Merge jmiller@bk-internal.mysql.com:/home/bk/mysql-5.1-new

into  mysql.com:/home/ndbdev/jmiller/clones/mysql-5.1-new

mysql-test/mysql-test-run.sh

@@ -202,7 +202,14 @@ SYST=0
 REALT=0
 FAST_START=""
 MYSQL_TMP_DIR=$MYSQL_TEST_DIR/var/tmp
-SLAVE_LOAD_TMPDIR=../../var/tmp #needs to be same length to test logging
+
+# Use a relative path for where the slave will find the dumps
+# generated by "LOAD DATA" on the master. The path is relative
+# since it must have fixed length to test logging
+# i.e otherwise the output from "SHOW MASTER STATUS" will vary
+# with the strlen() of MYSQL_TEST_DIR
+SLAVE_LOAD_TMPDIR=../tmp
+
 RES_SPACE="      "
 MYSQLD_SRC_DIRS="strings mysys include extra regex myisam \
  myisammrg heap sql"
@@ -651,8 +658,10 @@ fi
 [ -d $MYSQL_TEST_DIR/var/tmp ] || mkdir $MYSQL_TEST_DIR/var/tmp
 [ -d $MYSQL_TEST_DIR/var/run ] || mkdir $MYSQL_TEST_DIR/var/run
 [ -d $MYSQL_TEST_DIR/var/log ] || mkdir $MYSQL_TEST_DIR/var/log
-ln -s $MYSQL_TEST_DIR/std_data $MYSQL_TEST_DIR/var/std_data_ln
- 
+if ! test -L $MYSQL_TEST_DIR/var/std_data_ln ; then
+  ln -s $MYSQL_TEST_DIR/std_data/ $MYSQL_TEST_DIR/var/std_data_ln
+fi
+
 if test ${COLUMNS:-0} -lt 80 ; then COLUMNS=80 ; fi
 E=`$EXPR $COLUMNS - 8`
 DASH72=`$ECHO '-------------------------------------------------------'|$CUT -c 1-$E`

mysql-test/r/date_formats.result

@@ -506,3 +506,12 @@ d1	d2
 02	February
 01	January
 drop table t1;
+select str_to_date( 1, NULL );
+str_to_date( 1, NULL )
+NULL
+select str_to_date( NULL, 1 );
+str_to_date( NULL, 1 )
+NULL
+select str_to_date( 1, IF(1=1,NULL,NULL) );
+str_to_date( 1, IF(1=1,NULL,NULL) )
+NULL

mysql-test/r/federated.result

@@ -1530,7 +1530,7 @@ CREATE TABLE federated.t1 (
 PRIMARY KEY  (`id`)
 )
 ENGINE="FEDERATED" DEFAULT CHARSET=latin1
-CONNECTION='mysql://root@127.0.0.1:9308/federated/t1';
+CONNECTION='mysql://root@127.0.0.1:SLAVE_PORT/federated/t1';
 INSERT INTO federated.t1 VALUES ();
 SELECT LAST_INSERT_ID();
 LAST_INSERT_ID()

