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Viewing changes to plugin/innobase/row/row0mysql.c

  • Committer: Patrick Crews
  • Date: 2010-09-14 20:21:03 UTC
  • mto: (1771.1.1 pcrews)
  • mto: This revision was merged to the branch mainline in revision 1772.
  • Revision ID: gleebix@gmail.com-20100914202103-1db2n0bshzafep19
Moved transaction_log tests into updated non-publisher-based tree

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plugin/innobase/row/row0mysql.c
1
1
/*****************************************************************************
2
2
 
3
 
Copyright (C) 2000, 2010, Innobase Oy. All Rights Reserved.
 
3
Copyright (c) 2000, 2009, Innobase Oy. All Rights Reserved.
4
4
 
5
5
This program is free software; you can redistribute it and/or modify it under
6
6
the terms of the GNU General Public License as published by the Free Software
11
11
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
12
12
 
13
13
You should have received a copy of the GNU General Public License along with
14
 
this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
15
 
St, Fifth Floor, Boston, MA 02110-1301 USA
 
14
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 
15
Place, Suite 330, Boston, MA 02111-1307 USA
16
16
 
17
17
*****************************************************************************/
18
18
 
95
95
        ((str1_len) == sizeof(str2_onstack) \
96
96
         && memcmp(str1, str2_onstack, sizeof(str2_onstack)) == 0)
97
97
 
 
98
/*******************************************************************//**
 
99
Determine if the given name is a name reserved for MySQL system tables.
 
100
@return TRUE if name is a MySQL system table name */
 
101
static
 
102
ibool
 
103
row_mysql_is_system_table(
 
104
/*======================*/
 
105
        const char*     name)
 
106
{
 
107
        if (strncmp(name, "mysql/", 6) != 0) {
 
108
 
 
109
                return(FALSE);
 
110
        }
 
111
 
 
112
        return(0 == strcmp(name + 6, "host")
 
113
               || 0 == strcmp(name + 6, "user")
 
114
               || 0 == strcmp(name + 6, "db"));
 
115
}
 
116
 
98
117
/*********************************************************************//**
99
118
If a table is not yet in the drop list, adds the table to the list of tables
100
119
which the master thread drops in background. We need this on Unix because in
249
268
}
250
269
 
251
270
/**************************************************************//**
252
 
Pad a column with spaces. */
253
 
UNIV_INTERN
254
 
void
255
 
row_mysql_pad_col(
256
 
/*==============*/
257
 
        ulint   mbminlen,       /*!< in: minimum size of a character,
258
 
                                in bytes */
259
 
        byte*   pad,            /*!< out: padded buffer */
260
 
        ulint   len)            /*!< in: number of bytes to pad */
261
 
{
262
 
        const byte*     pad_end;
263
 
 
264
 
        switch (UNIV_EXPECT(mbminlen, 1)) {
265
 
        default:
266
 
                ut_error;
267
 
        case 1:
268
 
                /* space=0x20 */
269
 
                memset(pad, 0x20, len);
270
 
                break;
271
 
        case 2:
272
 
                /* space=0x0020 */
273
 
                pad_end = pad + len;
274
 
                ut_a(!(len % 2));
275
 
                do {
276
 
                        *pad++ = 0x00;
277
 
                        *pad++ = 0x20;
278
 
                } while (pad < pad_end);
279
 
                break;
280
 
        case 4:
281
 
                /* space=0x00000020 */
282
 
                pad_end = pad + len;
283
 
                ut_a(!(len % 4));
284
 
                do {
285
 
                        *pad++ = 0x00;
286
 
                        *pad++ = 0x00;
287
 
                        *pad++ = 0x00;
288
 
                        *pad++ = 0x20;
289
 
                } while (pad < pad_end);
290
 
                break;
291
 
        }
292
 
}
293
 
 
294
 
/**************************************************************//**
295
271
Stores a non-SQL-NULL field given in the MySQL format in the InnoDB format.
296
272
The counterpart of this function is row_sel_field_store_in_mysql_format() in
297
273
row0sel.c.
383
359
                        /* Remove trailing spaces from old style VARCHAR
384
360
                        columns. */
385
361
 
386
 
                        /* Handle Unicode strings differently. */
 
362
                        /* Handle UCS2 strings differently. */
387
363
                        ulint   mbminlen        = dtype_get_mbminlen(dtype);
388
364
 
