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Commit 7b80e625 authored by monty@mysql.com's avatar monty@mysql.com
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Cleanups during review of new code

parent c954c09a
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Showing with 250 additions and 194 deletions
mysql-test/t/sp.test
View file @ 7b80e625
......@@ -2468,25 +2468,26 @@ drop table t3|
#
# BUG#4318
#
#QQ Don't know if HANDLER commands can work with SPs, or at all...
#
#create table t3 (s1 int)|
#insert into t3 values (3), (4)|
#
#--disable_warnings
#drop procedure if exists bug4318|
#--enable_warnings
#create procedure bug4318()
# handler t3 read next|
#
#handler t3 open|
## Expect no results, as tables are closed, but there shouldn't be any errors
#call bug4318()|
#call bug4318()|
#handler t3 close|
#
#drop procedure bug4318|
#drop table t3|
--disable_parsing Don't know if HANDLER commands can work with SPs, or at all..
create table t3 (s1 int)|
insert into t3 values (3), (4)|
--disable_warnings
drop procedure if exists bug4318|
--enable_warnings
create procedure bug4318()
handler t3 read next|
handler t3 open|
# Expect no results, as tables are closed, but there shouldn't be any errors
call bug4318()|
call bug4318()|
handler t3 close|
drop procedure bug4318|
drop table t3|
--enable_parsing
#
# BUG#4902: Stored procedure with SHOW WARNINGS leads to packet error
......@@ -2834,26 +2835,27 @@ drop table t3|
#
# BUG#6022: Stored procedure shutdown problem with self-calling function.
#
# This part of test is disabled until we implement support for
# recursive stored functions.
#--disable_warnings
#drop function if exists bug6022|
#--enable_warnings
#
#--disable_warnings
#drop function if exists bug6022|
#--enable_warnings
#create function bug6022(x int) returns int
#begin
# if x < 0 then
# return 0;
# else
# return bug6022(x-1);
# end if;
#end|
#
#select bug6022(5)|
#drop function bug6022|
--disable_parsing until we implement support for recursive stored functions.
--disable_warnings
drop function if exists bug6022|
--enable_warnings
--disable_warnings
drop function if exists bug6022|
--enable_warnings
create function bug6022(x int) returns int
begin
if x < 0 then
return 0;
else
return bug6022(x-1);
end if;
end|
select bug6022(5)|
drop function bug6022|
--enable_parsing
#
# BUG#6029: Stored procedure specific handlers should have priority
......@@ -3760,27 +3762,28 @@ drop procedure if exists bug7088_1|
drop procedure if exists bug7088_2|
--enable_warnings
# psergey: temporarily disabled until Bar fixes BUG#11986
# create procedure bug6063()
# lbel: begin end|
# call bug6063()|
# # QQ Known bug: this will not show the label correctly.
# show create procedure bug6063|
#
# set character set utf8|
# create procedure bug7088_1()
# label1: begin end label1|
# create procedure bug7088_2()
# läbel1: begin end|
# call bug7088_1()|
# call bug7088_2()|
# set character set default|
# show create procedure bug7088_1|
# show create procedure bug7088_2|
#
# drop procedure bug6063|
# drop procedure bug7088_1|
# drop procedure bug7088_2|
--disable_parsing temporarily disabled until Bar fixes BUG#11986
create procedure bug6063()
lbel: begin end|
call bug6063()|
# QQ Known bug: this will not show the label correctly.
show create procedure bug6063|
set character set utf8|
create procedure bug7088_1()
label1: begin end label1|
create procedure bug7088_2()
läbel1: begin end|
call bug7088_1()|
call bug7088_2()|
set character set default|
show create procedure bug7088_1|
show create procedure bug7088_2|
drop procedure bug6063|
drop procedure bug7088_1|
drop procedure bug7088_2|
--enable_parsing
#
# BUG#9565: "Wrong locking in stored procedure if a sub-sequent procedure
......
sql/lock.cc
View file @ 7b80e625
......@@ -849,10 +849,6 @@ static void print_lock_error(int error, const char *table)
So in this exceptional case the COMMIT should not be blocked by the FLUSH
TABLES WITH READ LOCK.
TODO in MySQL 5.x: make_global_read_lock_block_commit() should be
killable. Normally CPU does not spend a long time in this function (COMMITs
are quite fast), but it would still be nice.