mysql-test/r/sp-code.result

+drop procedure if exists empty;
+drop procedure if exists code_sample;
 create procedure empty()
 begin
 end;
@@ -60,3 +62,140 @@ Pos	Instruction
 20	cpop 1
 21	stmt 0 "select t.name, t.idx from t2 t order ..."
 drop procedure code_sample;
+drop procedure if exists sudoku_solve;
+create procedure sudoku_solve(p_naive boolean, p_all boolean)
+deterministic
+modifies sql data
+begin
+drop temporary table if exists sudoku_work, sudoku_schedule;
+create temporary table sudoku_work
+(
+row smallint not null,
+col smallint not null,
+dig smallint not null,
+cnt smallint,
+key using btree (cnt),
+key using btree (row),
+key using btree (col),
+unique key using hash (row,col)
+);
+create temporary table sudoku_schedule
+(
+idx int not null auto_increment primary key,
+row smallint not null,
+col smallint not null
+);
+call sudoku_init();
+if p_naive then
+update sudoku_work set cnt = 0 where dig = 0;
+else
+call sudoku_count();
+end if;
+insert into sudoku_schedule (row,col)
+select row,col from sudoku_work where cnt is not null order by cnt desc;
+begin
+declare v_scounter bigint default 0;
+declare v_i smallint default 1;
+declare v_dig smallint;
+declare v_schedmax smallint;
+select count(*) into v_schedmax from sudoku_schedule;
+more: 
+loop
+begin
+declare v_tcounter bigint default 0;
+sched:
+while v_i <= v_schedmax do
+begin
+declare v_row, v_col smallint;
+select row,col into v_row,v_col from sudoku_schedule where v_i = idx;
+select dig into v_dig from sudoku_work
+where v_row = row and v_col = col;
+case v_dig
+when 0 then
+set v_dig = 1;
+update sudoku_work set dig = 1
+where v_row = row and v_col = col;
+when 9 then
+if v_i > 0 then
+update sudoku_work set dig = 0
+where v_row = row and v_col = col;
+set v_i = v_i - 1;
+iterate sched;
+else
+select v_scounter as 'Solutions';
+leave more;
+end if;
+else
+set v_dig = v_dig + 1;
+update sudoku_work set dig = v_dig
+where v_row = row and v_col = col;
+end case;
+set v_tcounter = v_tcounter + 1;
+if not sudoku_digit_ok(v_row, v_col, v_dig) then
+iterate sched;
+end if;
+set v_i = v_i + 1;
+end;
+end while sched;
+select dig from sudoku_work;
+select v_tcounter as 'Tests';
+set v_scounter = v_scounter + 1;
+if p_all and v_i > 0 then
+set v_i = v_i - 1;
+else
+leave more;
+end if;
+end;
+end loop more;
+end;
+drop temporary table sudoku_work, sudoku_schedule;
+end//
+show procedure code sudoku_solve;
+Pos	Instruction
+0	stmt 9 "drop temporary table if exists sudoku..."
+1	stmt 1 "create temporary table sudoku_work ( ..."
+2	stmt 1 "create temporary table sudoku_schedul..."
+3	stmt 94 "call sudoku_init("
+4	jump_if_not 7(8) p_naive@0
+5	stmt 4 "update sudoku_work set cnt = 0 where ..."
+6	jump 8
+7	stmt 94 "call sudoku_count("
+8	stmt 6 "insert into sudoku_schedule (row,col)..."
+9	set v_scounter@2 0
+10	set v_i@3 1
+11	set v_dig@4 NULL
+12	set v_schedmax@5 NULL
+13	stmt 0 "select count(*) into v_schedmax from ..."
+14	set v_tcounter@6 0
+15	jump_if_not 39(39) (v_i@3 <= v_schedmax@5)
+16	set v_row@7 NULL
+17	set v_col@8 NULL
+18	stmt 0 "select row,col into v_row,v_col from ..."
+19	stmt 0 "select dig into v_dig from sudoku_wor..."
+20	set_case_expr 0 v_dig@4
+21	jump_if_not 25(34) (case_expr@0 = 0)
+22	set v_dig@4 1
+23	stmt 4 "update sudoku_work set dig = 1 where ..."
+24	jump 34
+25	jump_if_not 32(34) (case_expr@0 = 9)
+26	jump_if_not 30(34) (v_i@3 > 0)
+27	stmt 4 "update sudoku_work set dig = 0 where ..."
+28	set v_i@3 (v_i@3 - 1)
+29	jump 15
+30	stmt 0 "select v_scounter as 'Solutions'"
+31	jump 45
+32	set v_dig@4 (v_dig@4 + 1)
+33	stmt 4 "update sudoku_work set dig = v_dig wh..."
+34	set v_tcounter@6 (v_tcounter@6 + 1)
+35	jump_if_not 37(37) not(`test`.`sudoku_digit_ok`(v_row@7,v_col@8,v_dig@4))
+36	jump 15
+37	set v_i@3 (v_i@3 + 1)
+38	jump 15
+39	stmt 0 "select dig from sudoku_work"
+40	stmt 0 "select v_tcounter as 'Tests'"
+41	set v_scounter@2 (v_scounter@2 + 1)
+42	jump_if_not 45(14) (p_all@1 and (v_i@3 > 0))
+43	set v_i@3 (v_i@3 - 1)
+44	jump 14
+45	stmt 9 "drop temporary table sudoku_work, sud..."
+drop procedure sudoku_solve;