389
365
                        ptr = mysql_data;
390
366
 
391
 
                        switch (mbminlen) {
392
 
                        default:
393
 
                                ut_error;
394
 
                        case 4:
395
 
                                /* space=0x00000020 */
396
 
                                /* Trim "half-chars", just in case. */
397
 
                                col_len &= ~3;
398
 
 
399
 
                                while (col_len >= 4
400
 
                                       && ptr[col_len - 4] == 0x00
401
 
                                       && ptr[col_len - 3] == 0x00
402
 
                                       && ptr[col_len - 2] == 0x00
403
 
                                       && ptr[col_len - 1] == 0x20) {
404
 
                                        col_len -= 4;
405
 
                                }
406
 
                                break;
407
 
                        case 2:
 
367
                        if (mbminlen == 2) {
408
368
                                /* space=0x0020 */
409
369
                                /* Trim "half-chars", just in case. */
410
370
                                col_len &= ~1;
413
373
                                       && ptr[col_len - 1] == 0x20) {
414
374
                                        col_len -= 2;
415
375
                                }
416
 
                                break;
417
 
                        case 1:
 
376
                        } else {
 
377
                                ut_a(mbminlen == 1);
418
378
                                /* space=0x20 */
419
379
                                while (col_len > 0
420
380
                                       && ptr[col_len - 1] == 0x20) {
486
446
                                        row is used, as row may contain
487
447
                                        pointers to this record! */
488
448
{
489
 
        const mysql_row_templ_t*templ;
 
449
        mysql_row_templ_t*      templ;
490
450
        dfield_t*               dfield;
491
451
        ulint                   i;
492
452
 
527
487
/****************************************************************//**
528
488
Handles user errors and lock waits detected by the database engine.
529
489
@return TRUE if it was a lock wait and we should continue running the
530
 
query thread and in that case the thr is ALREADY in the running state. */
 
490
query thread */
531
491
UNIV_INTERN
532
492
ibool
533
493
row_mysql_handle_errors(
552
512
        switch (err) {
553
513
        case DB_LOCK_WAIT_TIMEOUT:
554
514
                if (row_rollback_on_timeout) {
555
 
                        trx_general_rollback_for_mysql(trx, NULL);
 
515
                        trx_general_rollback_for_mysql(trx, FALSE, NULL);
556
516
                        break;
557
517
                }
558
518
                /* fall through */
564
524
        case DB_CANNOT_ADD_CONSTRAINT:
565
525
        case DB_TOO_MANY_CONCURRENT_TRXS:
566
526
        case DB_OUT_OF_FILE_SPACE:
567
 
        case DB_INTERRUPTED:
568
527
                if (savept) {
569
528
                        /* Roll back the latest, possibly incomplete
570
529
                        insertion or update */
571
530
 
572
 
                        trx_general_rollback_for_mysql(trx, savept);
 
531
                        trx_general_rollback_for_mysql(trx, TRUE, savept);
573
532
                }
574
533
                /* MySQL will roll back the latest SQL statement */
575
534
                break;
591
550
                /* Roll back the whole transaction; this resolution was added
592
551
                to version 3.23.43 */
593
552
 
594
 
                trx_general_rollback_for_mysql(trx, NULL);
 
553
                trx_general_rollback_for_mysql(trx, FALSE, NULL);
595
554
                break;
596
555
 
597
556
        case DB_MUST_GET_MORE_FILE_SPACE:
618
577
                      "InnoDB: " REFMAN "forcing-recovery.html"
619
578
                      " for help.\n", stderr);
620
579
                break;
621
 
        case DB_FOREIGN_EXCEED_MAX_CASCADE:
622
 
                fprintf(stderr, "InnoDB: Cannot delete/update rows with"
623
 
                        " cascading foreign key constraints that exceed max"
624
 
                        " depth of %lu\n"
625
 
                        "Please drop excessive foreign constraints"
626
 
                        " and try again\n", (ulong) DICT_FK_MAX_RECURSIVE_LOAD);
627
 
                break;
628
580
        default:
629
581
                fprintf(stderr, "InnoDB: unknown error code %lu\n",
630
582
                        (ulong) err);
659
611
 
660
612
        heap = mem_heap_create(sizeof *prebuilt + 128);
661
613
 
662
 
        prebuilt = static_cast<row_prebuilt_t *>(mem_heap_zalloc(heap, sizeof *prebuilt));
 
614
        prebuilt = mem_heap_zalloc(heap, sizeof *prebuilt);
663
615
 
664
616
        prebuilt->magic_n = ROW_PREBUILT_ALLOCATED;
665
617
        prebuilt->magic_n2 = ROW_PREBUILT_ALLOCATED;
674
626
 
675
627
        prebuilt->select_lock_type = LOCK_NONE;
676
628
        prebuilt->stored_select_lock_type = 99999999;
677
 
