From b4fc7c7fbf643b39f3686bfe344b21cdd7233fb5 Mon Sep 17 00:00:00 2001 From: unknown Date: Tue, 10 Feb 2004 17:09:59 +0400 Subject: [PATCH 1/3] Fix for #2208 (multi-query returns wrong result in embedded library) now we execute only one first select during mysql_real_query others - during 'mysql_next_result' include/mysql.h: 'virtual' next_result added libmysql/client_settings.h: cli_next_result declaration added libmysql/libmysql.c: mysql_next_result now works in embedded library as well libmysqld/lib_sql.cc: emb_next_result implemented sql/sql_class.h: fields to store the rest of the query added sql/sql_parse.cc: Saving the rest of the query added for embedded case --- include/mysql.h | 1 + libmysql/client_settings.h | 1 + libmysql/libmysql.c | 25 ++++++++++++++++--------- libmysqld/lib_sql.cc | 20 +++++++++++++++++++- sql/sql_class.h | 2 ++ sql/sql_parse.cc | 13 +++++++++++-- 6 files changed, 50 insertions(+), 12 deletions(-) diff --git a/include/mysql.h b/include/mysql.h index d1b467f9649..3679b65ba4a 100644 --- a/include/mysql.h +++ b/include/mysql.h @@ -575,6 +575,7 @@ typedef struct st_mysql_methods int (*unbuffered_fetch)(MYSQL *mysql, char **row); void (*free_embedded_thd)(MYSQL *mysql); const char *(*read_statistic)(MYSQL *mysql); + int (*next_result)(MYSQL *mysql); #endif } MYSQL_METHODS; diff --git a/libmysql/client_settings.h b/libmysql/client_settings.h index b1a85f567f9..6a7da0bcc81 100644 --- a/libmysql/client_settings.h +++ b/libmysql/client_settings.h @@ -58,6 +58,7 @@ int cli_stmt_execute(MYSQL_STMT *stmt); MYSQL_DATA * cli_read_binary_rows(MYSQL_STMT *stmt); int cli_unbuffered_fetch(MYSQL *mysql, char **row); const char * cli_read_statistic(MYSQL *mysql); +int cli_next_result(MYSQL *mysql); #ifdef EMBEDDED_LIBRARY int init_embedded_server(int argc, char **argv, char **groups); diff --git a/libmysql/libmysql.c b/libmysql/libmysql.c index 977657f8998..a3e88ccd03d 100644 --- a/libmysql/libmysql.c +++ b/libmysql/libmysql.c @@ -3511,6 +3511,21 @@ my_bool STDCALL mysql_more_results(MYSQL *mysql) Reads and returns the next query results */ +int cli_next_result(MYSQL *mysql) +{ + DBUG_ENTER("cli_next_result"); + + mysql->net.last_error[0]= 0; + mysql->net.last_errno= 0; + strmov(mysql->net.sqlstate, not_error_sqlstate); + mysql->affected_rows= ~(my_ulonglong) 0; + + if (mysql->last_used_con->server_status & SERVER_MORE_RESULTS_EXISTS) + DBUG_RETURN((*mysql->methods->read_query_result)(mysql)); + + DBUG_RETURN(-1); /* No more results */ +} + int STDCALL mysql_next_result(MYSQL *mysql) { DBUG_ENTER("mysql_next_result"); @@ -3523,15 +3538,7 @@ int STDCALL mysql_next_result(MYSQL *mysql) DBUG_RETURN(1); } - mysql->net.last_error[0]= 0; - mysql->net.last_errno= 0; - strmov(mysql->net.sqlstate, not_error_sqlstate); - mysql->affected_rows= ~(my_ulonglong) 0; - - if (mysql->last_used_con->server_status & SERVER_MORE_RESULTS_EXISTS) - DBUG_RETURN((*mysql->methods->read_query_result)(mysql)); - - DBUG_RETURN(-1); /* No more results */ + DBUG_RETURN((*mysql->methods->next_result)(mysql)); } diff --git a/libmysqld/lib_sql.cc b/libmysqld/lib_sql.cc index