From 1ed1ede9ea60681b301fc7c808659a63ee6a0f46 Mon Sep 17 00:00:00 2001 From: marko <> Date: Tue, 13 Jun 2006 12:50:11 +0000 Subject: [PATCH] Merge changes from MySQL AB: innodb_mysql.test, innodb_mysql.result: Bug #16798: Uninitialized row buffer reads in ref-or-null optimizer Bug #12882: min/max inconsistent on empty table Test of behaviour with CREATE ... SELECT Moved from group_min_max.test: Bug #12672: primary key implicitly included in every innodb index Bug #6142: a problem with empty innodb table Bug #9798: group by with rollup ChangeSet@2006/06/01 21:47:15+03:00 bell@sanja.is.com.ua # interface for transaction log management added to handlerton # iterators creation interface added to handlerton ha_innodb.cc: Add get_log_status = create_iterator = NULL ChangeSet@2006/06/04 18:52:22+03:00 monty@mysql.com # This changeset is largely a handler cleanup changeset (WL#3281), # but includes fixes and cleanups that was found necessary while # testing the handler changes # sql/ha_innodb.h # 2006/06/04 18:52:09+03:00 monty@mysql.com +6 -13 # Update to 'newer' table handler interface # - table_flags are now ulonglong # - Added reset() method # - Removed not needed ha_retrieve_all_cols() and ha_retrieve_all_pk() # columns. # - Made build_template() a class function to be able to easier access # class variables # sql/ha_innodb.cc # 2006/06/04 18:52:09+03:00 monty@mysql.com +37 -44 # Update to 'newer' table handler interface # - Update innobase_create_handler() to new interface # - Removed HA_NOT_EXACT_COUNT (not needed) # - Renamed HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS # to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION. # - Prefixed base status variables with 'stats' # - Use table column bitmaps instead of ha_get_bit_in_read_set() # - Added ::reset(), with code from ::extra(HA_EXTRA_RESET) # - Removed HA_EXTRA_RETRIVE_ALL_COLS and HA_EXTRA_RETRIEVE_PRIMARY_KEY as # the table->read_set and table->write_set bitmaps now are accurate ChangeSet@2006/06/02 22:21:32+02:00 guilhem@mysql.com # First push for WL#3146 "less locking in auto_increment". It is a # 0-real-change patch. # New prototype for get_auto_increment() (but new arguments not yet used), # to be able to reserve a finite interval of auto_increment values from # cooperating engines. # A hint on how many values to reserve is found in # handler::estimation_rows_to_insert, # filled by ha_start_bulk_insert(), new wrapper around start_bulk_insert(). # NOTE: this patch changes nothing, for all engines. # But it makes the API ready for those # engines which will want to do reservation. # More csets will come to complete WL#3146. ha_innodb.h, ha_innodb.cc: update to new prototype of get_auto_increment ChangeSet@2006/05/28 14:51:01+02:00 serg@sergbook.mysql.com # handlerton cleanup: # duplicate fields removed, st_mysql_storage_engine added to support # run-time handlerton initialization (no compiler warnings), handler API # is now tied to MySQL version, handlerton->plugin mapping added # (slot-based), dummy default_hton removed, plugin-type-specific # initialization generalized, built-in plugins are now initialized too, # --default-storage-engine no longer needs a list of storage engines # in handle_options(). # # sql/ha_innodb.h # 2006/05/28 14:50:53+02:00 serg@sergbook.mysql.com +1 -1 # handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, # initialize handlerton run-time to avoid compiler warnings # # sql/ha_innodb.cc # 2006/05/28 14:50:53+02:00 serg@sergbook.mysql.com +37 -52 # handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine, # initialize handlerton run-time to avoid compiler warnings ChangeSet@2006/06/01 23:59:34+02:00 serg@serg.mylan # second patch for make distcheck ha_innodb.cc: enclose in #ifdef WITH_INNOBASE_STORAGE_ENGINE / #endif --- handler/ha_innodb.cc | 195 +++++++++---------- handler/ha_innodb.h | 26 ++- mysql-test/innodb_mysql.result | 329 ++++++++++++++++++++++++++++++++- mysql-test/innodb_mysql.test | 271 ++++++++++++++++++++++++++- 4 files changed, 701 insertions(+), 120 deletions(-) diff --git a/handler/ha_innodb.cc b/handler/ha_innodb.cc index 9ec17a26610..53b0695e861 100644 --- a/handler/ha_innodb.cc +++ b/handler/ha_innodb.cc @@ -43,6 +43,7 @@ have disables the InnoDB inlining in this file. */ #define MAX_ULONG_BIT ((ulong) 1 << (sizeof(ulong)*8-1)) #ifdef WITH_INNOBASE_STORAGE_ENGINE + #include "ha_innodb.h" pthread_mutex_t innobase_share_mutex, /* to protect innobase_open_files */ @@ -204,54 +205,16 @@ static int innobase_rollback(THD* thd, bool all); static int innobase_rollback_to_savepoint(THD* thd, void *savepoint); static int innobase_savepoint(THD* thd, void *savepoint); static int innobase_release_savepoint(THD* thd, void *savepoint); -static handler *innobase_create_handler(TABLE_SHARE *table); +static handler *innobase_create_handler(TABLE_SHARE *table, + MEM_ROOT *mem_root); static const char innobase_hton_name[]= "InnoDB"; -static const char innobase_hton_comment[]= - "Supports transactions, row-level locking, and foreign keys"; -handlerton innobase_hton = { - MYSQL_HANDLERTON_INTERFACE_VERSION, - innobase_hton_name, - SHOW_OPTION_YES, - innobase_hton_comment, - DB_TYPE_INNODB, - innobase_init, - 0, /* slot */ - sizeof(trx_named_savept_t), /* savepoint size. TODO: use it */ - innobase_close_connection, - innobase_savepoint, - innobase_rollback_to_savepoint, - innobase_release_savepoint, - innobase_commit, /* commit */ - innobase_rollback, /* rollback */ - innobase_xa_prepare, /* prepare */ - innobase_xa_recover, /* recover */ - innobase_commit_by_xid, /* commit_by_xid */ - innobase_rollback_by_xid, /* rollback_by_xid */ - innobase_create_cursor_view, - innobase_set_cursor_view, - innobase_close_cursor_view, - innobase_create_handler, /* Create a new handler */ - innobase_drop_database, /* Drop a database */ - innobase_end, /* Panic call */ - innobase_start_trx_and_assign_read_view, /* Start Consistent Snapshot */ - innobase_flush_logs, /* Flush logs */ - innobase_show_status, /* Show status */ - NULL, /* Partition flags */ - NULL, /* Alter table flags */ - NULL, /* alter_tablespace */ - NULL, /* Fill FILES table */ - HTON_NO_FLAGS, - NULL, /* binlog_func */ - NULL, /* binlog_log_query */ - innobase_release_temporary_latches -}; +handlerton innobase_hton; - -static handler *innobase_create_handler(TABLE_SHARE *table) +static handler *innobase_create_handler(TABLE_SHARE *table, MEM_ROOT *mem_root) { - return new ha_innobase(table); + return new (mem_root) ha_innobase(table); } @@ -933,10 +896,9 @@ ha_innobase::ha_innobase(TABLE_SHARE *table_arg) HA_NULL_IN_KEY | HA_CAN_INDEX_BLOBS | HA_CAN_SQL_HANDLER | - HA_NOT_EXACT_COUNT | - HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS | + HA_PRIMARY_KEY_REQUIRED_FOR_POSITION | HA_PRIMARY_KEY_IN_READ_INDEX | - HA_CAN_GEOMETRY | + HA_CAN_GEOMETRY | HA_PARTIAL_COLUMN_READ | HA_TABLE_SCAN_ON_INDEX), start_of_scan(0), num_write_row(0) @@ -1367,10 +1329,9 @@ ha_innobase::init_table_handle_for_HANDLER(void) /************************************************************************* Opens an InnoDB database. */ -bool +int innobase_init(void) /*===============*/ - /* out: &innobase_hton, or NULL on error */ { static char current_dir[3]; /* Set if using current lib */ int err; @@ -1379,8 +1340,33 @@ innobase_init(void) DBUG_ENTER("innobase_init"); + innobase_hton.state=have_innodb; + innobase_hton.db_type= DB_TYPE_INNODB; + innobase_hton.savepoint_offset=sizeof(trx_named_savept_t); + innobase_hton.close_connection=innobase_close_connection; + innobase_hton.savepoint_set=innobase_savepoint; + innobase_hton.savepoint_rollback=innobase_rollback_to_savepoint; + innobase_hton.savepoint_release=innobase_release_savepoint; + innobase_hton.commit=innobase_commit; + innobase_hton.rollback=innobase_rollback; + innobase_hton.prepare=innobase_xa_prepare; + innobase_hton.recover=innobase_xa_recover; + innobase_hton.commit_by_xid=innobase_commit_by_xid; + innobase_hton.rollback_by_xid=innobase_rollback_by_xid; + innobase_hton.create_cursor_read_view=innobase_create_cursor_view; + innobase_hton.set_cursor_read_view=innobase_set_cursor_view; + innobase_hton.close_cursor_read_view=innobase_close_cursor_view; + innobase_hton.create=innobase_create_handler; + innobase_hton.drop_database=innobase_drop_database; + innobase_hton.panic=innobase_end; + innobase_hton.start_consistent_snapshot=innobase_start_trx_and_assign_read_view; + innobase_hton.flush_logs=innobase_flush_logs; + innobase_hton.show_status=innobase_show_status; + innobase_hton.flags=HTON_NO_FLAGS; + innobase_hton.release_temporary_latches=innobase_release_temporary_latches; + if (have_innodb != SHOW_OPTION_YES) - goto error; + DBUG_RETURN(0); // nothing else to do ut_a(DATA_MYSQL_TRUE_VARCHAR == (ulint)MYSQL_TYPE_VARCHAR); @@ -2476,7 +2462,7 @@ ha_innobase::open( } } - block_size = 16 * 1024; /* Index block size in InnoDB: used by MySQL + stats.block_size = 16 * 1024; /* Index block size in InnoDB: used by MySQL in query optimization */ /* Init table lock structure */ @@ -3071,16 +3057,15 @@ ha_innobase::store_key_val_for_row( /****************************************************************** Builds a 'template' to the prebuilt struct. The template is used in fast retrieval of just those column values MySQL needs in its processing. */ -static void -build_template( +ha_innobase::build_template( /*===========*/ row_prebuilt_t* prebuilt, /* in: prebuilt struct */ THD* thd, /* in: current user thread, used only if templ_type is ROW_MYSQL_REC_FIELDS */ TABLE* table, /* in: MySQL table */ - ulint templ_type) /* in: ROW_MYSQL_WHOLE_ROW or + uint templ_type) /* in: ROW_MYSQL_WHOLE_ROW or ROW_MYSQL_REC_FIELDS */ { dict_index_t* index; @@ -3189,8 +3174,8 @@ build_template( goto include_field; } - if (table->file->ha_get_bit_in_read_set(i+1) || - table->file->ha_get_bit_in_write_set(i+1)) { + if (bitmap_is_set(table->read_set, i) || + bitmap_is_set(table->write_set, i)) { /* This field is needed in the query */ goto include_field; @@ -5566,7 +5551,7 @@ ha_innobase::info( nor the CHECK TABLE time, nor the UPDATE or INSERT time. */ if (os_file_get_status(path,&stat_info)) { - create_time = stat_info.ctime; + stats.create_time = stat_info.ctime; } } @@ -5594,21 +5579,21 @@ ha_innobase::info( n_rows++; } - records = (ha_rows)n_rows; - deleted = 0; - data_file_length = ((ulonglong) + stats.records = (ha_rows)n_rows; + stats.deleted = 0; + stats.data_file_length = ((ulonglong) ib_table->stat_clustered_index_size) * UNIV_PAGE_SIZE; - index_file_length = ((ulonglong) + stats.index_file_length = ((ulonglong) ib_table->stat_sum_of_other_index_sizes) * UNIV_PAGE_SIZE; - delete_length = 0; - check_time = 0; + stats.delete_length = 0; + stats.check_time = 0; - if (records == 0) { - mean_rec_length = 0; + if (stats.records == 0) { + stats.mean_rec_length = 0; } else { - mean_rec_length = (ulong) (data_file_length / records); + stats.mean_rec_length = (ulong) (stats.data_file_length / stats.records); } } @@ -5657,9 +5642,9 @@ ha_innobase::info( if (index->stat_n_diff_key_vals[j + 1] == 0) { - rec_per_key = records; + rec_per_key = stats.records; } else { - rec_per_key = (ha_rows)(records / + rec_per_key = (ha_rows)(stats.records / index->stat_n_diff_key_vals[j + 1]); } @@ -5714,7 +5699,7 @@ ha_innobase::info( } } - auto_increment_value = auto_inc; + stats.auto_increment_value = auto_inc; } prebuilt->trx->op_info = (char*)""; @@ -6109,8 +6094,7 @@ ha_innobase::extra( /*===============*/ /* out: 0 or error number */ enum ha_extra_function operation) - /* in: HA_EXTRA_RETRIEVE_ALL_COLS or some - other flag */ + /* in: HA_EXTRA_FLUSH or some other flag */ { row_prebuilt_t* prebuilt = (row_prebuilt_t*) innobase_prebuilt; @@ -6124,13 +6108,6 @@ ha_innobase::extra( row_mysql_prebuilt_free_blob_heap(prebuilt); } break; - case HA_EXTRA_RESET: - if (prebuilt->blob_heap) { - row_mysql_prebuilt_free_blob_heap(prebuilt); - } - prebuilt->keep_other_fields_on_keyread = 0; - prebuilt->read_just_key = 0; - break; case HA_EXTRA_RESET_STATE: prebuilt->keep_other_fields_on_keyread = 0; prebuilt->read_just_key = 0; @@ -6138,16 +6115,6 @@ ha_innobase::extra( case HA_EXTRA_NO_KEYREAD: prebuilt->read_just_key = 0; break; - case HA_EXTRA_RETRIEVE_ALL_COLS: - prebuilt->hint_need_to_fetch_extra_cols - = ROW_RETRIEVE_ALL_COLS; - break; - case HA_EXTRA_RETRIEVE_PRIMARY_KEY: - if (prebuilt->hint_need_to_fetch_extra_cols == 0) { - prebuilt->hint_need_to_fetch_extra_cols - = ROW_RETRIEVE_PRIMARY_KEY; - } - break; case HA_EXTRA_KEYREAD: prebuilt->read_just_key = 1; break; @@ -6161,6 +6128,18 @@ ha_innobase::extra( return(0); } +int ha_innobase::reset() +{ + row_prebuilt_t* prebuilt = (row_prebuilt_t*) innobase_prebuilt; + if (prebuilt->blob_heap) { + row_mysql_prebuilt_free_blob_heap(prebuilt); + } + prebuilt->keep_other_fields_on_keyread = 0; + prebuilt->read_just_key = 0; + return 0; +} + + /********************************************************************** MySQL calls this function at the start of each SQL statement inside LOCK TABLES. Inside LOCK TABLES the ::external_lock method does not work to @@ -6619,7 +6598,7 @@ innodb_show_status( bool result = FALSE; - if (stat_print(thd, innobase_hton.name, strlen(innobase_hton.name), + if (stat_print(thd, innobase_hton_name, strlen(innobase_hton_name), STRING_WITH_LEN(""), str, flen)) { result= TRUE; } @@ -6646,7 +6625,7 @@ innodb_mutex_show_status( ulint rw_lock_count_os_wait= 0; ulint rw_lock_count_os_yield= 0; ulonglong rw_lock_wait_time= 0; - uint hton_name_len= strlen(innobase_hton.name), buf1len, buf2len; + uint hton_name_len= strlen(innobase_hton_name), buf1len, buf2len; DBUG_ENTER("innodb_mutex_show_status"); #ifdef MUTEX_PROTECT_TO_BE_ADDED_LATER @@ -6673,7 +6652,7 @@ innodb_mutex_show_status( mutex->count_os_yield, mutex->lspent_time/1000); - if (stat_print(thd, innobase_hton.name, + if (stat_print(thd, innobase_hton_name, hton_name_len, buf1, buf1len, buf2, buf2len)) { #ifdef MUTEX_PROTECT_TO_BE_ADDED_LATER @@ -6703,7 +6682,7 @@ innodb_mutex_show_status( rw_lock_count_os_wait, rw_lock_count_os_yield, rw_lock_wait_time/1000); - if (stat_print(thd, innobase_hton.name, hton_name_len, + if (stat_print(thd, innobase_hton_name, hton_name_len, STRING_WITH_LEN("rw_lock_mutexes"), buf2, buf2len)) { DBUG_RETURN(1); } @@ -7120,17 +7099,21 @@ func_exit_early: