- Remove ha_archive::rename_table and move the fix to handler::rename_table
sql/examples/ha_archive.cc:
Remove ha_archive::rename_table
sql/examples/ha_archive.h:
Remove ha_archive::rename_table
sql/handler.cc:
Fix handler::rename_table so it does not care about if the file to rename is missing
Fixed problem with NULL in VARCHAR/BLOB keys for multi-part keys where VARCHAR/BLOB is first part
client/mysqladmin.cc:
Show GLOBAL status
myisam/mi_key.c:
Fixed problem with NULL in VARCHAR/BLOB keys for multi-part keys where VARCHAR/BLOB is first part
(Ramil will soon push test cases)
sql/handler.cc:
Indentation fix
tests/mysql_client_test.c:
Portability fixes
BUG#9738 "SHOW VARIABLES still displays the deprecated 'log_update' in 5.0",
BUG#9542 "MySQL dies with signal 11 when it is using non-existent location of binary logs"
mysql-test/r/create.result:
MEMORY, not HEAP
mysql-test/r/ps_1general.result:
order changed in SHOW STORAGE ENGINES
mysql-test/r/variables.result:
MEMORY, not HEAP
sql/handler.cc:
the array of storage engine names is searched in index order, so we must put the preferred name
before the alias so that the preferred name is printed by MySQL instead of the alias.
sql/log.cc:
TC_LOG::open(): don't try to open if the index (relevant only for binlog TC log)
could not be opened.
sql/set_var.cc:
--log-update is deprecated and replaced by --log-bin so don't show log_update in SHOW VARIABLES.
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/ha_innodb.cc:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/handler.cc:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/mysqld.cc:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/set_var.cc:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/sql_repl.cc:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/ha_innodb.h:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/handler.h:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
scripts/mysql_create_system_tables.sh:
Auto merged
scripts/mysql_fix_privilege_tables.sql:
Auto merged
sql/set_var.cc:
Auto merged
support-files/mysql.server.sh:
Auto merged
sql/ha_ndbcluster.cc:
Merge
sql/handler.cc:
Merge
sql/handler.h:
Merge
sql/mysqld.cc:
Merge
Don't abort on bootstrap if a wrong --default-storage-engine is specified
sql/handler.cc:
Combined code
sql/mysqld.cc:
Fixed core dump with long timezone names
Don't abort on bootstrap if a wrong --default-storage-engine is specified
Don't print strange messages if one sends 'kill' to a mysqld --bootstrap
sql/set_var.cc:
Indentaion change
refuse to start up if it is not. (Bug #9815)
sql/handler.cc:
Add ha_storage_engine_is_enabled function.
sql/handler.h:
Declare ha_storage_engine_is_enabled()
sql/mysqld.cc:
Abort startup if the specified default storage engine is
not available.
mysql-test/r/flush_block_commit.result:
FLUSH TABLES WITH READ LOCK should block writes to binlog too
it does not yet
mysql-test/t/flush_block_commit.test:
FLUSH TABLES WITH READ LOCK should block writes to binlog too
it does not yet
- Removed hardcoded error message from 4.1
include/my_base.h:
Adding error message for the case when table definition has changed in storage engine
mysql-test/t/ndb_alter_table.test:
Updated testresult to expect new error code
sql/ha_ndbcluster.cc:
Add mapping for ndb error 284 to HA_ERR_TABLE_DEF_CHANGED, this error will occur when the table definition has been changed by another MySQL Server connected to the cluster.
