67
71
Either this method, or we need to make cache public
68
72
Arg must be set from mysql_load() since constructor does not see
69
either the table or THD value
73
either the table or Session value
71
75
void set_io_cache_arg(void* arg) { cache.arg = arg; }
74
static int read_fixed_length(THD *thd, COPY_INFO &info, TABLE_LIST *table_list,
78
static int read_fixed_length(Session *session, COPY_INFO &info, TableList *table_list,
75
79
List<Item> &fields_vars, List<Item> &set_fields,
76
80
List<Item> &set_values, READ_INFO &read_info,
77
81
uint32_t skip_lines,
78
82
bool ignore_check_option_errors);
79
static int read_sep_field(THD *thd, COPY_INFO &info, TABLE_LIST *table_list,
83
static int read_sep_field(Session *session, COPY_INFO &info, TableList *table_list,
80
84
List<Item> &fields_vars, List<Item> &set_fields,
81
85
List<Item> &set_values, READ_INFO &read_info,
82
86
String &enclosed, uint32_t skip_lines,
83
87
bool ignore_check_option_errors);
85
static bool write_execute_load_query_log_event(THD *thd,
86
bool duplicates, bool ignore,
87
bool transactional_table,
88
THD::killed_state killed_status);
91
91
Execute LOAD DATA query
95
session - current thread
96
96
ex - sql_exchange object representing source file and its parsing rules
97
97
table_list - list of tables to which we are loading data
98
98
fields_vars - list of fields and variables to which we read
117
117
char name[FN_REFLEN];
121
121
String *field_term=ex->field_term,*escaped=ex->escaped;
122
122
String *enclosed=ex->enclosed;
124
LOAD_FILE_INFO lf_info;
125
char *db = table_list->db; // This is never null
124
char *db= table_list->db; // This is never null
127
127
If path for file is not defined, we will use the current database.
128
128
If this is not set, we will use the directory where the table to be
129
129
loaded is located
131
char *tdb= thd->db ? thd->db : db; // Result is never null
131
char *tdb= session->db ? session->db : db; // Result is never null
132
133
uint32_t skip_lines= ex->skip_lines;
133
134
bool transactional_table;
134
THD::killed_state killed_status= THD::NOT_KILLED;
135
Session::killed_state killed_status= Session::NOT_KILLED;
136
if (escaped->length() > 1 || enclosed->length() > 1)
137
/* Escape and enclosed character may be a utf8 4-byte character */
138
if (escaped->length() > 4 || enclosed->length() > 4)
138
my_message(ER_WRONG_FIELD_TERMINATORS,ER(ER_WRONG_FIELD_TERMINATORS),
140
my_error(ER_WRONG_FIELD_TERMINATORS,MYF(0),enclosed->c_ptr(), enclosed->length());
142
if (open_and_lock_tables(thd, table_list))
143
if (open_and_lock_tables(session, table_list))
144
if (setup_tables_and_check_access(thd, &thd->lex->select_lex.context,
145
&thd->lex->select_lex.top_join_list,
145
if (setup_tables_and_check_access(session, &session->lex->select_lex.context,
146
&session->lex->select_lex.top_join_list,
147
&thd->lex->select_lex.leaf_tables, true))
148
&session->lex->select_lex.leaf_tables, true))
175
176
Let us also prepare SET clause, altough it is probably empty
178
if (setup_fields(thd, 0, set_fields, MARK_COLUMNS_WRITE, 0, 0) ||
179
setup_fields(thd, 0, set_values, MARK_COLUMNS_READ, 0, 0))
179
if (setup_fields(session, 0, set_fields, MARK_COLUMNS_WRITE, 0, 0) ||
180
setup_fields(session, 0, set_values, MARK_COLUMNS_READ, 0, 0))
183
184
{ // Part field list
184
185
/* TODO: use this conds for 'WITH CHECK OPTIONS' */
185
if (setup_fields(thd, 0, fields_vars, MARK_COLUMNS_WRITE, 0, 0) ||
186
setup_fields(thd, 0, set_fields, MARK_COLUMNS_WRITE, 0, 0) ||
187
check_that_all_fields_are_given_values(thd, table, table_list))
186
if (setup_fields(session, 0, fields_vars, MARK_COLUMNS_WRITE, 0, 0) ||
187
setup_fields(session, 0, set_fields, MARK_COLUMNS_WRITE, 0, 0) ||
188