return(error); } -/*********************************************************************** +/******************************************************************************* This function initializes the auto-inc counter if it has not been initialized yet. This function does not change the value of the auto-inc counter if it already has been initialized. Returns the value of the -auto-inc counter. */ +auto-inc counter in *first_value, and ULONGLONG_MAX in *nb_reserved_values (as +we have a table-level lock). offset, increment, nb_desired_values are ignored. +*first_value is set to -1 if error (deadlock or lock wait timeout) */ -ulonglong -ha_innobase::get_auto_increment() -/*=============================*/ - /* out: auto-increment column value, -1 if error - (deadlock or lock wait timeout) */ +void ha_innobase::get_auto_increment( +/*=================================*/ + ulonglong offset, /* in */ + ulonglong increment, /* in */ + ulonglong nb_desired_values, /* in */ + ulonglong *first_value, /* out */ + ulonglong *nb_reserved_values) /* out */ { longlong nr; int error; @@ -7145,10 +7128,13 @@ ha_innobase::get_auto_increment() ut_print_timestamp(stderr); sql_print_error("Error %lu in ::get_auto_increment()", (ulong) error); - return(~(ulonglong) 0); + *first_value= (~(ulonglong) 0); + return; } - return((ulonglong) nr); + *first_value= (ulonglong) nr; + /* table-level autoinc lock reserves up to +inf */ + *nb_reserved_values= ULONGLONG_MAX; } /* See comment in handler.h */ @@ -7616,15 +7602,17 @@ bool ha_innobase::check_if_incompatible_data( return COMPATIBLE_DATA_YES; } +struct st_mysql_storage_engine innobase_storage_engine= +{ MYSQL_HANDLERTON_INTERFACE_VERSION, &innobase_hton}; mysql_declare_plugin(innobase) { MYSQL_STORAGE_ENGINE_PLUGIN, - &innobase_hton, + &innobase_storage_engine, innobase_hton_name, "Innobase OY", - innobase_hton_comment, - NULL, /* Plugin Init */ + "Supports transactions, row-level locking, and foreign keys", + innobase_init, /* Plugin Init */ NULL, /* Plugin Deinit */ 0x0100 /* 1.0 */, 0 @@ -7632,3 +7620,4 @@ mysql_declare_plugin(innobase) mysql_declare_plugin_end; #endif + diff --git a/handler/ha_innodb.h b/handler/ha_innodb.h index 4f0c9eb151b..c7d698cbcf4 100644 --- a/handler/ha_innodb.h +++ b/handler/ha_innodb.h @@ -33,6 +33,8 @@ typedef struct st_innobase_share { } INNOBASE_SHARE; +struct row_prebuilt_struct; + my_bool innobase_query_caching_of_table_permitted(THD* thd, char* full_name, uint full_name_len, ulonglong *unused); @@ -89,7 +91,7 @@ class ha_innobase: public handler const char* table_type() const { return("InnoDB");} const char *index_type(uint key_number) { return "BTREE"; } const char** bas_ext() const; - ulong table_flags() const { return int_table_flags; } + ulonglong table_flags() const { return int_table_flags; } ulong index_flags(uint idx, uint part, bool all_parts) const { return (HA_READ_NEXT | @@ -109,7 +111,6 @@ class ha_innobase: public handler uint max_supported_key_length() const { return 3500; } uint max_supported_key_part_length() const; const key_map *keys_to_use_for_scanning() { return &key_map_full; } - bool has_transactions() { return 1;} int open(const char *name, int mode, uint test_if_locked); int close(void); @@ -147,20 +148,10 @@ class ha_innobase: public handler int optimize(THD* thd,HA_CHECK_OPT* check_opt); int discard_or_import_tablespace(my_bool discard); int extra(enum ha_extra_function operation); + int reset(); int external_lock(THD *thd, int lock_type); int transactional_table_lock(THD *thd, int lock_type); int start_stmt(THD *thd, thr_lock_type lock_type); - - int ha_retrieve_all_cols() - { - ha_set_all_bits_in_read_set(); - return extra(HA_EXTRA_RETRIEVE_ALL_COLS); - } - int ha_retrieve_all_pk() - { - ha_set_primary_key_in_read_set(); - return extra(HA_EXTRA_RETRIEVE_PRIMARY_KEY); - } void position(byte *record); ha_rows records_in_range(uint inx, key_range *min_key, key_range *max_key); @@ -181,7 +172,10 @@ class ha_innobase: public handler THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to, enum thr_lock_type lock_type); void init_table_handle_for_HANDLER(); - ulonglong get_auto_increment(); + virtual void get_auto_increment(ulonglong offset, ulonglong increment, + ulonglong nb_desired_values, + ulonglong *first_value, + ulonglong *nb_reserved_values); int reset_auto_increment(ulonglong value); virtual bool get_error_message(int error, String *buf); @@ -207,6 +201,8 @@ class ha_innobase: public handler int cmp_ref(const byte *ref1, const byte *ref2); bool check_if_incompatible_data(HA_CREATE_INFO *info, uint table_changes); + void build_template(struct row_prebuilt_struct *prebuilt, THD *thd, + TABLE *table, uint templ_type); }; extern SHOW_VAR innodb_status_variables[]; @@ -249,7 +245,7 @@ extern ulong srv_thread_concurrency; extern ulong srv_commit_concurrency; } -bool innobase_init(void); +int