e36e878d4b1..81235ce0c22 100644 --- a/libmysqld/lib_sql.cc +++ b/libmysqld/lib_sql.cc @@ -245,6 +245,18 @@ static MYSQL_RES * emb_mysql_store_result(MYSQL *mysql) return mysql_store_result(mysql); } +int emb_next_result(MYSQL *mysql) +{ + THD *thd= (THD*)mysql->thd; + DBUG_ENTER("emb_next_result"); + + if (emb_advanced_command(mysql, COM_QUERY,0,0, + thd->query_rest,thd->query_rest_length,1) + || emb_mysql_read_query_result(mysql)) + DBUG_RETURN(1); + + DBUG_RETURN(0); /* No more results */ +} MYSQL_METHODS embedded_methods= { @@ -259,7 +271,8 @@ MYSQL_METHODS embedded_methods= emb_read_binary_rows, emb_unbuffered_fetch, emb_free_embedded_thd, - emb_read_statistic + emb_read_statistic, + emb_next_result }; C_MODE_END @@ -749,6 +762,11 @@ bool Protocol::net_store_data(const char *from, uint length) return false; } +char *memdup_mysql(struct st_mysql *mysql, const char*data, int length) +{ + return memdup_root(&mysql->field_alloc, data, length); +} + #if 0 /* The same as Protocol::net_store_data but does the converstion */ diff --git a/sql/sql_class.h b/sql/sql_class.h index 7971137d848..879d75fe26a 100644 --- a/sql/sql_class.h +++ b/sql/sql_class.h @@ -565,6 +565,8 @@ public: struct st_mysql_bind *client_params; char *extra_data; ulong extra_length; + char *query_rest; + uint32 query_rest_length; #endif NET net; // client connection descriptor MEM_ROOT warn_root; // For warnings and errors diff --git a/sql/sql_parse.cc b/sql/sql_parse.cc index 9d742995976..564c22dd004 100644 --- a/sql/sql_parse.cc +++ b/sql/sql_parse.cc @@ -48,6 +48,7 @@ extern "C" int gethostname(char *name, int namelen); #endif +char *memdup_mysql(struct st_mysql *mysql, const char*data, int length); static int check_for_max_user_connections(THD *thd, USER_CONN *uc); static void decrease_user_connections(USER_CONN *uc); static bool check_db_used(THD *thd,TABLE_LIST *tables); @@ -1397,11 +1398,13 @@ bool dispatch_command(enum enum_server_command command, THD *thd, char *packet= thd->lex->found_colon; /* Multiple queries exits, execute them individually + in embedded server - just store them to be executed later */ +#ifndef EMBEDDED_LIBRARY if (thd->lock || thd->open_tables || thd->derived_tables) close_thread_tables(thd); - - ulong length= thd->query_length-(ulong)(thd->lex->found_colon-thd->query); +#endif + ulong length= thd->query_length-(ulong)(packet-thd->query); /* Remove garbage at start of query */ while (my_isspace(thd->charset(), *packet) && length > 0) @@ -1414,7 +1417,13 @@ bool dispatch_command(enum enum_server_command command, THD *thd, VOID(pthread_mutex_lock(&LOCK_thread_count)); thd->query_id= query_id++; VOID(pthread_mutex_unlock(&LOCK_thread_count)); +#ifndef EMBEDDED_LIBRARY mysql_parse(thd, packet, length); +#else + thd->query_rest= (char*)memdup_mysql(thd->mysql, packet, length); + thd->query_rest_length= length; + break; +#endif /*EMBEDDED_LIBRARY*/ } if (!