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client/mysqldump.c:
  Auto merged
sql/handler.cc:
  Auto merged
sql/log_event.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/handler.h:
  SCCS merged
This commit is contained in:
unknown
2004-11-10 18:02:00 +01:00
parent e862a42d7f 313ce62f70
commit 3b3285b322
39 changed files with 394 additions and 159 deletions
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331
client/mysqldump.c
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@ -37,7 +37,7 @@
** 10 Jun 2003: SET NAMES and --no-set-names by Alexander Barkov
*/
#define DUMP_VERSION "10.8"
#define DUMP_VERSION "10.9"
#include <my_global.h>
#include <my_sys.h>
@ -78,8 +78,8 @@ static my_bool verbose=0,tFlag=0,cFlag=0,dFlag=0,quick= 1, extended_insert= 1,
lock_tables=1,ignore_errors=0,flush_logs=0,replace=0,
ignore=0,opt_drop=1,opt_keywords=0,opt_lock=1,opt_compress=0,
opt_delayed=0,create_options=1,opt_quoted=0,opt_databases=0,
opt_alldbs=0,opt_create_db=0,opt_first_slave=0,opt_set_charset,
opt_autocommit=0,opt_master_data,opt_disable_keys=1,opt_xml=0,
opt_alldbs=0,opt_create_db=0,opt_lock_all_tables=0,opt_set_charset,
opt_autocommit=0,opt_disable_keys=1,opt_xml=0,
opt_delete_master_logs=0, tty_password=0,
opt_single_transaction=0, opt_comments= 0, opt_compact= 0,
opt_hex_blob=0;
@ -93,7 +93,9 @@ static char insert_pat[12 * 1024],*opt_password=0,*current_user=0,
*err_ptr= 0;
static char compatible_mode_normal_str[255];
static ulong opt_compatible_mode= 0;
static uint opt_mysql_port= 0, err_len= 0;
#define MYSQL_OPT_MASTER_DATA_EFFECTIVE_SQL 1
#define MYSQL_OPT_MASTER_DATA_COMMENTED_SQL 2
static uint opt_mysql_port= 0, err_len= 0, opt_master_data;
static my_string opt_mysql_unix_port=0;
static int first_error=0;
static DYNAMIC_STRING extended_row;
@ -183,8 +185,9 @@ static struct my_option my_long_options[] =
(gptr*) &opt_delayed, (gptr*) &opt_delayed, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
0, 0},
{"delete-master-logs", OPT_DELETE_MASTER_LOGS,
"Delete logs on master after backup. This automatically enables --first-slave.",
0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
"Delete logs on master after backup. This automatically enables --master-data.",
(gptr*) &opt_delete_master_logs, (gptr*) &opt_delete_master_logs, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"disable-keys", 'K',
"'/*!40000 ALTER TABLE tb_name DISABLE KEYS */; and '/*!40000 ALTER TABLE tb_name ENABLE KEYS */; will be put in the output.", (gptr*) &opt_disable_keys,
(gptr*) &opt_disable_keys, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
@ -203,13 +206,18 @@ static struct my_option my_long_options[] =
(gptr*) &opt_enclosed, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0 ,0, 0},
{"fields-escaped-by", OPT_ESC, "Fields in the i.file are escaped by ...",
(gptr*) &escaped, (gptr*) &escaped, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"first-slave", 'x', "Locks all tables across all databases.",
(gptr*) &opt_first_slave, (gptr*) &opt_first_slave, 0, GET_BOOL, NO_ARG,
{"first-slave", 'x', "Deprecated, renamed to --lock-all-tables.",
(gptr*) &opt_lock_all_tables, (gptr*) &opt_lock_all_tables, 0, GET_BOOL, NO_ARG,
0, 0, 0, 0, 0, 0},
{"flush-logs", 'F', "Flush logs file in server before starting dump. "
"Note that if you dump many databases at once (using the option "
"--databases= or --all-databases), the logs will be flushed for "
"each database dumped.",
"Note that if you dump many databases at once (using the option "
"--databases= or --all-databases), the logs will be flushed for "
"each database dumped. The exception is when using --lock-all-tables "
"or --master-data: "
"in this case the logs will be flushed only once, corresponding "
"to the moment all tables are locked. So if you want your dump and "
"the log flush to happen at the same exact moment you should use "
"--lock-all-tables or --master-data with --flush-logs",
(gptr*) &flush_logs, (gptr*) &flush_logs, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
0, 0},
{"force", 'f', "Continue even if we get an sql-error.",