innobase_init(void); int innobase_end(ha_panic_function type); bool innobase_flush_logs(void); uint innobase_get_free_space(void); diff --git a/mysql-test/innodb_mysql.result b/mysql-test/innodb_mysql.result index 878c5cb5451..918f1c2c7c5 100644 --- a/mysql-test/innodb_mysql.result +++ b/mysql-test/innodb_mysql.result @@ -1 +1,328 @@ -drop table if exists t1; +drop table if exists t1,t2,t1m,t1i,t2m,t2i,t4; +create table t1 ( +c_id int(11) not null default '0', +org_id int(11) default null, +unique key contacts$c_id (c_id), +key contacts$org_id (org_id) +) engine=innodb; +insert into t1 values +(2,null),(120,null),(141,null),(218,7), (128,1), +(151,2),(234,2),(236,2),(243,2),(255,2),(259,2),(232,3),(235,3),(238,3), +(246,3),(253,3),(269,3),(285,3),(291,3),(293,3),(131,4),(230,4),(231,4); +create table t2 ( +slai_id int(11) not null default '0', +owner_tbl int(11) default null, +owner_id int(11) default null, +sla_id int(11) default null, +inc_web int(11) default null, +inc_email int(11) default null, +inc_chat int(11) default null, +inc_csr int(11) default null, +inc_total int(11) default null, +time_billed int(11) default null, +activedate timestamp null default null, +expiredate timestamp null default null, +state int(11) default null, +sla_set int(11) default null, +unique key t2$slai_id (slai_id), +key t2$owner_id (owner_id), +key t2$sla_id (sla_id) +) engine=innodb; +insert into t2(slai_id, owner_tbl, owner_id, sla_id) values +(1,3,1,1), (3,3,10,2), (4,3,3,6), (5,3,2,5), (6,3,8,3), (7,3,9,7), +(8,3,6,8), (9,3,4,9), (10,3,5,10), (11,3,11,11), (12,3,7,12); +flush tables; +select si.slai_id +from t1 c join t2 si on +((si.owner_tbl = 3 and si.owner_id = c.org_id) or +( si.owner_tbl = 2 and si.owner_id = c.c_id)) +where +c.c_id = 218 and expiredate is null; +slai_id +12 +select * from t1 where org_id is null; +c_id org_id +2 NULL +120 NULL +141 NULL +select si.slai_id +from t1 c join t2 si on +((si.owner_tbl = 3 and si.owner_id = c.org_id) or +( si.owner_tbl = 2 and si.owner_id = c.c_id)) +where +c.c_id = 218 and expiredate is null; +slai_id +12 +drop table t1, t2; +create table t1m (a int) engine=myisam; +create table t1i (a int) engine=innodb; +create table t2m (a int) engine=myisam; +create table t2i (a int) engine=innodb; +insert into t2m values (5); +insert into t2i values (5); +select min(a) from t1m; +min(a) +NULL +select min(7) from t1m; +min(7) +NULL +select min(7) from DUAL; +min(7) +NULL +explain select min(7) from t2m join t1m; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Select tables optimized away +select min(7) from t2m join t1m; +min(7) +NULL +select max(a) from t1m; +max(a) +NULL +select max(7) from t1m; +max(7) +NULL +select max(7) from DUAL; +max(7) +NULL +explain select max(7) from t2m join t1m; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Select tables optimized away +select max(7) from t2m join t1m; +max(7) +NULL +select 1, min(a) from t1m where a=99; +1 min(a) +1 NULL +select 1, min(a) from t1m where 1=99; +1 min(a) +1 NULL +select 1, min(1) from t1m where a=99; +1 min(1) +1 NULL +select 1, min(1) from t1m where 1=99; +1 min(1) +1 NULL +select 1, max(a) from t1m where a=99; +1 max(a) +1 NULL +select 1, max(a) from t1m where 1=99; +1 max(a) +1 NULL +select 1, max(1) from t1m where a=99; +1 max(1) +1 NULL +select 1, max(1) from t1m where 1=99; +1 max(1) +1 NULL +select min(a) from t1i; +min(a) +NULL +select min(7) from t1i; +min(7) +NULL +select min(7) from DUAL; +min(7) +NULL +explain select min(7) from t2i join t1i; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t2i ALL NULL NULL NULL NULL 1 +1 SIMPLE t1i ALL NULL NULL NULL NULL 1 +select min(7) from t2i join t1i; +min(7) +NULL +select max(a) from t1i; +max(a) +NULL +select max(7) from t1i; +max(7) +NULL +select max(7) from DUAL; +max(7) +NULL +explain select max(7) from t2i join t1i; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t2i ALL NULL NULL NULL NULL 1 +1 SIMPLE t1i ALL NULL NULL NULL NULL 1 +select max(7) from t2i join t1i; +max(7) +NULL +select 1, min(a) from t1i where a=99; +1 min(a) +1 NULL +select 1, min(a) from t1i where 1=99; +1 min(a) +1 NULL +select 1, min(1) from t1i where a=99; +1 min(1) +1 NULL +select 1, min(1) from t1i where 1=99; +1 min(1) +1 NULL +select 1, max(a) from t1i where a=99; +1 max(a) +1 NULL +select 1, max(a) from t1i where 1=99; +1 max(a) +1 NULL +select 1, max(1) from t1i where a=99; +1 max(1) +1 NULL +select 1, max(1) from t1i where 1=99; +1 max(1) +1 NULL +explain select count(*), min(7), max(7) from t1m, t1i; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1m system NULL NULL NULL NULL 0 const row not found +1 SIMPLE t1i ALL NULL NULL NULL NULL 1 +select count(*), min(7), max(7) from t1m, t1i; +count(*) min(7) max(7) +0 NULL NULL +explain select count(*), min(7), max(7) from