mysql-test/r/sp-error.result

@@ -1134,3 +1134,32 @@ show procedure status;
 Db	Name	Type	Definer	Modified	Created	Security_type	Comment
 test	 bug15658	PROCEDURE	root@localhost	0000-00-00 00:00:00	0000-00-00 00:00:00	DEFINER	
 drop procedure ` bug15658`;
+drop function if exists bug14270;
+drop table if exists t1;
+create table t1 (s1 int primary key);
+create function bug14270() returns int
+begin
+load index into cache t1;
+return 1;
+end|
+ERROR 0A000: Not allowed to return a result set from a function
+create function bug14270() returns int
+begin
+cache index t1 key (`primary`) in keycache1;
+return 1;
+end|
+ERROR 0A000: Not allowed to return a result set from a function
+drop table t1;
+drop procedure if exists bug15091;
+create procedure bug15091()
+begin
+declare selectstr varchar(6000) default ' ';
+declare conditionstr varchar(5000)  default '';
+set selectstr = concat(selectstr,
+' and ',
+c.operatorid,
+'in (',conditionstr, ')');
+end|
+call bug15091();
+ERROR 42S02: Unknown table 'c' in field list
+drop procedure bug15091;

mysql-test/r/sp-security.result

@@ -291,3 +291,26 @@ drop user user1_bug14834@localhost;
 drop user user2_bug14834@localhost;
 drop user user3_bug14834@localhost;
 drop database db_bug14834;
+create database db_bug14533;
+use db_bug14533;
+create table t1 (id int);
+create user user_bug14533@localhost identified by '';
+create procedure bug14533_1()
+sql security definer
+desc db_bug14533.t1;
+create procedure bug14533_2()
+sql security definer
+select * from db_bug14533.t1;
+grant execute on procedure db_bug14533.bug14533_1 to user_bug14533@localhost;
+grant execute on procedure db_bug14533.bug14533_2 to user_bug14533@localhost;
+call db_bug14533.bug14533_1();
+Field	Type	Null	Key	Default	Extra
+id	int(11)	YES		NULL	
+call db_bug14533.bug14533_2();
+id
+desc db_bug14533.t1;
+ERROR 42000: SELECT command denied to user 'user_bug14533'@'localhost' for table 't1'
+select * from db_bug14533.t1;
+ERROR 42000: SELECT command denied to user 'user_bug14533'@'localhost' for table 't1'
+drop user user_bug14533@localhost;
+drop database db_bug14533;

mysql-test/r/sp.result

@@ -4425,4 +4425,23 @@ drop procedure if exists bug15231_1|
 drop procedure if exists bug15231_2|
 drop procedure if exists bug15231_3|
 drop procedure if exists bug15231_4|
+drop procedure if exists bug15011|
+create table t3 (c1 int primary key)|
+insert into t3 values (1)|
+create procedure bug15011()
+deterministic
+begin
+declare continue handler for 1062
+select 'Outer' as 'Handler';
+begin
+declare continue handler for 1062
+select 'Inner' as 'Handler';
+insert into t3 values (1);
+end;
+end|
+call bug15011()|
+Handler
+Inner
+drop procedure bug15011|
+drop table t3|
 drop table t1,t2;

mysql-test/r/trigger.result

@@ -785,3 +785,8 @@ create trigger test.t1_bi before insert on t1 for each row set @a:=0;
 ERROR 3D000: No database selected
 drop trigger t1_bi;
 ERROR 3D000: No database selected
+create table t1 (i int);
+create trigger t1_bi before insert on t1 for each row return 0;
+ERROR 42000: RETURN is only allowed in a FUNCTION
+insert into t1 values (1);
+drop table t1;

mysql-test/t/date_formats.test

@@ -272,4 +272,11 @@ insert into t1 (f1) values ("2005-01-01");
 insert into t1 (f1) values ("2005-02-01");
 select date_format(f1, "%m") as d1, date_format(f1, "%M") as d2 from t1 order by date_format(f1, "%M");
 drop table t1;
+
+#
+# Bug #15828
+#
+select str_to_date( 1, NULL );
+select str_to_date( NULL, 1 );
+select str_to_date( 1, IF(1=1,NULL,NULL) );
 # End of 4.1 tests