@ -222,17 +230,40 @@ static struct my_option my_long_options[] =
{"lines-terminated-by", OPT_LTB, "Lines in the i.file are terminated by ...",
(gptr*) &lines_terminated, (gptr*) &lines_terminated, 0, GET_STR,
REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"lock-all-tables", 'x', "Locks all tables across all databases. This "
"is achieved by taking a global read lock for the duration of the whole "
"dump. Automatically turns --single-transaction and --lock-tables off.",
(gptr*) &opt_lock_all_tables, (gptr*) &opt_lock_all_tables, 0, GET_BOOL, NO_ARG,
0, 0, 0, 0, 0, 0},
{"lock-tables", 'l', "Lock all tables for read.", (gptr*) &lock_tables,
(gptr*) &lock_tables, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
{"master-data", OPT_MASTER_DATA,
"This causes the master position and filename to be appended to your output. This automatically enables --first-slave.",
0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
"This causes the binary log position and filename to be appended to the "
"output. If equal to 1, will print it as a CHANGE MASTER command; if equal"
" to 2, that command will be prefixed with a comment symbol. "
"This option will turn --lock-all-tables on, unless "
"--single-transaction is specified too (in which case a "
"global read lock is only taken a short time at the beginning of the dump "
"- don't forget to read about --single-transaction below). In all cases "
"any action on logs will happen at the exact moment of the dump."
"Option automatically turns --lock-tables off.",
(gptr*) &opt_master_data, (gptr*) &opt_master_data, 0,
GET_UINT, REQUIRED_ARG, 0, 0, MYSQL_OPT_MASTER_DATA_COMMENTED_SQL, 0, 0, 0},
{"no-autocommit", OPT_AUTOCOMMIT,
"Wrap tables with autocommit/commit statements.",
(gptr*) &opt_autocommit, (gptr*) &opt_autocommit, 0, GET_BOOL, NO_ARG,
0, 0, 0, 0, 0, 0},
/*
Note that the combination --single-transaction --master-data
will give bullet-proof binlog position only if server >=4.1.3. That's the
old "FLUSH TABLES WITH READ LOCK does not block commit" fixed bug.
*/
{"single-transaction", OPT_TRANSACTION,
"Dump all tables in single transaction to get consistent snapshot. Mutually exclusive with --lock-tables.",
"Creates a consistent snapshot by dumping all tables in a single "
"transaction. Works ONLY for tables stored in storage engines which "
"support multiversioning (currently only InnoDB does); the dump is NOT "
"guaranteed to be consistent for other storage engines. Option "
"automatically turns off --lock-tables.",
(gptr*) &opt_single_transaction, (gptr*) &opt_single_transaction, 0,
GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
{"no-create-db", 'n',
@ -472,14 +503,6 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
char *argument)
{
switch (optid) {
case OPT_MASTER_DATA:
opt_master_data=1;
opt_first_slave=1;
break;
case OPT_DELETE_MASTER_LOGS:
opt_delete_master_logs=1;
opt_first_slave=1;
break;
case 'p':
if (argument)
{
@ -527,7 +550,6 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
case (int) OPT_OPTIMIZE:
extended_insert= opt_drop= opt_lock= quick= create_options=
opt_disable_keys= lock_tables= opt_set_charset= 1;
if (opt_single_transaction) lock_tables=0;
break;
case (int) OPT_SKIP_OPTIMIZATION:
extended_insert= opt_drop= opt_lock= quick= create_options=
@ -623,7 +645,19 @@ static int get_options(int *argc, char ***argv)
"%s: You must use option --tab with --fields-...\n", my_progname);
return(1);
}
if (opt_single_transaction)
/* Ensure consistency of the set of binlog & locking options */
if (opt_delete_master_logs && !opt_master_data)
opt_master_data= MYSQL_OPT_MASTER_DATA_COMMENTED_SQL;
if (opt_single_transaction && opt_lock_all_tables)
{
fprintf(stderr, "%s: You can't use --single-transaction and "
"--lock-all-tables at the same time.\n", my_progname);
return(1);
}
if (opt_master_data)
opt_lock_all_tables= !opt_single_transaction;
if (opt_single_transaction || opt_lock_all_tables)
lock_tables= 0;
if (enclosed && opt_enclosed)
{
@ -670,6 +704,36 @@ static void DBerror(MYSQL *mysql, const char *when)
} /* DBerror */
/*
Sends a query to server, optionally reads result, prints error message if
some.