check_that_all_fields_are_given_values(session, table, table_list))
190
191
Check whenever TIMESTAMP field with auto-set feature specified
349
356
table->file->ha_start_bulk_insert((ha_rows) 0);
350
357
table->copy_blobs=1;
352
thd->abort_on_warning= (!ignore &&
353
(thd->variables.sql_mode &
354
(MODE_STRICT_TRANS_TABLES |
355
MODE_STRICT_ALL_TABLES)));
359
session->abort_on_warning= true;
357
361
if (!field_term->length() && !enclosed->length())
358
error= read_fixed_length(thd, info, table_list, fields_vars,
362
error= read_fixed_length(session, info, table_list, fields_vars,
359
363
set_fields, set_values, read_info,
360
364
skip_lines, ignore);
362
error= read_sep_field(thd, info, table_list, fields_vars,
366
error= read_sep_field(session, info, table_list, fields_vars,
363
367
set_fields, set_values, read_info,
364
368
*enclosed, skip_lines, ignore);
365
369
if (table->file->ha_end_bulk_insert() && !error)
375
379
my_close(file,MYF(0));
376
380
free_blobs(table); /* if pack_blob was used */
377
381
table->copy_blobs=0;
378
thd->count_cuted_fields= CHECK_FIELD_IGNORE;
382
session->count_cuted_fields= CHECK_FIELD_IGNORE;
380
384
simulated killing in the middle of per-row loop
381
385
must be effective for binlogging
383
killed_status= (error == 0)? THD::NOT_KILLED : thd->killed;
387
killed_status= (error == 0)? Session::NOT_KILLED : session->killed;
386
390
if (read_file_from_client)
387
391
while (!read_info.next_line())
390
if (mysql_bin_log.is_open())
394
Make sure last block (the one which caused the error) gets
395
logged. This is needed because otherwise after write of (to
396
the binlog, not to read_info (which is a cache))
397
Delete_file_log_event the bad block will remain in read_info
398
(because pre_read is not called at the end of the last
399
block; remember pre_read is called whenever a new block is
400
read from disk). At the end of mysql_load(), the destructor
401
of read_info will call end_io_cache() which will flush
402
read_info, so we will finally have this in the binlog:
404
Append_block # The last successfull block
406
Append_block # The failing block
408
Or could also be (for a small file)
409
Create_file # The failing block
410
which is nonsense (Delete_file is not written in this case, because:
411
Create_file has not been written, so Delete_file is not written, then
412
when read_info is destroyed end_io_cache() is called which writes
415
read_info.end_io_cache();
416
/* If the file was not empty, wrote_create_file is true */
417
if (lf_info.wrote_create_file)
419
if (thd->transaction.stmt.modified_non_trans_table)
420
write_execute_load_query_log_event(thd, handle_duplicates,
421
ignore, transactional_table,
425
Delete_file_log_event d(thd, db, transactional_table);
426
d.flags|= LOG_EVENT_UPDATE_TABLE_MAP_VERSION_F;
427
mysql_bin_log.write(&d);
432
394
error= -1; // Error on read
435
397
sprintf(name, ER(ER_LOAD_INFO), (uint32_t) info.records, (uint32_t) info.deleted,
436
(uint32_t) (info.records - info.copied), (uint32_t) thd->cuted_fields);
438
if (thd->transaction.stmt.modified_non_trans_table)
439
thd->transaction.all.modified_non_trans_table= true;
441
if (mysql_bin_log.is_open())
444
We need to do the job that is normally done inside
445
binlog_query() here, which is to ensure that the pending event
446
is written before tables are unlocked and before any other
447
events are written. We also need to update the table map
448
version for the binary log to mark that table maps are invalid
451
if (thd->current_stmt_binlog_row_based)
452
thd->binlog_flush_pending_rows_event(true);
456
As already explained above, we need to call end_io_cache() or the last
457
block will be logged only after Execute_load_query_log_event (which is
458
wrong), when read_info is destroyed.