mysql-test/t/federated.test

@@ -1237,6 +1237,7 @@ CREATE TABLE federated.t1 (
 
 connection master;
 DROP TABLE IF EXISTS federated.t1;
+--replace_result $SLAVE_MYPORT SLAVE_PORT
 eval CREATE TABLE federated.t1 (
     `id` int(20) NOT NULL auto_increment,
     PRIMARY KEY  (`id`)

mysql-test/t/sp-code.test

@@ -4,6 +4,11 @@
 
 -- source include/is_debug_build.inc
 
+--disable_warnings
+drop procedure if exists empty;
+drop procedure if exists code_sample;
+--enable_warnings
+
 create procedure empty()
 begin
 end;
@@ -47,3 +52,141 @@ end//
 delimiter ;//
 show procedure code code_sample;
 drop procedure code_sample;
+
+
+#
+# BUG#15737: Stored procedure optimizer bug with LEAVE
+#
+# This is a much more extensive test case than is strictly needed,
+# but it was kept as is for two reasons:
+# - The bug occurs under some quite special circumstances, so it
+#   wasn't trivial to create a smaller test,
+# - There's some value in having another more complex code sample
+#   in this test file. This might catch future code generation bugs
+#   that doesn't show in behaviour in any obvious way.
+
+--disable_warnings
+drop procedure if exists sudoku_solve;
+--enable_warnings
+
+delimiter //;
+create procedure sudoku_solve(p_naive boolean, p_all boolean)
+  deterministic
+  modifies sql data
+begin
+  drop temporary table if exists sudoku_work, sudoku_schedule;
+
+  create temporary table sudoku_work
+  (
+    row smallint not null,
+    col smallint not null,
+    dig smallint not null,
+    cnt smallint,
+    key using btree (cnt),
+    key using btree (row),
+    key using btree (col),
+    unique key using hash (row,col)
+  );
+
+  create temporary table sudoku_schedule
+  (
+    idx int not null auto_increment primary key,
+    row smallint not null,
+    col smallint not null
+  );
+
+  call sudoku_init();
+
+  if p_naive then
+    update sudoku_work set cnt = 0 where dig = 0;
+  else
+    call sudoku_count();
+  end if;
+  insert into sudoku_schedule (row,col)
+    select row,col from sudoku_work where cnt is not null order by cnt desc;
+
+  begin
+    declare v_scounter bigint default 0;
+    declare v_i smallint default 1;
+    declare v_dig smallint;
+    declare v_schedmax smallint;
+
+    select count(*) into v_schedmax from sudoku_schedule;
+
+   more: 
+    loop
+    begin
+      declare v_tcounter bigint default 0;
+
+     sched:
+      while v_i <= v_schedmax do
+      begin
+        declare v_row, v_col smallint;
+
+        select row,col into v_row,v_col from sudoku_schedule where v_i = idx;
+
+        select dig into v_dig from sudoku_work
+          where v_row = row and v_col = col;
+
+        case v_dig
+        when 0 then
+          set v_dig = 1;
+          update sudoku_work set dig = 1
+            where v_row = row and v_col = col;
+        when 9 then
+          if v_i > 0 then
+            update sudoku_work set dig = 0
+              where v_row = row and v_col = col;
+            set v_i = v_i - 1;
+            iterate sched;
+          else
+            select v_scounter as 'Solutions';
+            leave more;
+          end if;
+        else
+          set v_dig = v_dig + 1;
+          update sudoku_work set dig = v_dig
+            where v_row = row and v_col = col;
+        end case;
+
+        set v_tcounter = v_tcounter + 1;
+        if not sudoku_digit_ok(v_row, v_col, v_dig) then
+          iterate sched;
+        end if;
+        set v_i = v_i + 1;
+      end;
+      end while sched;
+
+      select dig from sudoku_work;
+      select v_tcounter as 'Tests';
+      set v_scounter = v_scounter + 1;
+
+      if p_all and v_i > 0 then
+        set v_i = v_i - 1;
+      else
+        leave more;
+      end if;
+    end;
+    end loop more;
+  end;
+
+  drop temporary table sudoku_work, sudoku_schedule;
+end//
+delimiter ;//
+
+# The interestings parts are where the code for the two "leave" are:
+# ...
+#|  26 | jump_if_not 30 (v_i@3 > 0)                                            |
+# ...
+#|  30 | stmt 0 "select v_scounter as 'Solutions'"                             |
+#|  31 | jump 45                                                               |
+# ...
+#|  42 | jump_if_not 45 (p_all@1 and (v_i@3 > 0))                              |
+#|  43 | set v_i@3 (v_i@3 - 1)                                                 |
+#|  44 | jump 14                                                               |
+#|  45 | stmt 9 "drop temporary table sudoku_work, sud..."                     |
+#+-----+-----------------------------------------------------------------------+
+# The bug appeared at position 42 (with the wrong destination).
+show procedure code sudoku_solve;
+
+drop procedure sudoku_solve;