Remove hardcoded errormessage from 4.1
sql/handler.cc:
Adding error message for the case when table definition has changed in storage engine
sql/share/errmsg.txt:
Adding error message for the case when table definition has changed in storage engine
Fix Bug #8650 : InnoDB does not rollback SQL statement at an error
sql/ha_innodb.cc:
Fix Bug #8650 : InnoDB does not rollback SQL statement at an error
sql/handler.cc:
Fix Bug #8650 : InnoDB does not rollback SQL statement at an error
sql/field.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/handler.cc:
SCCS merged
fix a race condition in TC_LOG_BINLOG::unlog
include/Makefile.am:
remove the rest of isam/merge references
include/config-win.h:
unused and abused macro removed
include/my_pthread.h:
unused and abused macro removed
include/my_sys.h:
MY_IGNORE_BADFD flag
include/mysql_embed.h:
remove the rest of isam/merge references
mysql-test/r/replace.result:
remove the rest of isam/merge references
mysql-test/t/replace.test:
remove the rest of isam/merge references
mysql-test/t/xa.test:
comment
mysys/my_sync.c:
MY_IGNORE_BADFD flag
sql/handler.cc:
remove the rest of isam/merge references
sql/log.cc:
fix a race condition in TC_LOG_BINLOG::unlog
preparation for binlog group commit
sql/mysql_priv.h:
remove duplicates
sql/mysqld.cc:
remove the rest of isam/merge references
sql/opt_range.cc:
remove the rest of isam/merge references
sql/set_var.cc:
hide unused variables. simplify sync_binlog code
sql/sql_base.cc:
remove the rest of isam/merge references
sql/sql_class.h:
cleanup
Small fixes while doing review of new pushed code
More test cases for decimal
mysql-test/r/date_formats.result:
Warnings added for STR_TO_DATE()
mysql-test/r/ps_1general.result:
Better description for BLACKHOLE
mysql-test/r/strict.result:
Added tests for STR_TO_DATE
mysql-test/r/type_decimal.result:
Test to test ranges of DECIMAL
mysql-test/t/date_formats.test:
More tests
mysql-test/t/strict.test:
Added tests for STR_TO_DATE
mysql-test/t/type_decimal.test:
Test to test ranges of DECIMAL
sql/field.cc:
Simple optimization
sql/handler.cc:
Better description for BLACKHOLE
sql/item_timefunc.cc:
Give warnings if wrong date/time/datetime argument for STR_TO_DATE
sql/log_event.cc:
Indentation fixes
sql/log_event.h:
#ifdef-ed not used code
sql/share/errmsg.txt:
New error message
sql/sql_show.cc:
Ensure that we do a proper restore in case of error
#6559 "DROP DATABASE forgets to drop triggers".
If we drop table we should also drop all triggers associated with it.
To do this we have to check for existence of .TRG file when we are
dropping table and delete it too.
mysql-test/r/trigger.result:
Added tests for bugs #5859 "DROP TABLE does not drop triggers"
and #6559 "DROP DATABASE forgets to drop triggers".
mysql-test/t/trigger.test:
Added tests for bugs #5859 "DROP TABLE does not drop triggers"
and #6559 "DROP DATABASE forgets to drop triggers".
sql/handler.cc:
Added .TRG to the list of known extensions of files associated with
tables.
sql/mysql_priv.h:
Added declaration of constant holding extension for trigger files.
sql/sql_table.cc:
mysql_rm_table_part2():
If we drop table we should also drop all triggers associated with it.
To do this we have to check for existence of .TRG file and delete it
(until the moment when we will store trigger definitions in the same
.FRM file as table description).
sql/sql_trigger.cc:
Made constant holding extension for trigger files externally visible.
configure.in:
Auto merged
BitKeeper/deleted/.del-acinclude.m4~f4ab416bac5003:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/Makefile.am:
Edited for adding blackhole.
sql/handler.cc:
Edited for adding blackhole.
sql/handler.h:
Edited for blackhole.
BitKeeper/etc/logging_ok:
auto-union
mysql-test/r/information_schema.result:
Auto merged
mysql-test/r/ndb_autodiscover.result:
Auto merged
mysql-test/r/ps_1general.result:
Auto merged
mysql-test/r/show_check.result:
Auto merged
mysql-test/r/sp.result:
Auto merged
mysql-test/r/view.result:
Auto merged
scripts/fill_func_tables.sh:
Auto merged
scripts/mysql_create_system_tables.sh:
Auto merged
scripts/mysql_fix_privilege_tables.sh:
Auto merged
scripts/mysql_fix_privilege_tables.sql:
Auto merged
sql/field.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/item_sum.cc:
Auto merged
sql/item_sum.h:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/table.cc:
Auto merged
acinclude.m4:
New macro rule for ha_blackhole.
configure.in:
Rule enabling blackhole engine
sql/Makefile.am:
Additions to Makefile for blackhole engine
sql/handler.cc:
Ifdef enable code for blackhole (and message for "what does this thing do").
sql/handler.h:
Flag for storage engine type.
sql/mysql_priv.h:
Added blackhole type.
sql/mysqld.cc:
Updates for building backhole.