(specialflag & SPECIAL_NO_PRIOR)) From e5c142a412f1c2ead19f8d8612e4278ffe92495e Mon Sep 17 00:00:00 2001 From: unknown Date: Wed, 11 Feb 2004 16:35:56 +0400 Subject: [PATCH 2/3] Addition to the fix for #2208 Made code shorter and more correct libmysql/client_settings.h: cli_next_result removed libmysql/libmysql.c: cli_next_result removed --- libmysql/client_settings.h | 1 - libmysql/libmysql.c | 26 +++++++++----------------- 2 files changed, 9 insertions(+), 18 deletions(-) diff --git a/libmysql/client_settings.h b/libmysql/client_settings.h index 6a7da0bcc81..b1a85f567f9 100644 --- a/libmysql/client_settings.h +++ b/libmysql/client_settings.h @@ -58,7 +58,6 @@ int cli_stmt_execute(MYSQL_STMT *stmt); MYSQL_DATA * cli_read_binary_rows(MYSQL_STMT *stmt); int cli_unbuffered_fetch(MYSQL *mysql, char **row); const char * cli_read_statistic(MYSQL *mysql); -int cli_next_result(MYSQL *mysql); #ifdef EMBEDDED_LIBRARY int init_embedded_server(int argc, char **argv, char **groups); diff --git a/libmysql/libmysql.c b/libmysql/libmysql.c index a3e88ccd03d..27eb9bd3857 100644 --- a/libmysql/libmysql.c +++ b/libmysql/libmysql.c @@ -3510,22 +3510,6 @@ my_bool STDCALL mysql_more_results(MYSQL *mysql) /* Reads and returns the next query results */ - -int cli_next_result(MYSQL *mysql) -{ - DBUG_ENTER("cli_next_result"); - - mysql->net.last_error[0]= 0; - mysql->net.last_errno= 0; - strmov(mysql->net.sqlstate, not_error_sqlstate); - mysql->affected_rows= ~(my_ulonglong) 0; - - if (mysql->last_used_con->server_status & SERVER_MORE_RESULTS_EXISTS) - DBUG_RETURN((*mysql->methods->read_query_result)(mysql)); - - DBUG_RETURN(-1); /* No more results */ -} - int STDCALL mysql_next_result(MYSQL *mysql) { DBUG_ENTER("mysql_next_result"); @@ -3538,7 +3522,15 @@ int STDCALL mysql_next_result(MYSQL *mysql) DBUG_RETURN(1); } - DBUG_RETURN((*mysql->methods->next_result)(mysql)); + mysql->net.last_error[0]= 0; + mysql->net.last_errno= 0; + strmov(mysql->net.sqlstate, not_error_sqlstate); + mysql->affected_rows= ~(my_ulonglong) 0; + + if (mysql->last_used_con->server_status & SERVER_MORE_RESULTS_EXISTS) + DBUG_RETURN((*mysql->methods->next_result)(mysql)); + + DBUG_RETURN(-1); /* No more results */ } From b268952faf2a3a3eca9794018f1a368a5653aede Mon Sep 17 00:00:00 2001 From: unknown Date: Wed, 11 Feb 2004 16:53:39 +0400 Subject: [PATCH 3/3] Bug 2701: Function CHARSET() inconsistency CONVERT3 was removed, it was for test purposes, and rather harmful. --- mysql-test/r/cast.result | 6 -- mysql-test/r/ctype_many.result | 123 -------------------------------- mysql-test/r/func_system.result | 14 ++++ mysql-test/t/cast.test | 2 - mysql-test/t/ctype_many.test | 5 -- mysql-test/t/func_system.test | 6 ++ sql/item_strfunc.cc | 40 +---------- sql/item_strfunc.h | 14 +--- sql/sql_yacc.yy | 2 - 9 files changed, 24 insertions(+), 188 deletions(-) diff --git a/mysql-test/r/cast.result b/mysql-test/r/cast.result index c60d8e19fb4..877a349d188 100644 --- a/mysql-test/r/cast.result +++ b/mysql-test/r/cast.result @@ -64,12 +64,6 @@ test select cast(_koi8r'ÔÅÓÔ' as char character set cp1251); cast(_koi8r'ÔÅÓÔ' as char character set cp1251) òåñò -select convert(_latin1'test', "latin1_german1_ci", "latin1_swedish_ci"); -convert(_latin1'test', "latin1_german1_ci", "latin1_swedish_ci") -test -select