mysql-test/t/sp-error.test

@@ -1621,6 +1621,66 @@ show procedure status;
 drop procedure ` bug15658`;
 
 
+#
+# BUG#14270: Stored procedures: crash if load index
+#
+--disable_warnings
+drop function if exists bug14270;
+drop table if exists t1;
+--enable_warnings
+
+create table t1 (s1 int primary key);
+
+delimiter |;
+--error ER_SP_NO_RETSET
+create function bug14270() returns int
+begin
+  load index into cache t1;
+  return 1;
+end|
+
+--error ER_SP_NO_RETSET
+create function bug14270() returns int
+begin
+  cache index t1 key (`primary`) in keycache1;
+  return 1;
+end|
+delimiter ;|
+
+drop table t1;
+
+
+#
+# BUG#15091: Sp Returns Unknown error in order clause....and 
+#            there is no order by clause
+#
+--disable_warnings
+drop procedure if exists bug15091;
+--enable_warnings
+
+delimiter |;
+create procedure bug15091()
+begin
+  declare selectstr varchar(6000) default ' ';
+  declare conditionstr varchar(5000)  default '';
+
+  set selectstr = concat(selectstr,
+                         ' and ',
+                         c.operatorid,
+                         'in (',conditionstr, ')');
+end|
+delimiter ;|
+
+# The error message used to be:
+#   ERROR 1109 (42S02): Unknown table 'c' in order clause
+# but is now rephrased to something less misleading:
+#   ERROR 1109 (42S02): Unknown table 'c' in field list
+--error ER_UNKNOWN_TABLE
+call bug15091();
+
+drop procedure bug15091;
+
+
 #
 # BUG#NNNN: New bug synopsis
 #

mysql-test/t/sp-security.test

@@ -487,4 +487,42 @@ drop user user2_bug14834@localhost;
 drop user user3_bug14834@localhost;
 drop database db_bug14834;
 
+
+#
+# BUG#14533: 'desc tbl' in stored procedure causes error 1142
+#
+create database db_bug14533;
+use db_bug14533;
+create table t1 (id int);
+create user user_bug14533@localhost identified by '';
+
+create procedure bug14533_1()
+    sql security definer
+  desc db_bug14533.t1;
+
+create procedure bug14533_2()
+    sql security definer
+   select * from db_bug14533.t1;
+
+grant execute on procedure db_bug14533.bug14533_1 to user_bug14533@localhost;
+grant execute on procedure db_bug14533.bug14533_2 to user_bug14533@localhost;
+
+connect (user_bug14533,localhost,user_bug14533,,test);
+
+# These should work
+call db_bug14533.bug14533_1();
+call db_bug14533.bug14533_2();
+
+# For reference, these should not work
+--error ER_TABLEACCESS_DENIED_ERROR
+desc db_bug14533.t1;
+--error ER_TABLEACCESS_DENIED_ERROR
+select * from db_bug14533.t1;
+
+# Cleanup
+connection default;
+disconnect user_bug14533;
+drop user user_bug14533@localhost;
+drop database db_bug14533;
+
 # End of 5.0 bugs.

mysql-test/t/sp.test

@@ -5198,6 +5198,37 @@ drop procedure if exists bug15231_3|
 drop procedure if exists bug15231_4|
 