t1m, t2i; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1m system NULL NULL NULL NULL 0 const row not found +1 SIMPLE t2i ALL NULL NULL NULL NULL 1 +select count(*), min(7), max(7) from t1m, t2i; +count(*) min(7) max(7) +0 NULL NULL +explain select count(*), min(7), max(7) from t2m, t1i; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t2m system NULL NULL NULL NULL 1 +1 SIMPLE t1i ALL NULL NULL NULL NULL 1 +select count(*), min(7), max(7) from t2m, t1i; +count(*) min(7) max(7) +0 NULL NULL +drop table t1m, t1i, t2m, t2i; +create table t1 ( +a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(64) default ' ' +); +insert into t1 (a1, a2, b, c, d) values +('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'), +('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'), +('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'), +('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'), +('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'), +('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'), +('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'), +('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'), +('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'), +('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'), +('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'), +('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'), +('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'), +('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'), +('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'), +('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'), +('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'), +('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'), +('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'), +('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'), +('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'), +('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'), +('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'), +('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'), +('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'), +('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'), +('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'), +('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'), +('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'), +('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'), +('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'), +('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'); +create table t4 ( +pk_col int auto_increment primary key, a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(64) default ' ' +) engine=innodb; +insert into t4 (a1, a2, b, c, d, dummy) select * from t1; +create index idx12672_0 on t4 (a1); +create index idx12672_1 on t4 (a1,a2,b,c); +create index idx12672_2 on t4 (a1,a2,b); +analyze table t1; +Table Op Msg_type Msg_text +test.t1 analyze status OK +select distinct a1 from t4 where pk_col not in (1,2,3,4); +a1 +a +b +c +d +drop table t1,t4; +create table t1 ( +a varchar(30), b varchar(30), primary key(a), key(b) +) engine=innodb; +select distinct a from t1; +a +drop table t1; +create table t1(a int, key(a)) engine=innodb; +insert into t1 values(1); +select a, count(a) from t1 group by a with rollup; +a count(a) +1 1 +NULL 1 +drop table t1; +create table t1 (f1 int, f2 char(1), primary key(f1,f2)) engine=innodb; +insert into t1 values ( 1,"e"),(2,"a"),( 3,"c"),(4,"d"); +alter table t1 drop primary key, add primary key (f2, f1); +explain select distinct f1 a, f1 b from t1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 index NULL PRIMARY 5 NULL 4 Using index; Using temporary +explain select distinct f1, f2 from t1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 range NULL PRIMARY 5 NULL 3 Using index for group-by; Using temporary +drop table t1; +set storage_engine=innodb; +CREATE TABLE t1 (a int, b int); +insert into t1 values (1,1),(1,2); +CREATE TABLE t2 (primary key (a)) select * from t1; +ERROR 23000: Duplicate entry '1' for key 'PRIMARY' +drop table if exists t2; +Warnings: +Note 1051 Unknown table 't2' +CREATE TEMPORARY TABLE t2 (primary key (a)) select * from t1; +ERROR 23000: Duplicate entry '1' for key 'PRIMARY' +drop table if exists t2; +Warnings: +Note 1051 Unknown table 't2' +CREATE TABLE t2 (a int, b int, primary key (a)); +BEGIN; +INSERT INTO t2 values(100,100); +CREATE TABLE IF NOT EXISTS t2 (primary key (a)) select * from t1; +ERROR 23000: Duplicate entry '1' for key 'PRIMARY' +SELECT * from t2; +a b +100 100 +ROLLBACK; +SELECT * from t2; +a b +100 100 +TRUNCATE table t2; +INSERT INTO t2 select * from t1; +ERROR 23000: Duplicate entry '1' for key 'PRIMARY' +SELECT * from t2; +a b +drop