****************************************************************************/
volatile uint global_read_lock=0;
......@@ -1003,7 +999,7 @@ bool make_global_read_lock_block_commit(THD *thd)
pthread_cond_wait(&COND_refresh, &LOCK_global_read_lock);
DBUG_EXECUTE_IF("make_global_read_lock_block_commit_loop",
protect_against_global_read_lock--;);
if (error= thd->killed)
if ((error= test(thd->killed)))
global_read_lock_blocks_commit--; // undo what we did
else
thd->global_read_lock= MADE_GLOBAL_READ_LOCK_BLOCK_COMMIT;
......
sql/mysqld.cc
View file @ 7b80e625
......@@ -1908,7 +1908,8 @@ static void check_data_home(const char *path)
static void sig_reload(int signo)
{
// Flush everything
reload_acl_and_cache((THD*) 0,REFRESH_LOG, (TABLE_LIST*) 0, NULL);
bool not_used;
reload_acl_and_cache((THD*) 0,REFRESH_LOG, (TABLE_LIST*) 0, &not_used);
signal(signo, SIG_ACK);
}
......@@ -2267,12 +2268,13 @@ static void *signal_hand(void *arg __attribute__((unused)))
case SIGHUP:
if (!abort_loop)
{
bool not_used;
mysql_print_status(); // Print some debug info
reload_acl_and_cache((THD*) 0,
(REFRESH_LOG | REFRESH_TABLES | REFRESH_FAST |
REFRESH_GRANT |
REFRESH_THREADS | REFRESH_HOSTS),
(TABLE_LIST*) 0, NULL); // Flush logs
(TABLE_LIST*) 0, &not_used); // Flush logs
}
break;
#ifdef USE_ONE_SIGNAL_HAND
......
sql/sp_cache.cc
View file @ 7b80e625
......@@ -22,7 +22,7 @@
#include "sp_head.h"
static pthread_mutex_t Cversion_lock;
static ulong Cversion = 0;
static ulong volatile Cversion = 0;
void
sp_cache_init()
......@@ -30,6 +30,7 @@ sp_cache_init()
pthread_mutex_init(&Cversion_lock, MY_MUTEX_INIT_FAST);
}
void
sp_cache_clear(sp_cache **cp)
{
......@@ -42,33 +43,31 @@ sp_cache_clear(sp_cache **cp)
}
}
void
sp_cache_insert(sp_cache **cp, sp_head *sp)
{
sp_cache *c= *cp;
ulong v;
if (! c)
c= new sp_cache();
if (c)
{
ulong v;
pthread_mutex_lock(&Cversion_lock); // LOCK
v= Cversion;
pthread_mutex_unlock(&Cversion_lock); // UNLOCK
if (!(c= new sp_cache()))
return; // End of memory error
}
if (c->version < v)
{
if (*cp)
c->remove_all();
c->version= v;
}
c->insert(sp);
if (*cp == NULL)
*cp= c;
v= Cversion; /* No need to lock when reading long variable */
if (c->version < v)
{
if (*cp)
c->remove_all();
c->version= v;
}
c->insert(sp);
*cp= c; // Update *cp if it was NULL
}
sp_head *
sp_cache_lookup(sp_cache **cp, sp_name *name)
{
......@@ -78,10 +77,8 @@ sp_cache_lookup(sp_cache **cp, sp_name *name)
if (! c)
return NULL;
pthread_mutex_lock(&Cversion_lock); // LOCK
v= Cversion;
pthread_mutex_unlock(&Cversion_lock); // UNLOCK
v= Cversion; /* No need to lock when reading long variable */
if (c->version < v)
{
c->remove_all();
......@@ -91,6 +88,7 @@ sp_cache_lookup(sp_cache **cp, sp_name *name)
return c->lookup(name->m_qname.str, name->m_qname.length);
}
bool
sp_cache_remove(sp_cache **cp, sp_name *name)
{
......@@ -114,14 +112,14 @@ sp_cache_remove(sp_cache **cp, sp_name *name)
return found;
}
void
sp_cache_invalidate()
{
pthread_mutex_lock(&Cversion_lock); // LOCK
Cversion++;
pthread_mutex_unlock(&Cversion_lock); // UNLOCK
thread_safe_increment(Cversion, &Cversion_lock); // UNLOCK
}
static byte *
hash_get_key_for_sp_head(const byte *ptr, uint *plen,
my_bool first)
......@@ -132,6 +130,7 @@ hash_get_key_for_sp_head(const byte *ptr, uint *plen,
return (byte*) sp->m_qname.str;
}
static void
hash_free_sp_head(void *p)
{
......@@ -140,16 +139,19 @@ hash_free_sp_head(void *p)
delete sp;
}
sp_cache::sp_cache()
{
init();
}
sp_cache::~sp_cache()
{
hash_free(&m_hashtable);
}
void
sp_cache::init()
{
......@@ -158,6 +160,7 @@ sp_cache::init()
version= 0;
}
void
sp_cache::cleanup()
{
......