sql/set_var.cc:
Show variable for blackhole engine
into serg.mylan:/usr/home/serg/Abk/mysql-5.0
innobase/include/trx0trx.h:
Auto merged
sql/ha_innodb.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/item.cc:
Auto merged
sql/log_event.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/item_func.cc:
Remove unused variable
sql/handler.cc:
Fix warnings
sql/item_sum.cc:
Restore C_MODE_START/END around count_distinct_walk
Change second argument to dump_leaf_key to correct type
sql/item_sum.h:
Change second argument to dump_leaf_key to correct type
Fixed newly introduced bug in rollup
client/mysqldump.c:
Safer buffer allocation
Removed wrong assert
mysql-test/r/olap.result:
more tests
mysql-test/t/olap.test:
more tests
sql/handler.cc:
Simple cleanup
Fixed wrong check for next digit (wrong debug output)
sql/item.cc:
Replace shrink_to_length() with mark_as_const() as the former allowed one to do changes to the string
sql/item_sum.cc:
Change reference to pointer
Trivial optimzation of testing 'allways_null'
sql/mysqld.cc:
Proper indentation of comment
sql/sql_select.cc:
Fixed newly introduced bug in rollup
sql/sql_string.h:
Remove not needed 'shrink_to_length()'
Added 'mark_as_const()' to be used when one want to ensure that a string is not changed
into serg.mylan:/usr/home/serg/Abk/mysql-5.0
libmysql/libmysql.c:
Auto merged
sql/field.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
Windows to call CreateFileMapping() with correct arguments, and
propogating the introduction of query_id_t to everywhere query ids are
passed around. (Bug #8826)
libmysql/libmysql.c:
Make implicit cast explicit
myisam/mi_open.c:
Make cast of value to smaller data size explicit
myisam/mi_packrec.c:
Cast file size (my_off_t) to size_t for mmap
mysys/my_mmap.c:
Fix Windows version of my_mmap() to use the right parameters
for call to CreateFileMapping()
sql/field.cc:
Use temporary value of correct type
sql/field.h:
Use query_id_t for query_id value
sql/ha_berkeley.cc:
Fix flag check
sql/ha_innodb.h:
Use query_id_t for query_id value
sql/handler.cc:
Explain opt_using_transactions calculation, and add cast
sql/handler.h:
Fix forward declaration of COND
sql/item.cc:
Fix val_bool() tests of val_int() to avoid implicit cast
sql/item_cmpfunc.cc:
Fix typo in switch label
sql/item_func.cc:
Make implicit cast explicit
sql/item_strfunc.cc:
Now that query_id is a query_id_t, need to cast it to a ulong here
sql/item_subselect.cc:
Fix test of value
sql/log.cc:
Cast my_off_t used for file size to size_t for memory allocation
Also cast my_off_t when using it to calculate the number of pages for TC log
Cast total_ha_2pc to uchar when saving it
sql/mysql_priv.h:
Move up query_id definition so it can be used more widely
sql/opt_range.cc:
Add unused delete operator to prevent compiler warning
sql/set_var.cc:
Cast value for max_user_connections
sql/sql_cache.cc:
Remove unused label
sql/sql_class.h:
Fix query id values to be of type query_id_t
sql/sql_db.cc:
Move variable only used inside #ifdef within the #ifdef
sql/sql_help.cc:
Remove unused label
sql/sql_insert.cc:
Use query_id_t for query id values
sql/sql_lex.h:
Add unused delete operator to prevent compiler warning
sql/sql_select.cc:
Remove unused variable
Make cast of value explicit
sql/sql_select.h:
Use query_id_t for query id values
sql/sql_table.cc:
Make comparison to function pointer explicit
sql/sql_update.cc:
Use query_id_t for query id values
sql/table.h:
Use query_id_t for query id values
strings/ctype-simple.c:
Add cast of long value to (char) in expression
strings/ctype-ucs2.c:
Add cast of long value to (char) in expression
strings/ctype-utf8.c:
Make cast to smaller size explicit
into serg.mylan:/usr/home/serg/Abk/mysql-5.0
sql/handler.cc:
Auto merged
sql/lock.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_table.cc:
Auto merged
protect prepare-...-commit with a mutex to ensure that commits in binlog and in the innodb have the same order
store binlog position with the commit
innobase/include/trx0trx.h:
comment modified
sql/ha_innodb.cc:
protect prepare-...-commit with a mutex to ensure that commits in binlog and in the innodb have the same order
store binlog position with the commit
sql/handler.cc:
ha_prepare cannot return -1
smarter xid-to-str routiine
fixed assert crash in XA RECOVER
sql/sql_parse.cc
XA COMMIT/ROLLBACK did not send_ok in some cases
sql/handler.cc:
smarter xid-to-str routiine
fixed assert crash in XA RECOVER
sql/sql_parse.cc:
XA COMMIT/ROLLBACK did not send_ok in some cases
warning on startup if prepared foreign xids
error on startup if prepared our xids
temporarily: always rollback prepared our xids instead of an error
sql/mysql_priv.h:
opt_tc_log_file made extern
sql/mysqld.cc:
opt_tc_log_file made extern
always call ha_recover() even if no previous crash was detected
sql/handler.cc:
s/MY_WME/0/ - don't issue an error when a file does not exists on
deletion, a table does not need to have all bas_ext[] files;
two-line function removed and expanded inline.
