
+create table t1(pk int);
+insert into t1 values (4),(3);
+set @@optimizer_use_condition_selectivity= 4;
+set use_stat_tables='preferably';
+
+--error ER_NO_SUCH_TABLE
+INSERT INTO t1 SELECT * FROM x;
+CREATE TABLE t2 SELECT pk FROM t1 WHERE pk>2;
+select * from t2;
+drop table t1,t2;
+
+create table t1(a int,b int, key k1(a) );
+insert into t1 values(1,1),(2,2),(3,3);
+analyze table t1;
+select * from mysql.index_stats, t1 where index_name='k1' and t1.a > 1 and t1.b > 1;
+drop table t1;
+
 set @@optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
 
 set @save_optimizer_switch=@@optimizer_switch;

sql/opt_range.cc

@@ -3038,7 +3038,7 @@ bool calculate_cond_selectivity_for_table(THD *thd, TABLE *table, Item **cond)
 
   if (thd->variables.optimizer_use_condition_selectivity > 2 &&
       !bitmap_is_clear_all(used_fields) &&
-      thd->variables.use_stat_tables > 0)
+      thd->variables.use_stat_tables > 0 && table->stats_is_read)
   {
     PARAM param;
     MEM_ROOT alloc;

sql/sql_statistics.cc

@@ -2201,6 +2201,9 @@ inline bool statistics_for_command_is_needed(THD *thd)
   case SQLCOM_DELETE_MULTI:
   case SQLCOM_REPLACE:
   case SQLCOM_REPLACE_SELECT:
+  case SQLCOM_CREATE_TABLE:
+  case SQLCOM_SET_OPTION:
+  case SQLCOM_DO:
     break;
   default: 
     return FALSE;