sql/sp_head.cc
View file @ 7b80e625
......@@ -678,12 +678,14 @@ sp_head::execute(THD *thd)
cleanup_items(i->free_list);
i->state= Query_arena::EXECUTED;
// Check if an exception has occurred and a handler has been found
// Note: We havo to check even if ret==0, since warnings (and some
// errors don't return a non-zero value.
// We also have to check even if thd->killed != 0, since some
// errors return with this even when a handler has been found
// (e.g. "bad data").
/*
Check if an exception has occurred and a handler has been found
Note: We havo to check even if ret==0, since warnings (and some
errors don't return a non-zero value.
We also have to check even if thd->killed != 0, since some
errors return with this even when a handler has been found
(e.g. "bad data").
*/
if (ctx)
{
uint hf;
......@@ -759,8 +761,10 @@ sp_head::execute_function(THD *thd, Item **argp, uint argcount, Item **resp)
if (argcount != params)
{
// Need to use my_printf_error here, or it will not terminate the
// invoking query properly.
/*
Need to use my_printf_error here, or it will not terminate the
invoking query properly.
*/
my_error(ER_SP_WRONG_NO_OF_ARGS, MYF(0),
"FUNCTION", m_qname.str, params, argcount);
DBUG_RETURN(-1);
......@@ -784,9 +788,11 @@ sp_head::execute_function(THD *thd, Item **argp, uint argcount, Item **resp)
DBUG_RETURN(-1);
}
}
// The rest of the frame are local variables which are all IN.
// Default all variables to null (those with default clauses will
// be set by an set instruction).
/*
The rest of the frame are local variables which are all IN.
Default all variables to null (those with default clauses will
be set by an set instruction).
*/
{
Item_null *nit= NULL; // Re-use this, and only create if needed
for (; i < csize ; i++)
......@@ -803,9 +809,11 @@ sp_head::execute_function(THD *thd, Item **argp, uint argcount, Item **resp)
ret= execute(thd);
// Partially restore context now.
// We still need the call mem root and free list for processing
// of the result.
/*
Partially restore context now.
We still need the call mem root and free list for processing
of the result.
*/
thd->restore_backup_item_arena(&call_arena, &backup_arena);
if (m_type == TYPE_ENUM_FUNCTION && ret == 0)
......@@ -932,9 +940,11 @@ sp_head::execute_procedure(THD *thd, List<Item> *args)
close_thread_tables(thd, 0, 0, 0);
DBUG_PRINT("info",(" %.*s: eval args done", m_name.length, m_name.str));
// The rest of the frame are local variables which are all IN.
// Default all variables to null (those with default clauses will
// be set by an set instruction).
/*
The rest of the frame are local variables which are all IN.
Default all variables to null (those with default clauses will
be set by an set instruction).
*/
for (; i < csize ; i++)
{
if (! nit)
......@@ -956,8 +966,10 @@ sp_head::execute_procedure(THD *thd, List<Item> *args)
List_iterator<Item> li(*args);
Item *it;
// Copy back all OUT or INOUT values to the previous frame, or
// set global user variables
/*
Copy back all OUT or INOUT values to the previous frame, or
set global user variables
*/
for (uint i = 0 ; (it= li++) && i < params ; i++)
{
sp_pvar_t *pvar= m_pcont->find_pvar(i);
......@@ -987,8 +999,10 @@ sp_head::execute_procedure(THD *thd, List<Item> *args)
octx->set_item(offset, copy);
if (orig && copy == orig)
{
// A reused item slot, where the constructor put it in the
// free_list, so we have to restore the list.
