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author | Georgi Kodinov <joro@sun.com> | 2009-10-16 13:29:42 +0300 |
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committer | Georgi Kodinov <joro@sun.com> | 2009-10-16 13:29:42 +0300 |
commit | 7b4ef910f7830e85e2bc240b0803b994d6e0446b (patch) | |
tree | 4a635fd50a6abdd9b0c814cb889d2996fc60eb3e /sql/sql_prepare.cc | |
parent | d7cc9194e0d657fb475cf14a3463a976d336b63a (diff) | |
download | mariadb-git-7b4ef910f7830e85e2bc240b0803b994d6e0446b.tar.gz |
Bug #40877: multi statement execution fails in 5.1.30
Implemented the server infrastructure for the fix:
1. Added a function LEX_STRING *thd_query_string(THD) to return
a LEX_STRING structure instead of char *.
This is the function that must be called in innodb instead of
thd_query()
2. Did some encapsulation in THD : aggregated thd_query and
thd_query_length into a LEX_STRING and made accessor and mutator
methods for easy code updating.
3. Updated the server code to use the new methods where applicable.
Diffstat (limited to 'sql/sql_prepare.cc')
-rw-r--r-- | sql/sql_prepare.cc | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/sql/sql_prepare.cc b/sql/sql_prepare.cc index c1839b7220f..3f1727ccb39 100644 --- a/sql/sql_prepare.cc +++ b/sql/sql_prepare.cc @@ -752,7 +752,7 @@ static bool insert_params_with_log(Prepared_statement *stmt, uchar *null_array, const String *res; DBUG_ENTER("insert_params_with_log"); - if (query->copy(stmt->query, stmt->query_length, default_charset_info)) + if (query->copy(stmt->query(), stmt->query_length(), default_charset_info)) DBUG_RETURN(1); for (Item_param **it= begin; it < end; ++it) @@ -914,7 +914,7 @@ static bool emb_insert_params_with_log(Prepared_statement *stmt, DBUG_ENTER("emb_insert_params_with_log"); - if (query->copy(stmt->query, stmt->query_length, default_charset_info)) + if (query->copy(stmt->query(), stmt->query_length(), default_charset_info)) DBUG_RETURN(1); for (; it < end; ++it, ++client_param) @@ -1065,7 +1065,7 @@ static bool insert_params_from_vars_with_log(Prepared_statement *stmt, DBUG_ENTER("insert_params_from_vars"); - if (query->copy(stmt->query, stmt->query_length, default_charset_info)) + if (query->copy(stmt->query(), stmt->query_length(), default_charset_info)) DBUG_RETURN(1); for (Item_param **it= begin; it < end; ++it) @@ -2457,9 +2457,9 @@ void mysqld_stmt_execute(THD *thd, char *packet_arg, uint packet_length) } #if defined(ENABLED_PROFILING) && defined(COMMUNITY_SERVER) - thd->profiling.set_query_source(stmt->query, stmt->query_length); + thd->profiling.set_query_source(stmt->query(), stmt->query_length()); #endif - DBUG_PRINT("exec_query", ("%s", stmt->query)); + DBUG_PRINT("exec_query", ("%s", stmt->query())); DBUG_PRINT("info",("stmt: 0x%lx", (long) stmt)); sp_cache_flush_obsolete(&thd->sp_proc_cache); @@ -3029,7 +3029,7 @@ bool Prepared_statement::prepare(const char *packet, uint packet_len) old_stmt_arena= thd->stmt_arena; thd->stmt_arena= this; - Parser_state parser_state(thd, thd->query, thd->query_length); + Parser_state parser_state(thd, thd->query(), thd->query_length()); parser_state.m_lip.stmt_prepare_mode= TRUE; lex_start(thd); @@ -3118,7 +3118,7 @@ bool Prepared_statement::prepare(const char *packet, uint packet_len) the general log. */ if (thd->spcont == NULL) - general_log_write(thd, COM_STMT_PREPARE, query, query_length); + general_log_write(thd, COM_STMT_PREPARE, query(), query_length()); } DBUG_RETURN(error); } @@ -3309,7 +3309,7 @@ Prepared_statement::reprepare() return TRUE; error= ((name.str && copy.set_name(&name)) || - copy.prepare(query, query_length) || + copy.prepare(query(), query_length()) || validate_metadata(©)); if (cur_db_changed) @@ -3547,8 +3547,7 @@ bool Prepared_statement::execute(String *expanded_query, bool open_cursor) to point at it even after we restore from backup. This is ok, as expanded query was allocated in thd->mem_root. */ - stmt_backup.query= thd->query; - stmt_backup.query_length= thd->query_length; + stmt_backup.set_query_inner(thd->query(), thd->query_length()); /* At first execution of prepared statement we may perform logical @@ -3573,8 +3572,8 @@ bool Prepared_statement::execute(String *expanded_query, bool open_cursor) Note that multi-statements cannot exist here (they are not supported in prepared statements). */ - if (query_cache_send_result_to_client(thd, thd->query, - thd->query_length) <= 0) + if (query_cache_send_result_to_client(thd, thd->query(), + thd->query_length()) <= 0) { error= mysql_execute_command(thd); } @@ -3619,7 +3618,7 @@ bool Prepared_statement::execute(String *expanded_query, bool open_cursor) the general log. */ if (error == 0 && thd->spcont == NULL) - general_log_write(thd, COM_STMT_EXECUTE, thd->query, thd->query_length); + general_log_write(thd, COM_STMT_EXECUTE, thd->query(), thd->query_length()); error: flags&= ~ (uint) IS_IN_USE; |