460
read_info.end_io_cache();
461
if (lf_info.wrote_create_file)
463
write_execute_load_query_log_event(thd, handle_duplicates, ignore,
464
transactional_table,killed_status);
398
(uint32_t) (info.records - info.copied), (uint32_t) session->cuted_fields);
400
if (session->transaction.stmt.modified_non_trans_table)
401
session->transaction.all.modified_non_trans_table= true;
469
403
/* ok to client sent only after binlog write and engine commit */
470
my_ok(thd, info.copied + info.deleted, 0L, name);
404
my_ok(session, info.copied + info.deleted, 0L, name);
472
406
assert(transactional_table || !(info.copied || info.deleted) ||
473
thd->transaction.stmt.modified_non_trans_table);
407
session->transaction.stmt.modified_non_trans_table);
474
408
table->file->ha_release_auto_increment();
475
409
table->auto_increment_field_not_null= false;
476
thd->abort_on_warning= 0;
410
session->abort_on_warning= 0;
481
/* Not a very useful function; just to avoid duplication of code */
482
static bool write_execute_load_query_log_event(THD *thd,
483
bool duplicates, bool ignore,
484
bool transactional_table,
485
THD::killed_state killed_err_arg)
487
Execute_load_query_log_event
488
e(thd, thd->query, thd->query_length,
489
(char*)thd->lex->fname_start - (char*)thd->query,
490
(char*)thd->lex->fname_end - (char*)thd->query,
491
(duplicates == DUP_REPLACE) ? LOAD_DUP_REPLACE :
492
(ignore ? LOAD_DUP_IGNORE : LOAD_DUP_ERROR),
493
transactional_table, false, killed_err_arg);
494
e.flags|= LOG_EVENT_UPDATE_TABLE_MAP_VERSION_F;
495
return mysql_bin_log.write(&e);
499
415
/****************************************************************************
500
416
** Read of rows of fixed size + optional garage + optonal newline
501
417
****************************************************************************/
504
read_fixed_length(THD *thd, COPY_INFO &info, TABLE_LIST *table_list,
420
read_fixed_length(Session *session, COPY_INFO &info, TableList *table_list,
505
421
List<Item> &fields_vars, List<Item> &set_fields,
506
422
List<Item> &set_values, READ_INFO &read_info,
507
423
uint32_t skip_lines, bool ignore_check_option_errors)
509
425
List_iterator_fast<Item> it(fields_vars);
510
426
Item_field *sql_field;
511
TABLE *table= table_list->table;
427
Table *table= table_list->table;
517
433
while (!read_info.read_fixed_length())
521
thd->send_kill_message();
437
session->send_kill_message();
581
497
if (pos != read_info.row_end)
583
thd->cuted_fields++; /* To long row */
584
push_warning_printf(thd, DRIZZLE_ERROR::WARN_LEVEL_WARN,
585
ER_WARN_TOO_MANY_RECORDS,
586
ER(ER_WARN_TOO_MANY_RECORDS), thd->row_count);
499
session->cuted_fields++; /* To long row */
500
push_warning_printf(session, DRIZZLE_ERROR::WARN_LEVEL_WARN,
501
ER_WARN_TOO_MANY_RECORDS,
502
ER(ER_WARN_TOO_MANY_RECORDS), session->row_count);
590
fill_record(thd, set_fields, set_values,
505
if (session->killed ||
506
fill_record(session, set_fields, set_values,
591
507
ignore_check_option_errors))
594
err= write_record(thd, table, &info);
510
err= write_record(session, table, &info);
595
511
table->auto_increment_field_not_null= false;
600
516
We don't need to reset auto-increment field since we are restoring
601
517
its default value at the beginning of each loop iteration.