/*
A reused item slot, where the constructor put it in the
free_list, so we have to restore the list.
*/
thd->free_list= o_free_list;
copy->next= o_item_next;
}
......@@ -1420,8 +1434,6 @@ sp_head::opt_mark(uint ip)
ip= i->opt_mark(this);
}
// ------------------------------------------------------------------
/*
Prepare LEX and thread for execution of instruction, if requested open
......@@ -1513,6 +1525,7 @@ sp_lex_keeper::reset_lex_and_exec_core(THD *thd, uint *nextp,
thd->proc_info="closing tables";
close_thread_tables(thd);
thd->proc_info= 0;
if (m_lex->query_tables_own_last)
{
......@@ -1549,9 +1562,10 @@ sp_lex_keeper::reset_lex_and_exec_core(THD *thd, uint *nextp,
}
//
// sp_instr
//
/*
sp_instr class functions
*/
int sp_instr::exec_core(THD *thd, uint *nextp)
{
DBUG_ASSERT(0);
......@@ -1559,9 +1573,10 @@ int sp_instr::exec_core(THD *thd, uint *nextp)
}
//
// sp_instr_stmt
//
/*
sp_instr_stmt class functions
*/
int
sp_instr_stmt::execute(THD *thd, uint *nextp)
{
......@@ -1606,9 +1621,11 @@ sp_instr_stmt::exec_core(THD *thd, uint *nextp)
return res;
}
//
// sp_instr_set
//
/*
sp_instr_set class functions
*/
int
sp_instr_set::execute(THD *thd, uint *nextp)
{
......@@ -1618,6 +1635,7 @@ sp_instr_set::execute(THD *thd, uint *nextp)
DBUG_RETURN(m_lex_keeper.reset_lex_and_exec_core(thd, nextp, TRUE, this));
}
int
sp_instr_set::exec_core(THD *thd, uint *nextp)
{
......@@ -1638,9 +1656,10 @@ sp_instr_set::print(String *str)
}
//
// sp_instr_set_trigger_field
//
/*
sp_instr_set_trigger_field class functions
*/
int
sp_instr_set_trigger_field::execute(THD *thd, uint *nextp)
{
......@@ -1671,9 +1690,11 @@ sp_instr_set_trigger_field::print(String *str)
value->print(str);
}
//
// sp_instr_jump
//
/*
sp_instr_jump class functions
*/
int
sp_instr_jump::execute(THD *thd, uint *nextp)
{
......@@ -1732,9 +1753,10 @@ sp_instr_jump::opt_move(uint dst, List<sp_instr> *bp)
m_ip= dst;
}
//
// sp_instr_jump_if
//
/*
sp_instr_jump_if class functions
*/
int
sp_instr_jump_if::execute(THD *thd, uint *nextp)
......@@ -1790,9 +1812,11 @@ sp_instr_jump_if::opt_mark(sp_head *sp)
return m_ip+1;
}
//
// sp_instr_jump_if_not
//
/*
sp_instr_jump_if_not class functions
*/
int
sp_instr_jump_if_not::execute(THD *thd, uint *nextp)
{
......@@ -1823,6 +1847,7 @@ sp_instr_jump_if_not::exec_core(THD *thd, uint *nextp)
return res;
}
void
sp_instr_jump_if_not::print(String *str)
{
......@@ -1833,6 +1858,7 @@ sp_instr_jump_if_not::print(String *str)
m_expr->print(str);
}
uint
sp_instr_jump_if_not::opt_mark(sp_head *sp)
{
......@@ -1848,9 +1874,10 @@ sp_instr_jump_if_not::opt_mark(sp_head *sp)
return m_ip+1;
}
//
// sp_instr_freturn
//
/*
sp_instr_freturn class functions
*/
int
sp_instr_freturn::execute(THD *thd, uint *nextp)
......@@ -1889,9 +1916,10 @@ sp_instr_freturn::print(String *str)
m_value->print(str);
}
//
// sp_instr_hpush_jump
//
/*
sp_instr_hpush_jump class functions
*/
int
sp_instr_hpush_jump::execute(THD *thd, uint *nextp)
{
......@@ -1935,9 +1963,11 @@ sp_instr_hpush_jump::opt_mark(sp_head *sp)
return m_ip+1;
}
//
// sp_instr_hpop
//
/*
sp_instr_hpop class functions