 
+#
+# BUG#15011: error handler in nested block not activated
+#
+--disable_warnings
+drop procedure if exists bug15011|
+--enable_warnings
+
+create table t3 (c1 int primary key)|
+
+insert into t3 values (1)|
+
+create procedure bug15011()
+  deterministic
+begin
+  declare continue handler for 1062
+    select 'Outer' as 'Handler';
+
+  begin
+    declare continue handler for 1062
+      select 'Inner' as 'Handler';
+
+    insert into t3 values (1);
+  end;
+end|
+
+call bug15011()|
+
+drop procedure bug15011|
+drop table t3|
+
+
 #
 # BUG#NNNN: New bug synopsis
 #

mysql-test/t/trigger-grant.test

@@ -362,9 +362,9 @@ CREATE TRIGGER trg5 BEFORE DELETE ON t1
   FOR EACH ROW
     SET @a = 5;
 
---exec egrep -v '^definers=' $MYSQL_TEST_DIR/var/master-data/mysqltest_db1/t1.TRG > $MYSQL_TEST_DIR/var/tmp/t1.TRG
---exec echo "definers='' '@' '@abc@def@@' '@hostname' '@abcdef@@@hostname'" >> $MYSQL_TEST_DIR/var/tmp/t1.TRG
---exec mv $MYSQL_TEST_DIR/var/tmp/t1.TRG $MYSQL_TEST_DIR/var/master-data/mysqltest_db1/t1.TRG
+--exec egrep -v '^definers=' $MYSQLTEST_VARDIR/master-data/mysqltest_db1/t1.TRG > $MYSQLTEST_VARDIR/tmp/t1.TRG
+--exec echo "definers='' '@' '@abc@def@@' '@hostname' '@abcdef@@@hostname'" >> $MYSQLTEST_VARDIR/tmp/t1.TRG
+--exec mv $MYSQLTEST_VARDIR/tmp/t1.TRG $MYSQLTEST_VARDIR/master-data/mysqltest_db1/t1.TRG
 
 --echo
 

mysql-test/t/trigger.test

@@ -958,3 +958,12 @@ create trigger test.t1_bi before insert on t1 for each row set @a:=0;
 --error ER_NO_DB_ERROR
 drop trigger t1_bi;
 connection default;
+
+# Test for bug #16829 "Firing trigger with RETURN crashes the server"
+# RETURN is not supposed to be used anywhere except functions, so error
+# should be returned when one attempts to create trigger with RETURN.
+create table t1 (i int);
+--error ER_SP_BADRETURN
+create trigger t1_bi before insert on t1 for each row return 0;
+insert into t1 values (1);
+drop table t1;

sql/item_timefunc.cc

@@ -2967,9 +2967,9 @@ void Item_func_str_to_date::fix_length_and_dec()
   cached_field_type= MYSQL_TYPE_STRING;
   max_length= MAX_DATETIME_FULL_WIDTH*MY_CHARSET_BIN_MB_MAXLEN;
   cached_timestamp_type= MYSQL_TIMESTAMP_NONE;
-  if ((const_item= args[1]->const_item()))
+  format= args[1]->val_str(&format_str);
+  if (!args[1]->null_value && (const_item= args[1]->const_item()))
   {
-    format= args[1]->val_str(&format_str);
     cached_format_type= get_date_time_result_type(format->ptr(),
                                                   format->length());
     switch (cached_format_type) {

sql/sp_head.cc

@@ -2026,6 +2026,15 @@ sp_head::show_create_function(THD *thd)
     1) Mark used instructions
        1.1) While doing this, shortcut jumps to jump instructions
     2) Compact the code, removing unused instructions
+
+  This is the main mark and move loop; it relies on the following methods
+  in sp_instr and its subclasses:
+
+  opt_mark()           Mark instruction as reachable (will recurse for jumps)
+  opt_shortcut_jump()  Shortcut jumps to the final destination;
+                       used by opt_mark().
+  opt_move()           Update moved instruction
+  set_destination()    Set the new destination (jump instructions only)
 */
 
 void sp_head::optimize()
@@ -2718,12 +2727,6 @@ sp_instr_hpop::print(String *str)
   str->qs_append(m_count);
 }
 
-void
-sp_instr_hpop::backpatch(uint dest, sp_pcontext *dst_ctx)
-{
-  m_count= m_ctx->diff_handlers(dst_ctx);
-}
-
 