SYNOPSIS
mysql_query_with_error_report()
mysql_con connection to use
res if non zero, result will be put there with mysql_store_result
query query to send to server
RETURN VALUES
0 query sending and (if res!=0) result reading went ok
1 error
*/
static int mysql_query_with_error_report(MYSQL *mysql_con, MYSQL_RES **res,
const char *query)
{
if (mysql_query(mysql_con, query) ||
(res && !((*res)= mysql_store_result(mysql_con))))
{
my_printf_error(0, "%s: Couldn't execute '%s': %s (%d)",
MYF(0), my_progname, query,
mysql_error(mysql_con), mysql_errno(mysql_con));
return 1;
}
return 0;
}
static void safe_exit(int error)
{
if (!first_error)
@ -717,12 +781,15 @@ static int dbConnect(char *host, char *user,char *passwd)
DBerror(&mysql_connection, "when trying to connect");
return 1;
}
/*
As we're going to set SQL_MODE, it would be lost on reconnect, so we
cannot reconnect.
*/
sock->reconnect= 0;
sprintf(buff, "/*!40100 SET @@SQL_MODE=\"%s\" */",
compatible_mode_normal_str);
if (mysql_query(sock, buff))
if (mysql_query_with_error_report(sock, 0, buff))
{
fprintf(stderr, "%s: Can't set the compatible mode %s (error %s)\n",
my_progname, compatible_mode_normal_str, mysql_error(sock));
mysql_close(sock);
safe_exit(EX_MYSQLERR);
return 1;
@ -961,7 +1028,7 @@ static uint getTableStructure(char *table, char* db)
result_table= quote_name(table, table_buff, 1);
opt_quoted_table= quote_name(table, table_buff2, 0);
if (!opt_xml && !mysql_query(sock,insert_pat))
if (!opt_xml && !mysql_query_with_error_report(sock, 0, insert_pat))
{
/* using SHOW CREATE statement */
if (!tFlag)
@ -970,10 +1037,8 @@ static uint getTableStructure(char *table, char* db)
char buff[20+FN_REFLEN];
sprintf(buff,"show create table %s", result_table);
if (mysql_query(sock, buff))
if (mysql_query_with_error_report(sock, 0, buff))
{
fprintf(stderr, "%s: Can't get CREATE TABLE for table %s (%s)\n",
my_progname, result_table, mysql_error(sock));
safe_exit(EX_MYSQLERR);
DBUG_RETURN(0);
}
@ -1010,10 +1075,8 @@ static uint getTableStructure(char *table, char* db)
mysql_free_result(tableRes);
}
sprintf(insert_pat,"show fields from %s", result_table);
if (mysql_query(sock,insert_pat) || !(tableRes=mysql_store_result(sock)))
if (mysql_query_with_error_report(sock, &tableRes, insert_pat))
{
fprintf(stderr, "%s: Can't get info about table: %s\nerror: %s\n",
my_progname, result_table, mysql_error(sock));
if (path)
my_fclose(sql_file, MYF(MY_WME));
safe_exit(EX_MYSQLERR);
@ -1053,10 +1116,8 @@ static uint getTableStructure(char *table, char* db)