*/
int
sp_instr_hpop::execute(THD *thd, uint *nextp)
{
......@@ -1962,9 +1992,10 @@ sp_instr_hpop::backpatch(uint dest, sp_pcontext *dst_ctx)
}
//
// sp_instr_hreturn
//
/*
sp_instr_hreturn class functions
*/
int
sp_instr_hreturn::execute(THD *thd, uint *nextp)
{
......@@ -1980,6 +2011,7 @@ sp_instr_hreturn::execute(THD *thd, uint *nextp)
DBUG_RETURN(0);
}
void
sp_instr_hreturn::print(String *str)
{
......@@ -1990,6 +2022,7 @@ sp_instr_hreturn::print(String *str)
str->qs_append(m_dest);
}
uint
sp_instr_hreturn::opt_mark(sp_head *sp)
{
......@@ -2003,9 +2036,10 @@ sp_instr_hreturn::opt_mark(sp_head *sp)
}
//
// sp_instr_cpush
//
/*
sp_instr_cpush class functions
*/
int
sp_instr_cpush::execute(THD *thd, uint *nextp)
{
......@@ -2015,15 +2049,18 @@ sp_instr_cpush::execute(THD *thd, uint *nextp)
DBUG_RETURN(0);
}
void
sp_instr_cpush::print(String *str)
{
str->append("cpush");
}
//
// sp_instr_cpop
//
/*
sp_instr_cpop class functions
*/
int
sp_instr_cpop::execute(THD *thd, uint *nextp)
{
......@@ -2033,6 +2070,7 @@ sp_instr_cpop::execute(THD *thd, uint *nextp)
DBUG_RETURN(0);
}
void
sp_instr_cpop::print(String *str)
{
......@@ -2047,9 +2085,11 @@ sp_instr_cpop::backpatch(uint dest, sp_pcontext *dst_ctx)
m_count= m_ctx->diff_cursors(dst_ctx);
}
//
// sp_instr_copen
//
/*
sp_instr_copen class functions
*/
int
sp_instr_copen::execute(THD *thd, uint *nextp)
{
......@@ -2117,9 +2157,11 @@ sp_instr_copen::print(String *str)
str->qs_append(m_cursor);
}
//
// sp_instr_cclose
//
/*
sp_instr_cclose class functions
*/
int
sp_instr_cclose::execute(THD *thd, uint *nextp)
{
......@@ -2135,6 +2177,7 @@ sp_instr_cclose::execute(THD *thd, uint *nextp)
DBUG_RETURN(res);
}
void
sp_instr_cclose::print(String *str)
{
......@@ -2143,9 +2186,11 @@ sp_instr_cclose::print(String *str)
str->qs_append(m_cursor);
}
//
// sp_instr_cfetch
//
/*
sp_instr_cfetch class functions
*/
int
sp_instr_cfetch::execute(THD *thd, uint *nextp)
{
......@@ -2161,6 +2206,7 @@ sp_instr_cfetch::execute(THD *thd, uint *nextp)
DBUG_RETURN(res);
}
void
sp_instr_cfetch::print(String *str)
{
......@@ -2178,9 +2224,11 @@ sp_instr_cfetch::print(String *str)
}
}
//
// sp_instr_error
//
/*
sp_instr_error class functions
*/
int
sp_instr_error::execute(THD *thd, uint *nextp)
{
......@@ -2191,6 +2239,7 @@ sp_instr_error::execute(THD *thd, uint *nextp)
DBUG_RETURN(-1);
}
void
sp_instr_error::print(String *str)
{
......@@ -2199,12 +2248,12 @@ sp_instr_error::print(String *str)
str->qs_append(m_errcode);
}
/* ------------------------------------------------------------------ */
/* ------------------------------------------------------------------ */
//
// Security context swapping
//
/*
Security context swapping
*/
#ifndef NO_EMBEDDED_ACCESS_CHECKS
void
......@@ -2453,11 +2502,12 @@ sp_head::add_used_tables_to_table_list(THD *thd,
DBUG_RETURN(result);
}
/*
* Simple function for adding an explicetly named (systems) table to
* the global table list, e.g. "mysql", "proc".
*
*/
Simple function for adding an explicetly named (systems) table to
the global table list, e.g. "mysql", "proc".