        UNIV_MEM_INVALID(&prebuilt->stored_select_lock_type,
678
 
                         sizeof prebuilt->stored_select_lock_type);
679
629
 
680
630
        prebuilt->search_tuple = dtuple_create(
681
631
                heap, 2 * dict_table_get_n_cols(table));
840
790
        }
841
791
}
842
792
 
843
 
dtuple_t* row_get_prebuilt_insert_row(row_prebuilt_t*   prebuilt);
844
 
 
845
793
/*********************************************************************//**
846
794
Gets pointer to a prebuilt dtuple used in insertions. If the insert graph
847
795
has not yet been built in the prebuilt struct, then this function first
848
796
builds it.
849
797
@return prebuilt dtuple; the column type information is also set in it */
 
798
static
850
799
dtuple_t*
851
800
row_get_prebuilt_insert_row(
852
801
/*========================*/
869
818
                prebuilt->ins_node = node;
870
819
 
871
820
                if (prebuilt->ins_upd_rec_buff == NULL) {
872
 
                        prebuilt->ins_upd_rec_buff = static_cast<byte *>(mem_heap_alloc(
873
 
                                prebuilt->heap, prebuilt->mysql_row_len));
 
821
                        prebuilt->ins_upd_rec_buff = mem_heap_alloc(
 
822
                                prebuilt->heap, prebuilt->mysql_row_len);
874
823
                }
875
824
 
876
825
                row = dtuple_create(prebuilt->heap,
880
829
 
881
830
                ins_node_set_new_row(node, row);
882
831
 
883
 
                prebuilt->ins_graph = static_cast<que_fork_t *>(que_node_get_parent(
 
832
                prebuilt->ins_graph = que_node_get_parent(
884
833
                        pars_complete_graph_for_exec(node,
885
834
                                                     prebuilt->trx,
886
 
                                                     prebuilt->heap)));
 
835
                                                     prebuilt->heap));
887
836
                prebuilt->ins_graph->state = QUE_FORK_ACTIVE;
888
837
        }
889
838
 
914
863
        if (counter > 2000000000
915
864
            || ((ib_int64_t)counter > 16 + table->stat_n_rows / 16)) {
916
865
 
917
 
                dict_update_statistics(table, FALSE /* update even if stats
918
 
                                                    are initialized */);
 
866
                dict_update_statistics(table);
919
867
        }
920
868
}
921
869
 
922
870
/*********************************************************************//**
923
 
Unlocks AUTO_INC type locks that were possibly reserved by a trx. This
924
 
function should be called at the the end of an SQL statement, by the
925
 
connection thread that owns the transaction (trx->mysql_thd). */
 
871
Unlocks AUTO_INC type locks that were possibly reserved by a trx. */
926
872
UNIV_INTERN
927
873
void
928
874
row_unlock_table_autoinc_for_mysql(
929
875
/*===============================*/
930
876
        trx_t*  trx)    /*!< in/out: transaction */
931
877
{
932
 
        if (lock_trx_holds_autoinc_locks(trx)) {
933
 
                mutex_enter(&kernel_mutex);
934
 
 
935
 
                lock_release_autoinc_locks(trx);
936
 
 
937
 
                mutex_exit(&kernel_mutex);
938
 
        }
 
878
        mutex_enter(&kernel_mutex);
 
879
 
 
880
        lock_release_autoinc_locks(trx);
 
881
 
 
882
        mutex_exit(&kernel_mutex);
939
883
}
940
884
 
941
885
/*********************************************************************//**
1066
1010
        trx_start_if_not_started(trx);
1067
1011
 
1068
1012
        if (table) {
1069
 
                err = lock_table(0, table, static_cast<lock_mode>(mode), thr);
 
1013
                err = lock_table(0, table, mode, thr);
1070
1014
        } else {
1071
1015
                err = lock_table(0, prebuilt->table,
1072
 
                                 static_cast<lock_mode>(prebuilt->select_lock_type), thr);
 
1016
                                 prebuilt->select_lock_type, thr);
1073
1017
        }
1074
1018
 
1075
1019
        trx->error_state = err;
1244
1188
 
1245
1189
                node = sel_node_create(prebuilt->heap);
1246
1190
 
1247
 
                prebuilt->sel_graph = static_cast<que_fork_t *>(que_node_get_parent(
 
1191
                prebuilt->sel_graph = que_node_get_parent(
1248
1192
                        pars_complete_graph_for_exec(node,
1249
1193
                                                     prebuilt->trx,
1250
 
                                                     prebuilt->heap)));
 
1194
                                                     prebuilt->heap));
1251
1195
 