my_progname, mysql_error(sock));
sprintf(insert_pat,"show fields from %s", result_table);
if (mysql_query(sock,insert_pat) || !(tableRes=mysql_store_result(sock)))
if (mysql_query_with_error_report(sock, &tableRes, insert_pat))
{
fprintf(stderr, "%s: Can't get info about table: %s\nerror: %s\n",
my_progname, result_table, mysql_error(sock));
safe_exit(EX_MYSQLERR);
DBUG_RETURN(0);
}
@ -1150,17 +1211,14 @@ static uint getTableStructure(char *table, char* db)
char buff[20+FN_REFLEN];
uint keynr,primary_key;
sprintf(buff,"show keys from %s", result_table);
if (mysql_query(sock, buff))
if (mysql_query_with_error_report(sock, &tableRes, buff))
{
fprintf(stderr, "%s: Can't get keys for table %s (%s)\n",
my_progname, result_table, mysql_error(sock));
if (path)
my_fclose(sql_file, MYF(MY_WME));
safe_exit(EX_MYSQLERR);
DBUG_RETURN(0);
}
tableRes=mysql_store_result(sock);
/* Find first which key is primary key */
keynr=0;
primary_key=INT_MAX;
@ -1224,7 +1282,7 @@ static uint getTableStructure(char *table, char* db)
char show_name_buff[FN_REFLEN];
sprintf(buff,"show table status like %s",
quote_for_like(table, show_name_buff));
if (mysql_query(sock, buff))
if (mysql_query_with_error_report(sock, &tableRes, buff))
{
if (mysql_errno(sock) != ER_PARSE_ERROR)
{ /* If old MySQL version */
@ -1234,8 +1292,7 @@ static uint getTableStructure(char *table, char* db)
result_table,mysql_error(sock));
}
}
else if (!(tableRes=mysql_store_result(sock)) ||
!(row=mysql_fetch_row(tableRes)))
else if (!(row=mysql_fetch_row(tableRes)))
{
fprintf(stderr,
"Error: Couldn't read status information for table %s (%s)\n",
@ -1439,22 +1496,14 @@ static void dumpTable(uint numFields, char *table)
fputs("\n", md_result_file);
check_io(md_result_file);
}
if (mysql_query(sock, query))
{
if (mysql_query_with_error_report(sock, 0, query))
DBerror(sock, "when retrieving data from server");
error= EX_CONSCHECK;
goto err;
}
if (quick)
res=mysql_use_result(sock);
else
res=mysql_store_result(sock);
if (!res)
{
DBerror(sock, "when retrieving data from server");
error= EX_CONSCHECK;
goto err;
}
if (verbose)
fprintf(stderr, "-- Retrieving rows...\n");
if (mysql_num_fields(res) != numFields)
@ -1789,13 +1838,8 @@ static int dump_all_databases()
MYSQL_RES *tableres;
int result=0;
if (mysql_query(sock, "SHOW DATABASES") ||
!(tableres = mysql_store_result(sock)))
{
my_printf_error(0, "Error: Couldn't execute 'SHOW DATABASES': %s",
MYF(0), mysql_error(sock));
if (mysql_query_with_error_report(sock, &tableres, "SHOW DATABASES"))