deadlock in MYSQL_LOG::new_file()
style fixes
mysql-test/r/innodb.result:
one more test for truncate
mysql-test/t/innodb.test:
one more test for truncate
sql/ha_innodb.cc:
bug#8151 - truncate leaves a transaction open
sql/handler.cc:
bug#8151 - truncate leaves a transaction open
sql/item.h:
style fix
sql/item_cmpfunc.cc:
style fix
sql/item_cmpfunc.h:
style fix
sql/item_func.cc:
style fix
sql/item_func.h:
style fix
sql/log.cc:
let new_file() to lock LOCK_index,
don't check for prepared_xids in rotate_and_purge()
increase thread_safe_increment when LOCK_log is taken
sql/log_event.cc:
mysqlbinlog now prints a warning if binlog was not closed properly
sql/sql_class.h:
comments
sql/sql_repl.cc:
DBUG_ENTER tag corrected
(Found during build process)
extra/comp_err.c:
Remove compiler warnings
extra/perror.c:
Remove compiler warnings
innobase/dict/dict0dict.c:
Remove compiler warnings
innobase/dict/dict0load.c:
Remove compiler warnings
innobase/pars/pars0sym.c:
Remove compiler warnings
innobase/row/row0row.c:
Remove compiler warnings
innobase/row/row0sel.c:
Remove compiler warnings
libmysqld/lib_sql.cc:
Remove not used variables
myisam/mi_key.c:
Remove compiler warnings
regex/engine.c:
Added comment
sql/derror.cc:
Remove not used variables
sql/examples/ha_archive.cc:
Fixed bug in blob handling
Removed not used variable
sql/field.cc:
Remove compiler warnings
Remove not used variables
sql/filesort.cc:
Remove compiler warnings
sql/ha_heap.cc:
Remove not used variable
sql/ha_innodb.cc:
Remove not used variables
Remove compiler warnings
sql/handler.cc:
Remove compiler warnings and remove not used variables
sql/item.cc:
Remove compiler warnings and remove not used variables
sql/item_subselect.cc:
Remove compiler warnings
sql/item_sum.cc:
Remove compiler warnings
sql/item_sum.h:
Remove compiler warnings and remove not used variables
sql/log.cc:
Remove compiler warnings and remove not used variables
sql/log_event.cc:
Remove compiler warnings
sql/mysqld.cc:
Remove compiler warnings and remove not used variables
sql/opt_range.cc:
Remove compiler warnings and remove not used variables
sql/slave.cc:
Remove compiler warnings and remove not used variables
sql/sp_pcontext.cc:
Remove compiler warnings and remove not used variables
sql/sql_acl.cc:
Remove compiler warnings and remove not used variables
sql/sql_analyse.cc:
Remove compiler warnings and remove not used variables
sql/sql_base.cc:
Remove compiler warnings and remove not used variables
sql/sql_db.cc:
Remove compiler warnings and remove not used variables
sql/sql_help.cc:
Remove compiler warnings and remove not used variables
sql/sql_insert.cc:
Remove compiler warnings and remove not used variables
sql/sql_load.cc:
Remove compiler warnings and remove not used variables
sql/sql_parse.cc:
Remove compiler warnings and remove not used variables
sql/sql_prepare.cc:
Remove compiler warnings and remove not used variables
sql/sql_select.cc:
Remove compiler warnings and remove not used variables
sql/sql_show.cc:
Remove compiler warnings and remove not used variables
sql/sql_table.cc:
Remove compiler warnings
sql/sql_union.cc:
Remove compiler warnings
sql/sql_update.cc:
Remove compiler warnings and remove not used variables
sql/sql_yacc.yy:
Remove compiler warnings and remove not used variables
sql/strfunc.cc:
Remove compiler warnings and remove not used variables
strings/ctype-ucs2.c:
Remove compiler warnings
tests/mysql_client_test.c:
Remove compiler warnings and remove not used variables
tools/mysqlmanager.c:
Remove compiler warnings and remove not used variables
include/my_sys.h:
sol9x86, sunfire100b, qnx compatibility
mysql-test/t/rpl_rotate_logs.test:
fix the test
sql/ha_innodb.cc:
don't bother
sql/handler.cc:
few more ways to crash mysqld :)
sql/handler.h:
gdb/safemalloc workaround
sql/log.cc:
rotate a binlog on heuristic recover
sql/mysqld.cc:
rotate a binlog on heuristic recover
mysql-test/r/myisam.result:
Test of DROP TABLE when .MYI or .MYD is missing
mysql-test/r/ndb_autodiscover.result:
Update test results
mysql-test/r/rpl_EE_error.result:
Change test to conform with new handling of drop table when handler file is missing
mysql-test/t/myisam.test:
Test of DROP TABLE when .MYI or .MYD is missing
mysql-test/t/rpl_EE_error.test:
Change test to conform with new handling of drop table when handler file is missing
sql/handler.cc:
Generate a warning in ha_delete_table() if we get an error from 'delete_table()'
sql/handler.h:
More parameters to ha_delete_table() so that we can generate better error messages
sql/sql_table.cc:
Generate warning in ha_delete_table()