*/
TABLE_LIST *
sp_add_to_query_tables(THD *thd, LEX *lex,
const char *db, const char *name,
......
sql/sql_base.cc
View file @ 7b80e625
......@@ -1919,8 +1919,7 @@ int open_tables(THD *thd, TABLE_LIST **start, uint *counter)
has added its base tables after itself, adjust the boundary pointer
accordingly.
*/
if (query_tables_last_own &&
query_tables_last_own == &(tables->next_global) &&
if (query_tables_last_own == &(tables->next_global) &&
tables->view->query_tables)
query_tables_last_own= tables->view->query_tables_last;
......
sql/sql_parse.cc
View file @ 7b80e625
......@@ -1863,17 +1863,18 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
}
#endif
case COM_REFRESH:
{
statistic_increment(thd->status_var.com_stat[SQLCOM_FLUSH],
&LOCK_status);
ulong options= (ulong) (uchar) packet[0];
if (check_global_access(thd,RELOAD_ACL))
break;
mysql_log.write(thd,command,NullS);
if (!reload_acl_and_cache(thd, options, (TABLE_LIST*) 0, NULL))
send_ok(thd);
{
bool not_used;
statistic_increment(thd->status_var.com_stat[SQLCOM_FLUSH],
&LOCK_status);
ulong options= (ulong) (uchar) packet[0];
if (check_global_access(thd,RELOAD_ACL))
break;
}
mysql_log.write(thd,command,NullS);
if (!reload_acl_and_cache(thd, options, (TABLE_LIST*) 0, &not_used))
send_ok(thd);
break;
}
#ifndef EMBEDDED_LIBRARY
case COM_SHUTDOWN:
{
......@@ -3822,13 +3823,13 @@ end_with_restore_list:
lex->no_write_to_binlog= 1;
case SQLCOM_FLUSH:
{
bool write_to_binlog;
if (check_global_access(thd,RELOAD_ACL) || check_db_used(thd, all_tables))
goto error;
/*
reload_acl_and_cache() will tell us if we are allowed to write to the
binlog or not.
*/
bool write_to_binlog;
if (!reload_acl_and_cache(thd, lex->type, first_table, &write_to_binlog))
{
/*
......@@ -6383,13 +6384,13 @@ void add_join_natural(TABLE_LIST *a,TABLE_LIST *b)
tables Tables to flush (if any)
write_to_binlog Depending on 'options', it may be very bad to write the
query to the binlog (e.g. FLUSH SLAVE); this is a
pointer where, if it is not NULL, reload_acl_and_cache()
will put 0 if it thinks we really should not write to
the binlog. Otherwise it will put 1.
pointer where reload_acl_and_cache() will put 0 if
it thinks we really should not write to the binlog.
Otherwise it will put 1.
RETURN
0 ok
!=0 error
!=0 error. thd->killed or thd->net.report_error is set
*/
bool reload_acl_and_cache(THD *thd, ulong options, TABLE_LIST *tables,
......@@ -6475,10 +6476,10 @@ bool reload_acl_and_cache(THD *thd, ulong options, TABLE_LIST *tables,
*/
tmp_write_to_binlog= 0;
if (lock_global_read_lock(thd))
return 1;
return 1; // Killed
result=close_cached_tables(thd,(options & REFRESH_FAST) ? 0 : 1,
tables);
if (make_global_read_lock_block_commit(thd))
if (make_global_read_lock_block_commit(thd)) // Killed
{
/* Don't leave things in a half-locked state */
unlock_global_read_lock(thd);
......@@ -6500,7 +6501,10 @@ bool reload_acl_and_cache(THD *thd, ulong options, TABLE_LIST *tables,
{
tmp_write_to_binlog= 0;
if (reset_master(thd))
{
result=1;
thd->fatal_error(); // Ensure client get error
}
}
#endif
#ifdef OPENSSL
......@@ -6522,8 +6526,7 @@ bool reload_acl_and_cache(THD *thd, ulong options, TABLE_LIST *tables,
#endif
if (options & REFRESH_USER_RESOURCES)
reset_mqh((LEX_USER *) NULL);
if (write_to_binlog)
*write_to_binlog= tmp_write_to_binlog;
*write_to_binlog= tmp_write_to_binlog;
return result;
}
......
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