 /*
   sp_instr_hreturn class functions
@@ -2845,12 +2848,6 @@ sp_instr_cpop::print(String *str)
   str->qs_append(m_count);
 }
 
-void
-sp_instr_cpop::backpatch(uint dest, sp_pcontext *dst_ctx)
-{
-  m_count= m_ctx->diff_cursors(dst_ctx);
-}
-
 
 /*
   sp_instr_copen class functions

sql/sp_head.h

@@ -460,17 +460,34 @@ class sp_instr :public Query_arena, public Sql_alloc
   virtual void backpatch(uint dest, sp_pcontext *dst_ctx)
   {}
 
+  /*
+    Mark this instruction as reachable during optimization and return the
+    index to the next instruction. Jump instruction will mark their
+    destination too recursively.
+  */
   virtual uint opt_mark(sp_head *sp)
   {
     marked= 1;
     return m_ip+1;
   }
 
+  /*
+    Short-cut jumps to jumps during optimization. This is used by the
+    jump instructions' opt_mark() methods. 'start' is the starting point,
+    used to prevent the mark sweep from looping for ever. Return the
+    end destination.
+  */
   virtual uint opt_shortcut_jump(sp_head *sp, sp_instr *start)
   {
     return m_ip;
   }
 
+  /*
+    Inform the instruction that it has been moved during optimization.
+    Most instructions will simply update its index, but jump instructions
+    must also take care of their destination pointers. Forward jumps get
+    pushed to the backpatch list 'ibp'.
+  */
   virtual void opt_move(uint dst, List<sp_instr> *ibp)
   {
     m_ip= dst;
@@ -695,6 +712,9 @@ class sp_instr_jump : public sp_instr
       m_dest= dest;
   }
 
+  /*
+    Update the destination; used by the optimizer.
+  */
   virtual void set_destination(uint old_dest, uint new_dest)
   {
     if (m_dest == old_dest)
@@ -738,6 +758,7 @@ class sp_instr_jump_if_not : public sp_instr_jump
 
   virtual uint opt_mark(sp_head *sp);
 
+  /* Override sp_instr_jump's shortcut; we stop here */
   virtual uint opt_shortcut_jump(sp_head *sp, sp_instr *start)
   {
     return m_ip;
@@ -821,6 +842,7 @@ class sp_instr_hpush_jump : public sp_instr_jump
 
   virtual uint opt_mark(sp_head *sp);
 
+  /* Override sp_instr_jump's shortcut; we stop here. */
   virtual uint opt_shortcut_jump(sp_head *sp, sp_instr *start)
   {
     return m_ip;
@@ -858,15 +880,6 @@ class sp_instr_hpop : public sp_instr
 
   virtual void print(String *str);
 
-  virtual void backpatch(uint dest, sp_pcontext *dst_ctx);
-
-  virtual uint opt_mark(sp_head *sp)
-  {
-    if (m_count)
-      marked= 1;
-    return m_ip+1;
-  }
-
 private:
 
   uint m_count;
@@ -952,15 +965,6 @@ class sp_instr_cpop : public sp_instr
 
   virtual void print(String *str);
 
-  virtual void backpatch(uint dest, sp_pcontext *dst_ctx);
-
-  virtual uint opt_mark(sp_head *sp)
-  {
-    if (m_count)
-      marked= 1;
-    return m_ip+1;
-  }
-
 private:
 
   uint m_count;

sql/sp_rcontext.cc

@@ -164,6 +164,33 @@ sp_rcontext::set_return_value(THD *thd, Item *return_value_item)
 #define IS_NOT_FOUND_CONDITION(S) ((S)[0] == '0' && (S)[1] == '2')
 #define IS_EXCEPTION_CONDITION(S) ((S)[0] != '0' || (S)[1] > '2')
 
