diff --git a/include/mysql_com.h b/include/mysql_com.h index fc03d98194b639d0c1ad698604f3328fd9faf028..94b34c1c3f07f338fd2d52a11b812cf6e53c3d43 100644 --- a/include/mysql_com.h +++ b/include/mysql_com.h @@ -387,11 +387,11 @@ typedef struct st_udf_args typedef struct st_udf_init { - my_bool maybe_null; /* 1 if function can return NULL */ - unsigned int decimals; /* for real functions */ - unsigned long max_length; /* For string functions */ - char *ptr; /* free pointer for function data */ - my_bool const_item; /* 0 if result is independent of arguments */ + my_bool maybe_null; /* 1 if function can return NULL */ + unsigned int decimals; /* for real functions */ + unsigned long max_length; /* For string functions */ + char *ptr; /* free pointer for function data */ + my_bool const_item; /* 1 if function always returns the same value */ } UDF_INIT; /* TODO: add a notion for determinism of the UDF. diff --git a/libmysqld/lib_sql.cc b/libmysqld/lib_sql.cc index 7ac663480c897196b21dc5bc06778fc09a5dd982..ce692169a5fd3f751130a30598cd9dc104af947e 100644 --- a/libmysqld/lib_sql.cc +++ b/libmysqld/lib_sql.cc @@ -73,6 +73,7 @@ void embedded_get_error(MYSQL *mysql, MYSQL_DATA *data) net->last_errno= ei->last_errno; strmake(net->last_error, ei->info, sizeof(net->last_error)); memcpy(net->sqlstate, ei->sqlstate, sizeof(net->sqlstate)); + mysql->server_status= ei->server_status; my_free((gptr) data, MYF(0)); } @@ -1027,6 +1028,7 @@ void net_send_error_packet(THD *thd, uint sql_errno, const char *err) ei->last_errno= sql_errno; strmake(ei->info, err, sizeof(ei->info)-1); strmov(ei->sqlstate, mysql_errno_to_sqlstate(sql_errno)); + ei->server_status= thd->server_status; thd->cur_data= 0; } diff --git a/mysql-test/r/federated.result b/mysql-test/r/federated.result index 2e7d0ddcea77f89d37f4525a14f7779a44247be2..a005db4deac0ea5174d8392059c8a15b6d917532 100644 --- a/mysql-test/r/federated.result +++ b/mysql-test/r/federated.result @@ -1934,6 +1934,117 @@ select * from federated.t2; a 1 drop table federated.t1, federated.t2; +create table t1 (a varchar(256)); +drop view if exists v1; +create view v1 as select a from t1; +create table t1 +(a varchar(256)) engine=federated +connection='mysql://root@127.0.0.1:SLAVE_PORT/test/v1'; +select 1 from t1 order by a; +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +1 +drop table t1; +drop table t1; +drop view v1; DROP TABLE IF EXISTS federated.t1; DROP DATABASE IF EXISTS federated; DROP TABLE IF EXISTS federated.t1; diff --git a/mysql-test/t/federated.test b/mysql-test/t/federated.test index cc66a6ab4bcade44e1317a59fd218eeed801046f..d4f22650a32132f0c56bfe790a10839b0a1327ea 100644 --- a/mysql-test/t/federated.test +++ b/mysql-test/t/federated.test @@ -1686,4 +1686,35 @@ insert into federated.t1 (a) values (1); select * from federated.t2; drop table federated.t1, federated.t2; +# +# Bug #32374 crash with filesort when selecting from federated table and view +# +connection slave; +create table t1 (a varchar(256)); +--disable_warnings +drop view if exists v1; +--enable_warnings +create view v1 as select a from t1; +--disable_query_log +let $n= 100; +while ($n) +{ + insert into t1 values (repeat('a',200)); + dec $n; +} +--enable_query_log + +connection master; +--replace_result $SLAVE_MYPORT SLAVE_PORT +eval create table t1 + (a varchar(256)) engine=federated + connection='mysql://root@127.0.0.1:$SLAVE_MYPORT/test/v1'; + +select 1 from t1 order by a; +drop table t1; +connection slave; +drop table t1; +drop view v1; + + source include/federated_cleanup.inc; diff --git a/sql/ha_federated.cc b/sql/ha_federated.cc index d7f2309657b3a9d81ec10d33ac44e05edba07030..ac1e0962ffbb177a343f09ae630f8f45d73d1ad0 100644 --- a/sql/ha_federated.cc +++ b/sql/ha_federated.cc @@ -2166,6 +2166,24 @@ error: } +/* + This method is used exlusevely by filesort() to check if we + can create sorting buffers of necessary size. + If the handler returns more records that it declares + here server can just crash on filesort(). + We cannot guarantee that's not going to happen with + the FEDERATED engine, as we have records==0 always if the + client is a VIEW, and for the table the number of + records can inpredictably change during execution. + So we return maximum possible value here. +*/ + +ha_rows ha_federated::estimate_rows_upper_bound() +{ + return HA_POS_ERROR; +} + + /* Initialized at each key walk (called multiple times unlike rnd_init()) */ int ha_federated::index_init(uint keynr) diff --git a/sql/ha_federated.h b/sql/ha_federated.h index dc4f976c5786626c07159deeaf8769ef01bad984..349c596ae5a8d5024ccc2bfb75d20bcf254c69bf 100644 --- a/sql/ha_federated.h +++ b/sql/ha_federated.h @@ -277,6 +277,7 @@ public: int update_row(const byte *old_data, byte *new_data); int delete_row(const byte *buf); int index_init(uint keynr); + ha_rows estimate_rows_upper_bound(); int index_read(byte *buf, const byte *key, uint key_len, enum ha_rkey_function find_flag); int index_read_idx(byte *buf, uint idx, const byte *key, diff --git a/sql/mysqld.cc b/sql/mysqld.cc index 4c459d34a55b73638ee322aed39d75bf4920075a..4e06a8d1551c97d2705ec16138cceb041d549544 100644 --- a/sql/mysqld.cc +++ b/sql/mysqld.cc @@ -184,7 +184,7 @@ typedef fp_except fp_except_t; this on freebsd */ -inline void reset_floating_point_exceptions() +inline void set_proper_floating_point_mode() { /* Don't fall for overflow, underflow,divide-by-zero or loss of precision */ #if defined(__i386__) @@ -195,8 +195,22 @@ inline void reset_floating_point_exceptions() FP_X_IMP)); #endif } +#elif defined(__sgi) +/* for IRIX to use set_fpc_csr() */ +#include <sys/fpu.h> + +inline void set_proper_floating_point_mode() +{ + /* Enable denormalized DOUBLE values support for IRIX */ + { + union fpc_csr n; + n.fc_word = get_fpc_csr(); + n.fc_struct.flush = 0; + set_fpc_csr(n.fc_word); + } +} #else -#define reset_floating_point_exceptions() +#define set_proper_floating_point_mode() #endif /* __FreeBSD__ && HAVE_IEEEFP_H */ } /* cplusplus */ @@ -3125,7 +3139,7 @@ static int init_server_components() query_cache_init(); query_cache_resize(query_cache_size); randominit(&sql_rand,(ulong) server_start_time,(ulong) server_start_time/2); - reset_floating_point_exceptions(); + set_proper_floating_point_mode(); init_thr_lock(); #ifdef HAVE_REPLICATION init_slave_list(); diff --git a/sql/protocol.cc b/sql/protocol.cc index 2bdbe83eea1c72d62b711f8e749133e88e31f9aa..ac562a9f5ab7f8ab1f712097849f186b6b6ecb12 100644 --- a/sql/protocol.cc +++ b/sql/protocol.cc @@ -110,13 +110,14 @@ void net_send_error(THD *thd, uint sql_errno, const char *err) push_warning(thd, MYSQL_ERROR::WARN_LEVEL_ERROR, sql_errno, err); } + /* Abort multi-result sets */ + thd->server_status&= ~SERVER_MORE_RESULTS_EXISTS; + net_send_error_packet(thd, sql_errno, err); thd->is_fatal_error=0; // Error message is given thd->net.report_error= 0; - /* Abort multi-result sets */ - thd->server_status&= ~SERVER_MORE_RESULTS_EXISTS; DBUG_VOID_RETURN; } diff --git a/tests/mysql_client_test.c b/tests/mysql_client_test.c index c0b8bd610f463d024ab5b1c92b36ca3856ef5014..9cc2af25529ed95aed8814c2ee1b748569380b4f 100644 --- a/tests/mysql_client_test.c +++ b/tests/mysql_client_test.c @@ -5643,6 +5643,20 @@ DROP TABLE IF EXISTS test_multi_tab"; (void) my_process_result_set(result); mysql_free_result(result); + /* + Check if errors in one of the queries handled properly. + */ + rc= mysql_query(mysql_local, "select 1; select * from not_existing_table"); + myquery(rc); + result= mysql_store_result(mysql_local); + mysql_free_result(result); + + rc= mysql_next_result(mysql_local); + DIE_UNLESS(rc > 0); + + rc= mysql_next_result(mysql_local); + DIE_UNLESS(rc < 0); + mysql_close(mysql_local); }