table t2; +CREATE TEMPORARY TABLE t2 (a int, b int, primary key (a)); +BEGIN; +INSERT INTO t2 values(100,100); +CREATE TEMPORARY TABLE IF NOT EXISTS t2 (primary key (a)) select * from t1; +ERROR 23000: Duplicate entry '1' for key 'PRIMARY' +SELECT * from t2; +a b +100 100 +COMMIT; +BEGIN; +INSERT INTO t2 values(101,101); +CREATE TEMPORARY TABLE IF NOT EXISTS t2 (primary key (a)) select * from t1; +ERROR 23000: Duplicate entry '1' for key 'PRIMARY' +SELECT * from t2; +a b +100 100 +101 101 +ROLLBACK; +SELECT * from t2; +a b +100 100 +TRUNCATE table t2; +INSERT INTO t2 select * from t1; +ERROR 23000: Duplicate entry '1' for key 'PRIMARY' +SELECT * from t2; +a b +drop table t1,t2; diff --git a/mysql-test/innodb_mysql.test b/mysql-test/innodb_mysql.test index b942b9fbc0d..0a9eeb049b0 100644 --- a/mysql-test/innodb_mysql.test +++ b/mysql-test/innodb_mysql.test @@ -1,5 +1,274 @@ -- source include/have_innodb.inc --disable_warnings -drop table if exists t1; +drop table if exists t1,t2,t1m,t1i,t2m,t2i,t4; --enable_warnings + +# BUG#16798: Uninitialized row buffer reads in ref-or-null optimizer +# (repeatable only w/innodb). +create table t1 ( + c_id int(11) not null default '0', + org_id int(11) default null, + unique key contacts$c_id (c_id), + key contacts$org_id (org_id) +) engine=innodb; +insert into t1 values + (2,null),(120,null),(141,null),(218,7), (128,1), + (151,2),(234,2),(236,2),(243,2),(255,2),(259,2),(232,3),(235,3),(238,3), + (246,3),(253,3),(269,3),(285,3),(291,3),(293,3),(131,4),(230,4),(231,4); + +create table t2 ( + slai_id int(11) not null default '0', + owner_tbl int(11) default null, + owner_id int(11) default null, + sla_id int(11) default null, + inc_web int(11) default null, + inc_email int(11) default null, + inc_chat int(11) default null, + inc_csr int(11) default null, + inc_total int(11) default null, + time_billed int(11) default null, + activedate timestamp null default null, + expiredate timestamp null default null, + state int(11) default null, + sla_set int(11) default null, + unique key t2$slai_id (slai_id), + key t2$owner_id (owner_id), + key t2$sla_id (sla_id) +) engine=innodb; +insert into t2(slai_id, owner_tbl, owner_id, sla_id) values + (1,3,1,1), (3,3,10,2), (4,3,3,6), (5,3,2,5), (6,3,8,3), (7,3,9,7), + (8,3,6,8), (9,3,4,9), (10,3,5,10), (11,3,11,11), (12,3,7,12); + +flush tables; +select si.slai_id +from t1 c join t2 si on + ((si.owner_tbl = 3 and si.owner_id = c.org_id) or + ( si.owner_tbl = 2 and si.owner_id = c.c_id)) +where + c.c_id = 218 and expiredate is null; + +select * from t1 where org_id is null; +select si.slai_id +from t1 c join t2 si on + ((si.owner_tbl = 3 and si.owner_id = c.org_id) or + ( si.owner_tbl = 2 and si.owner_id = c.c_id)) +where + c.c_id = 218 and expiredate is null; + +drop table t1, t2; + +# +# Bug #12882 min/max inconsistent on empty table +# + +--disable_warnings +create table t1m (a int) engine=myisam; +create table t1i (a int) engine=innodb; +create table t2m (a int) engine=myisam; +create table t2i (a int) engine=innodb; +--enable_warnings +insert into t2m values (5); +insert into t2i values (5); + +# test with MyISAM +select min(a) from t1m; +select min(7) from t1m; +select min(7) from DUAL; +explain select min(7) from t2m join t1m; +select min(7) from t2m join t1m; + +select max(a) from t1m; +select max(7) from t1m; +select max(7) from DUAL; +explain select max(7) from t2m join t1m; +select max(7) from t2m join t1m; + +select 1, min(a) from t1m where a=99; +select 1, min(a) from t1m where 1=99; +select 1, min(1) from t1m where a=99; +select 1, min(1) from t1m where 1=99; + +select 1, max(a) from t1m where a=99; +select 1, max(a) from t1m where 1=99; +select 1, max(1) from t1m where a=99; +select 1, max(1) from t1m where 1=99; + +# test with InnoDB +select min(a) from t1i; +select min(7) from t1i; +select min(7) from DUAL; +explain select min(7) from t2i join t1i; +select min(7) from t2i join t1i; + +select max(a) from t1i; +select max(7) from t1i; +select max(7) from DUAL; +explain select max(7) from t2i join t1i; +select max(7) from t2i join t1i; + +select 1, min(a) from t1i where a=99; +select 1, min(a) from t1i where 1=99; +select 1, min(1) from t1i where a=99; +select 1, min(1) from t1i where 1=99; + +select 1, max(a) from t1i where a=99; +select 1, max(a) from t1i where 1=99; +select 1, max(1) from t1i where a=99; +select 1, max(1) from t1i where 1=99; + +# mixed MyISAM/InnoDB test +explain select count(*), min(7), max(7) from t1m, t1i; +select count(*), min(7), max(7) from t1m, t1i; + +explain select count(*), min(7), max(7) from t1m, t2i; +select count(*), min(7), max(7) from t1m, t2i; + +explain select count(*), min(7), max(7) from t2m, t1i; +select count(*), min(7), max(7) from t2m, t1i; + +drop table t1m, t1i, t2m, t2i; + +# +# Bug #12672: primary key implcitly included in every innodb index +# (was part of group_min_max.test) +# + +create table t1 ( + a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(64) default ' ' +); + +insert into t1 (a1, a2, b, c, d) values +('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'), +('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'), +('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'), +('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'), +('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'), +('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'), +('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'), +('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'), +('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'), +('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'), +('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'), +('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'), +('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'), +('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'), +('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'), +('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'), +('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'), +('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'), +('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'), +('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'), +('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'), +('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'), +('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'), +('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'), +('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'), +('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'), +('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'), +('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'), +('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'), +('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'), +('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'), +('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'); +--disable_warnings +create table t4 ( + pk_col int auto_increment primary key, a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(64) default ' ' +) engine=innodb; +--enable_warnings +insert into t4 (a1, a2, b, c, d, dummy) select * from t1; + +create index idx12672_0 on t4 (a1); +create index idx12672_1 on t4 (a1,a2,b,c); +create index idx12672_2 on t4 (a1,a2,b); +analyze table t1; + +select distinct a1 from t4 where pk_col not in (1,2,3,4); + +drop table t1,t4; + +# +# Bug #6142: a problem with the empty innodb table +# (was part of group_min_max.test) +# + +--disable_warnings +create table t1 ( + a varchar(30), b varchar(30), primary key(a), key(b) +) engine=innodb; +--enable_warnings +select distinct a from t1; +drop table t1; + +# +# Bug #9798: group by with rollup +# (was part of group_min_max.test) +# + +--disable_warnings +create table t1(a int, key(a)) engine=innodb; +--enable_warnings +insert into t1 values(1); +select a, count(a) from t1 group by a with rollup; +drop table t1; + +# +# Bug #13293 Wrongly used index results in endless loop. +# (was part of group_min_max.test) +# +create table t1 (f1 int, f2 char(1), primary key(f1,f2)) engine=innodb; +insert into t1 values ( 1,"e"),(2,"a"),( 3,"c"),(4,"d"); +alter table t1 drop primary key, add primary key (f2, f1); +explain select distinct f1 a, f1 b from t1; +explain select distinct f1, f2 from t1; +drop table t1; + + +# +# Test of behaviour with CREATE ... SELECT +# + +set storage_engine=innodb; +CREATE TABLE t1 (a int, b int); +insert into t1 values (1,1),(1,2); +--error 1062 +CREATE TABLE t2 (primary key (a)) select * from t1; +# This should give warning +drop table if exists t2; +--error 1062 +CREATE TEMPORARY TABLE t2 (primary key (a)) select * from t1; +# This should give warning +drop table if exists t2; +CREATE TABLE t2 (a int, b int, primary key (a)); +BEGIN; +INSERT INTO t2 values(100,100); +--error 1062 +CREATE TABLE IF NOT EXISTS t2 (primary key (a)) select * from t1; +SELECT * from t2; +ROLLBACK; +SELECT * from t2; +TRUNCATE table t2; +--error 1062 +INSERT INTO t2 select * from t1; +SELECT * from t2; +drop table t2; + +CREATE TEMPORARY TABLE t2 (a int, b int, primary key (a)); +BEGIN; +INSERT INTO t2 values(100,100); +--error 1062 +CREATE TEMPORARY TABLE IF NOT EXISTS t2 (primary key (a)) select * from t1; +SELECT * from t2; +COMMIT; +BEGIN; +INSERT INTO t2 values(101,101); +--error 1062 +CREATE TEMPORARY TABLE IF NOT EXISTS t2 (primary key (a)) select * from t1; +SELECT * from t2; +ROLLBACK; +SELECT * from t2; +TRUNCATE table t2; +--error 1062 +INSERT INTO t2 select * from t1; +SELECT * from t2; +drop table t1,t2;