return 1;
}
while ((row = mysql_fetch_row(tableres)))
{
if (dump_all_tables_in_db(row[0]))
@ -1848,7 +1892,7 @@ static int init_dumping(char *database)
sprintf(qbuf,"SHOW CREATE DATABASE WITH IF NOT EXISTS %s",
qdatabase);
if (mysql_query(sock, qbuf) || !(dbinfo = mysql_store_result(sock)))
if (mysql_query_with_error_report(sock, &dbinfo, qbuf))
{
/* Old server version, dump generic CREATE DATABASE */
fprintf(md_result_file,
@ -1917,7 +1961,7 @@ static int dump_all_tables_in_db(char *database)
check_io(md_result_file);
}
if (lock_tables)
mysql_query(sock,"UNLOCK TABLES");
mysql_query_with_error_report(sock, 0, "UNLOCK TABLES");
return 0;
} /* dump_all_tables_in_db */
@ -1966,11 +2010,76 @@ static int dump_selected_tables(char *db, char **table_names, int tables)
check_io(md_result_file);
}
if (lock_tables)
mysql_query(sock,"UNLOCK TABLES");
mysql_query_with_error_report(sock, 0, "UNLOCK TABLES");
return 0;
} /* dump_selected_tables */
static int do_show_master_status(MYSQL *mysql_con)
{
MYSQL_ROW row;
MYSQL_RES *master;
const char *comment_prefix=
(opt_master_data == MYSQL_OPT_MASTER_DATA_COMMENTED_SQL) ? "-- " : "";
if (mysql_query_with_error_report(mysql_con, &master, "SHOW MASTER STATUS"))
{
my_printf_error(0, "Error: Couldn't execute 'SHOW MASTER STATUS': %s",
MYF(0), mysql_error(mysql_con));
return 1;
}
else
{
row = mysql_fetch_row(master);
if (row && row[0] && row[1])
{
if (opt_comments)
fprintf(md_result_file,
"\n--\n-- Position to start replication or point-in-time "
"recovery from\n--\n\n");
fprintf(md_result_file,
"%sCHANGE MASTER TO MASTER_LOG_FILE='%s', MASTER_LOG_POS=%s;\n",
comment_prefix, row[0], row[1]);
check_io(md_result_file);
}
mysql_free_result(master);
}
return 0;
}
static int do_flush_tables_read_lock(MYSQL *mysql_con)
{
return
mysql_query_with_error_report(mysql_con, 0, "FLUSH TABLES WITH READ LOCK");
}
static int do_unlock_tables(MYSQL *mysql_con)
{
return mysql_query_with_error_report(mysql_con, 0, "UNLOCK TABLES");
}
static int do_reset_master(MYSQL *mysql_con)
{
return mysql_query_with_error_report(mysql_con, 0, "RESET MASTER");
}
static int start_transaction(MYSQL *mysql_con, my_bool consistent_read_now)
{
/*
We use BEGIN for old servers. --single-transaction --master-data will fail
on old servers, but that's ok as it was already silently broken (it didn't
do a consistent read, so better tell people frankly, with the error).
*/
return (mysql_query_with_error_report(mysql_con, 0,
consistent_read_now ?