convert(_koi8r'ÔÅÓÔ', "koi8r_general_ci", "cp1251_general_ci"); -convert(_koi8r'ÔÅÓÔ', "koi8r_general_ci", "cp1251_general_ci") -òåñò create table t1 select cast(_koi8r'ÔÅÓÔ' as char character set cp1251) as t; show create table t1; Table Create Table diff --git a/mysql-test/r/ctype_many.result b/mysql-test/r/ctype_many.result index 173d41ecdd1..8bfc6e98226 100644 --- a/mysql-test/r/ctype_many.result +++ b/mysql-test/r/ctype_many.result @@ -340,129 +340,6 @@ CYR CAPIT SOFT SIGN CYR CAPIT E ü ü CYR CAPIT YU à à CYR CAPIT YA ñ ñ -select CONVERT(koi8_ru_f, 'cp1251_general_ci', 'utf8_general_ci'), comment from t1; -CONVERT(koi8_ru_f, 'cp1251_general_ci', 'utf8_general_ci') comment -a LAT SMALL A -b LAT SMALL B -c LAT SMALL C -d LAT SMALL D -e LAT SMALL E -f LAT SMALL F -g LAT SMALL G -h LAT SMALL H -i LAT SMALL I -j LAT SMALL J -k LAT SMALL K -l LAT SMALL L -m LAT SMALL M -n LAT SMALL N -o LAT SMALL O -p LAT SMALL P -q LAT SMALL Q -r LAT SMALL R -s LAT SMALL S -t LAT SMALL T -u LAT SMALL U -v LAT SMALL V -w LAT SMALL W -x LAT SMALL X -y LAT SMALL Y -z LAT SMALL Z -A LAT CAPIT A -B LAT CAPIT B -C LAT CAPIT C -D LAT CAPIT D -E LAT CAPIT E -F LAT CAPIT F -G LAT CAPIT G -H LAT CAPIT H -I LAT CAPIT I -J LAT CAPIT J -K LAT CAPIT K -L LAT CAPIT L -M LAT CAPIT M -N LAT CAPIT N -O LAT CAPIT O -P LAT CAPIT P -Q LAT CAPIT Q -R LAT CAPIT R -S LAT CAPIT S -T LAT CAPIT T -U LAT CAPIT U -V LAT CAPIT V -W LAT CAPIT W -X LAT CAPIT X -Y LAT CAPIT Y -Z LAT CAPIT Z -â CYR SMALL A -÷ CYR SMALL BE -þ CYR SMALL VE -ú CYR SMALL GE -ä CYR SMALL DE -å CYR SMALL IE -? CYR SMALL IO -ã CYR SMALL ZHE -ÿ CYR SMALL ZE -ê CYR SMALL I -ì CYR SMALL KA -í CYR SMALL EL -î CYR SMALL EM -ï CYR SMALL EN -ð CYR SMALL O -ò CYR SMALL PE -ô CYR SMALL ER -õ CYR SMALL ES -æ CYR SMALL TE -è CYR SMALL U -ö CYR SMALL EF -é CYR SMALL HA -ç CYR SMALL TSE -à CYR SMALL CHE -ù CYR SMALL SHA -ü CYR SMALL SCHA -ñ CYR SMALL HARD SIGN -ý CYR SMALL YERU -û CYR SMALL SOFT SIGN -ø CYR SMALL E -á CYR SMALL YU -ó CYR SMALL YA -Â CYR CAPIT A -× CYR CAPIT BE -Þ CYR CAPIT VE -Ú CYR CAPIT GE -Ä CYR CAPIT DE -Å CYR CAPIT IE -? CYR CAPIT IO -Ã CYR CAPIT ZHE -ß CYR CAPIT ZE -Ê CYR CAPIT I -Ì CYR CAPIT KA -Í CYR CAPIT EL -Î CYR CAPIT EM -Ï CYR CAPIT EN -Ð CYR CAPIT O -Ò CYR CAPIT PE -Ô CYR CAPIT ER -Õ CYR CAPIT ES -Æ CYR CAPIT TE -È CYR CAPIT U -Ö CYR CAPIT EF -É CYR CAPIT HA -Ç CYR CAPIT TSE -À CYR CAPIT CHE -Ù CYR CAPIT SHA -Ü CYR CAPIT SCHA -Ñ CYR CAPIT HARD SIGN -Ý CYR CAPIT YERU -Û CYR CAPIT SOFT SIGN -Ø CYR CAPIT E -Á CYR CAPIT YU -Ó CYR CAPIT YA -explain extended select CONVERT(koi8_ru_f, 'cp1251_general_ci', 'utf8_general_ci'), comment from t1; -id select_type table type possible_keys key key_len ref rows Extra -1 SIMPLE t1 ALL NULL NULL NULL NULL 116 -Warnings: -Note 1003 select high_priority convert(test.t1.koi8_ru_f,_latin1'utf8_general_ci',_latin1'cp1251_general_ci') AS `CONVERT(koi8_ru_f, 'cp1251_general_ci', 'utf8_general_ci')`,test.t1.comment AS `comment` from test.t1 ALTER TABLE t1 ADD bin_f CHAR(32) BYTE NOT NULL; UPDATE t1 SET bin_f=koi8_ru_f; SELECT COUNT(DISTINCT bin_f),COUNT(DISTINCT koi8_ru_f),COUNT(DISTINCT utf8_f) FROM t1; diff --git a/mysql-test/r/func_system.result b/mysql-test/r/func_system.result index a0437ca1c56..338902e3f3a 100644 --- a/mysql-test/r/func_system.result +++ b/mysql-test/r/func_system.result @@ -51,6 +51,20 @@ t1 CREATE TABLE `t1` ( `version` char(40) default NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 drop table t1; +select charset(charset(_utf8'a')), charset(collation(_utf8'a')); +charset(charset(_utf8'a')) charset(collation(_utf8'a')) +utf8 utf8 +select collation(charset(_utf8'a')), collation(collation(_utf8'a')); +collation(charset(_utf8'a')) collation(collation(_utf8'a')) +utf8_general_ci utf8_general_ci +create table t1 select charset(_utf8'a'), collation(_utf8'a'); +show create table t1; +Table Create Table +t1 CREATE TABLE `t1` ( + `charset(_utf8'a')` char(64) character set utf8 NOT NULL default '', + `collation(_utf8'a')` char(64) character set utf8 NOT NULL default '' +) ENGINE=MyISAM DEFAULT CHARSET=latin1 +drop table t1; select TRUE,FALSE,NULL; TRUE FALSE NULL 1 0 NULL diff --git a/mysql-test/t/cast.test b/mysql-test/t/cast.test index ab0242990fc..fab35bb334a 100644 --- a/mysql-test/t/cast.test +++ b/mysql-test/t/cast.test @@ -28,8 +28,6 @@ select CAST(DATE "2004-01-22 21:45:33" AS CHAR(4) BINARY); set names binary; select cast(_latin1'test' as char character set latin2); select cast(_koi8r'ÔÅÓÔ' as char character set cp1251); -select convert(_latin1'test', "latin1_german1_ci", "latin1_swedish_ci"); -select convert(_koi8r'ÔÅÓÔ', "koi8r_general_ci", "cp1251_general_ci"); create table t1 select cast(_koi8r'ÔÅÓÔ' as char character set cp1251) as t; show create table t1; drop table t1; diff --git a/mysql-test/t/ctype_many.test b/mysql-test/t/ctype_many.test index 7b44439aa50..26057e7c997 100644 --- a/mysql-test/t/ctype_many.test +++ b/mysql-test/t/ctype_many.test @@ -147,11 +147,6 @@ UPDATE t1 SET utf8_f=CONVERT(koi8_ru_f USING utf8); SET CHARACTER SET koi8r; SELECT * FROM t1; -# -# codecovarage for Item_func_conv_charset3 -# -select CONVERT(koi8_ru_f, 'cp1251_general_ci', 'utf8_general_ci'), comment from t1; -explain extended select CONVERT(koi8_ru_f, 'cp1251_general_ci', 'utf8_general_ci'), comment from t1; ALTER TABLE t1 ADD bin_f CHAR(32) BYTE NOT NULL; UPDATE t1 SET bin_f=koi8_ru_f; diff --git a/mysql-test/t/func_system.test b/mysql-test/t/func_system.test index f3b9b4ffc3f..a05b80ca56b 100644 --- a/mysql-test/t/func_system.test +++ b/mysql-test/t/func_system.test @@ -23,4 +23,10 @@ create table t1 (version char(40)) select database(), user(), version() as 'vers show create table t1; drop table t1; +select charset(charset(_utf8'a')), charset(collation(_utf8'a')); +select collation(charset(_utf8'a')), collation(collation(_utf8'a')); +create table t1 select charset(_utf8'a'), collation(_utf8'a'); +show create table t1; +drop table t1; + select TRUE,FALSE,NULL; diff --git a/sql/item_strfunc.cc b/sql/item_strfunc.cc index fd1222d5f1a..ed6e44262c7 100644 --- a/sql/item_strfunc.cc +++ b/sql/item_strfunc.cc @@ -2124,42 +2124,6 @@ void Item_func_conv_charset::print(String *str) str->append(')'); } -String *Item_func_conv_charset3::val_str(String *str) -{ - char cs1[30], cs2[30]; - String to_cs_buff(cs1, sizeof(cs1), default_charset_info); - String from_cs_buff(cs2, sizeof(cs2), default_charset_info); - String *arg= args[0]->val_str(str); - String *to_cs= args[1]->val_str(&to_cs_buff); - String *from_cs= args[2]->val_str(&from_cs_buff); - CHARSET_INFO *from_charset; - CHARSET_INFO *to_charset; - - if (!arg || args[0]->null_value || - !to_cs || args[1]->null_value || - !from_cs || args[2]->null_value || - !(from_charset=get_charset_by_name(from_cs->ptr(), MYF(MY_WME))) || - !(to_charset=get_charset_by_name(to_cs->ptr(), MYF(MY_WME)))) - { - null_value= 1; - return 0; - } - - if (str_value.copy(arg->ptr(), arg->length(), from_charset, to_charset)) - { - null_value= 1; - return 0; - } - null_value= 0; - return &str_value; -} - - -void Item_func_conv_charset3::fix_length_and_dec() -{ - max_length = args[0]->max_length; -} - String *Item_func_set_collation::val_str(String *str) { str=args[0]->val_str(str); @@ -2226,7 +2190,7 @@ String *Item_func_charset::val_str(String *str) if ((null_value=(args[0]->null_value || !res->charset()))) return 0; str->copy(res->charset()->csname,strlen(res->charset()->csname), - &my_charset_latin1, default_charset()); + &my_charset_latin1, collation.collation); return str; } @@ -2237,7 +2201,7 @@ String *Item_func_collation::val_str(String *str) if ((null_value=(args[0]->null_value || !res->charset()))) return 0; str->copy(res->charset()->name,strlen(res->charset()->name), - &my_charset_latin1, default_charset()); + &my_charset_latin1, collation.collation); return str; } diff --git a/sql/item_strfunc.h b/sql/item_strfunc.h index 465300e721e..4832ddbd1b1 100644 --- a/sql/item_strfunc.h +++ b/sql/item_strfunc.h @@ -619,16 +619,6 @@ public: void print(String *str) { print_op(str); } }; -class Item_func_conv_charset3 :public Item_str_func -{ -public: - Item_func_conv_charset3(Item *arg1,Item *arg2,Item *arg3) - :Item_str_func(arg1,arg2,arg3) {} - String *val_str(String *); - void fix_length_and_dec(); - const char *func_name() const { return "convert"; } -}; - class Item_func_charset :public Item_str_func { public: @@ -637,8 +627,8 @@ public: const char *func_name() const { return "charset"; } void fix_length_and_dec() { - max_length=40; // should be enough collation.set(system_charset_info); + max_length= 64 * collation.collation->mbmaxlen; // should be enough }; }; @@ -650,8 +640,8 @@ public: const char *func_name() const { return "collation"; } void fix_length_and_dec() { - max_length=40; // should be enough collation.set(system_charset_info); + max_length= 64 * collation.collation->mbmaxlen; // should be enough }; }; diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy index 0dbe8981466..bdeaf5a0b86 100644 --- a/sql/sql_yacc.yy +++ b/sql/sql_yacc.yy @@ -2574,8 +2574,6 @@ simple_expr: } | CONVERT_SYM '(' expr USING charset_name ')' { $$= new Item_func_conv_charset($3,$5); } - | CONVERT_SYM '(' expr ',' expr ',' expr ')' - { $$= new Item_func_conv_charset3($3,$7,$5); } | DEFAULT '(' simple_ident ')' { $$= new Item_default_value($3); } | VALUES '(' simple_ident ')'