+/*
+  Find a handler for the given errno.
+  This is called from all error message functions (e.g. push_warning,
+  net_send_error, et al) when a sp_rcontext is in effect. If a handler
+  is found, no error is sent, and the the SP execution loop will instead
+  invoke the found handler.
+  This might be called several times before we get back to the execution
+  loop, so m_hfound can be >= 0 if a handler has already been found.
+  (In which case we don't search again - the first found handler will
+   be used.)
+  Handlers are pushed on the stack m_handler, with the latest/innermost
+  one on the top; we then search for matching handlers from the top and
+  down.
+  We search through all the handlers, looking for the most specific one
+  (sql_errno more specific than sqlstate more specific than the rest).
+  Note that mysql error code handlers is a MySQL extension, not part of
+  the standard.
+
+  SYNOPSIS
+    sql_errno     The error code
+    level         Warning level
+
+  RETURN
+    1             if a handler was found, m_hfound is set to its index (>= 0)
+    0             if not found, m_hfound is -1
+*/
+
 bool
 sp_rcontext::find_handler(uint sql_errno,
                           MYSQL_ERROR::enum_warning_level level)
@@ -174,11 +201,13 @@ sp_rcontext::find_handler(uint sql_errno,
   const char *sqlstate= mysql_errno_to_sqlstate(sql_errno);
   int i= m_hcount, found= -1;
 
+  /* Search handlers from the latest (innermost) to the oldest (outermost) */
   while (i--)
   {
     sp_cond_type_t *cond= m_handler[i].cond;
     int j= m_ihsp;
 
+    /* Check active handlers, to avoid invoking one recursively */
     while (j--)
       if (m_in_handler[j] == m_handler[i].handler)
 	break;
@@ -188,7 +217,8 @@ sp_rcontext::find_handler(uint sql_errno,
     switch (cond->type)
     {
     case sp_cond_type_t::number:
-      if (sql_errno == cond->mysqlerr)
+      if (sql_errno == cond->mysqlerr &&
+          (found < 0 || m_handler[found].cond->type > sp_cond_type_t::number))
 	found= i;		// Always the most specific
       break;
     case sp_cond_type_t::state:

sql/sql_yacc.yy

@@ -2361,7 +2361,7 @@ sp_proc_stmt_return:
 	    LEX *lex= Lex;
 	    sp_head *sp= lex->sphead;
 
-	    if (sp->m_type == TYPE_ENUM_PROCEDURE)
+	    if (sp->m_type != TYPE_ENUM_FUNCTION)
 	    {
 	      my_message(ER_SP_BADRETURN, ER(ER_SP_BADRETURN), MYF(0));
 	      YYABORT;
@@ -2450,17 +2450,16 @@ sp_proc_stmt_leave:
 	    }
 	    else
 	    {
-	      uint ip= sp->instructions();
 	      sp_instr_jump *i;
-	      sp_instr_hpop *ih;
-	      sp_instr_cpop *ic;
+	      uint ip= sp->instructions();
+	      uint n;
 
-	      ih= new sp_instr_hpop(ip++, ctx, 0);
-	      sp->push_backpatch(ih, lab);
-	      sp->add_instr(ih);
-	      ic= new sp_instr_cpop(ip++, ctx, 0);
-	      sp->push_backpatch(ic, lab);
-	      sp->add_instr(ic);
+	      n= ctx->diff_handlers(lab->ctx);
+	      if (n)
+	        sp->add_instr(new sp_instr_hpop(ip++, ctx, n));
+	      n= ctx->diff_cursors(lab->ctx);
+	      if (n)
+	        sp->add_instr(new sp_instr_cpop(ip++, ctx, n));
 	      i= new sp_instr_jump(ip, ctx);
 	      sp->push_backpatch(i, lab);  /* Jumping forward */
               sp->add_instr(i);

storage/ndb/src/kernel/blocks/ndbfs/AsyncFile.cpp

@@ -431,6 +431,7 @@ void AsyncFile::openReq(Request* request)
 
       m_fs.EXECUTE_DIRECT(block, GSN_FSWRITEREQ, signal, 
 			  FsReadWriteReq::FixedLength + 1);
+  retry:
       Uint32 size = request->par.open.page_size;
       char* buf = (char*)m_page_ptr.p;
       while(size > 0){
@@ -457,7 +458,7 @@ void AsyncFile::openReq(Request* request)
 	  close(theFd);
 	  theFd = ::open(theFileName.c_str(), new_flags, mode);
 	  if (theFd != -1)
-	    continue;
+	    goto retry;
 	}
 #endif
 	close(theFd);