"START TRANSACTION "
"WITH CONSISTENT SNAPSHOT" :
"BEGIN"));
}
static ulong find_set(TYPELIB *lib, const char *x, uint length,
char **err_pos, uint *err_len)
@ -2068,7 +2177,7 @@ static const char *check_if_ignore_table(const char *table_name)
sprintf(buff,"show table status like %s",
quote_for_like(table_name, show_name_buff));
if (mysql_query(sock, buff))
if (mysql_query_with_error_report(sock, &res, buff))
{
if (mysql_errno(sock) != ER_PARSE_ERROR)
{ /* If old MySQL version */
@ -2079,8 +2188,7 @@ static const char *check_if_ignore_table(const char *table_name)
return 0; /* assume table is ok */
}
}
if (!(res= mysql_store_result(sock)) ||
!(row= mysql_fetch_row(res)))
if (!(row= mysql_fetch_row(res)))
{
fprintf(stderr,
"Error: Couldn't read status information for table %s (%s)\n",
@ -2099,8 +2207,6 @@ static const char *check_if_ignore_table(const char *table_name)
int main(int argc, char **argv)
{
MYSQL_ROW row;
MYSQL_RES *master;
compatible_mode_normal_str[0]= 0;
MY_INIT(argv[0]);
@ -2114,28 +2220,24 @@ int main(int argc, char **argv)
if (!path)
write_header(md_result_file, *argv);
if (opt_first_slave)
if ((opt_lock_all_tables || opt_master_data) &&
do_flush_tables_read_lock(sock))
goto err;
if (opt_single_transaction && start_transaction(sock, test(opt_master_data)))
goto err;
if (opt_delete_master_logs && do_reset_master(sock))
goto err;
if (opt_lock_all_tables || opt_master_data)
{
lock_tables=0; /* No other locks needed */
if (mysql_query(sock, "FLUSH TABLES WITH READ LOCK"))
{
my_printf_error(0, "Error: Couldn't execute 'FLUSH TABLES WITH READ LOCK': %s",
MYF(0), mysql_error(sock));
my_end(0);
return(first_error);
}
}
else if (opt_single_transaction)
{
/* There is no sense to start transaction if all tables are locked */
if (mysql_query(sock, "BEGIN"))
{
my_printf_error(0, "Error: Couldn't execute 'BEGIN': %s",
MYF(0), mysql_error(sock));
my_end(0);
return(first_error);
}
if (flush_logs && mysql_refresh(sock, REFRESH_LOG))
goto err;
flush_logs= 0; /* not anymore; that would not be sensible */
}
if (opt_master_data && do_show_master_status(sock))
goto err;
if (opt_single_transaction && do_unlock_tables(sock)) // unlock but no commit!
goto err;
if (opt_alldbs)
dump_all_databases();
else if (argc > 1 && !opt_databases)
@ -2148,57 +2250,16 @@ int main(int argc, char **argv)
/* One or more databases, all tables */
dump_databases(argv);
}
if (opt_first_slave)
{
if (opt_delete_master_logs && mysql_query(sock, "FLUSH MASTER"))
{
my_printf_error(0, "Error: Couldn't execute 'FLUSH MASTER': %s",
MYF(0), mysql_error(sock));
}
if (opt_master_data)
{
if (mysql_query(sock, "SHOW MASTER STATUS") ||
!(master = mysql_store_result(sock)))
my_printf_error(0, "Error: Couldn't execute 'SHOW MASTER STATUS': %s",
MYF(0), mysql_error(sock));
else
{
row = mysql_fetch_row(master);
if (row && row[0] && row[1])
{
if (opt_comments)
fprintf(md_result_file,
"\n--\n-- Position to start replication from\n--\n\n");
fprintf(md_result_file,
"CHANGE MASTER TO MASTER_LOG_FILE='%s', \
MASTER_LOG_POS=%s ;\n",row[0],row[1]);
check_io(md_result_file);
}
mysql_free_result(master);
}
}
if (mysql_query(sock, "UNLOCK TABLES"))
my_printf_error(0, "Error: Couldn't execute 'UNLOCK TABLES': %s",
MYF(0), mysql_error(sock));
}
else if (opt_single_transaction) /* Just to make it beautiful enough */
#ifdef HAVE_SMEM
my_free(shared_memory_base_name,MYF(MY_ALLOW_ZERO_PTR));
#endif
{
/*
In case we were locking all tables, we did not start transaction
so there is no need to commit it.
*/
/* This should just free locks as we did not change anything */
if (mysql_query(sock, "COMMIT"))
{
my_printf_error(0, "Error: Couldn't execute 'COMMIT': %s",
MYF(0), mysql_error(sock));
}
}
/*
No reason to explicitely COMMIT the transaction, neither to explicitely
UNLOCK TABLES: these will be automatically be done by the server when we
disconnect now. Saves some code here, some network trips, adds nothing to
server.
*/
err:
dbDisconnect(current_host);
if (!path)
write_footer(md_result_file);