1252
1196
                prebuilt->sel_graph->state = QUE_FORK_ACTIVE;
1253
1197
        }
1315
1259
 
1316
1260
                prebuilt->upd_node = node;
1317
1261
 
1318
 
                prebuilt->upd_graph = static_cast<que_fork_t *>(que_node_get_parent(
 
1262
                prebuilt->upd_graph = que_node_get_parent(
1319
1263
                        pars_complete_graph_for_exec(node,
1320
1264
                                                     prebuilt->trx,
1321
 
                                                     prebuilt->heap)));
 
1265
                                                     prebuilt->heap));
1322
1266
                prebuilt->upd_graph->state = QUE_FORK_ACTIVE;
1323
1267
        }
1324
1268
 
1432
1376
run_again:
1433
1377
        thr->run_node = node;
1434
1378
        thr->prev_node = node;
1435
 
        thr->fk_cascade_depth = 0;
1436
1379
 
1437
1380
        row_upd_step(thr);
1438
1381
 
1439
 
        /* The recursive call for cascading update/delete happens
1440
 
        in above row_upd_step(), reset the counter once we come
1441
 
        out of the recursive call, so it does not accumulate for
1442
 
        different row deletes */
1443
 
        thr->fk_cascade_depth = 0;
1444
 
 
1445
1382
        err = trx->error_state;
1446
1383
 
1447
 
        /* Reset fk_cascade_depth back to 0 */
1448
 
        thr->fk_cascade_depth = 0;
1449
 
 
1450
1384
        if (err != DB_SUCCESS) {
1451
1385
                que_thr_stop_for_mysql(thr);
1452
1386
 
1483
1417
                srv_n_rows_updated++;
1484
1418
        }
1485
1419
 
1486
 
        /* We update table statistics only if it is a DELETE or UPDATE
1487
 
        that changes indexed columns, UPDATEs that change only non-indexed
1488
 
        columns would not affect statistics. */
1489
 
        if (node->is_delete || !(node->cmpl_info & UPD_NODE_NO_ORD_CHANGE)) {
1490
 
                row_update_statistics_if_needed(prebuilt->table);
1491
 
        }
 
1420
        row_update_statistics_if_needed(prebuilt->table);
1492
1421
 
1493
1422
        trx->op_info = "";
1494
1423
 
1496
1425
}
1497
1426
 
1498
1427
/*********************************************************************//**
1499
 
This can only be used when srv_locks_unsafe_for_binlog is TRUE or this
1500
 
session is using a READ COMMITTED or READ UNCOMMITTED isolation level.
1501
 
Before calling this function row_search_for_mysql() must have
1502
 
initialized prebuilt->new_rec_locks to store the information which new
1503
 
record locks really were set. This function removes a newly set
1504
 
clustered index record lock under prebuilt->pcur or
1505
 
prebuilt->clust_pcur.  Thus, this implements a 'mini-rollback' that
1506
 
releases the latest clustered index record lock we set.
1507
 
@return error code or DB_SUCCESS */
 
1428
This can only be used when srv_locks_unsafe_for_binlog is TRUE or
 
1429
this session is using a READ COMMITTED isolation level. Before
 
1430
calling this function we must use trx_reset_new_rec_lock_info() and
 
1431
trx_register_new_rec_lock() to store the information which new record locks
 
1432
really were set. This function removes a newly set lock under prebuilt->pcur,
 
1433
and also under prebuilt->clust_pcur. Currently, this is only used and tested
 
1434
in the case of an UPDATE or a DELETE statement, where the row lock is of the
 
1435
LOCK_X type.
 
1436
Thus, this implements a 'mini-rollback' that releases the latest record
 
1437
locks we set.
 
1438
@return error code or DB_SUCCESS */
1508
1439
UNIV_INTERN
1509
1440
int
1510
1441
row_unlock_for_mysql(
1511
1442
/*=================*/
1512
 
        row_prebuilt_t* prebuilt,       /*!< in/out: prebuilt struct in MySQL
 
1443
        row_prebuilt_t* prebuilt,       /*!< in: prebuilt struct in MySQL
1513
1444
                                        handle */
1514
 
        ibool           has_latches_on_recs)/*!< in: TRUE if called so
1515
 
                                        that we have the latches on
1516
 
                                        the records under pcur and
1517
 
                                        clust_pcur, and we do not need
1518
 
                                        to reposition the cursors. */
 
1445
        ibool           has_latches_on_recs)/*!< TRUE if called so that we have
 
1446
                                        the latches on the records under pcur
 
1447
                                        and clust_pcur, and we do not need to
 
1448
                                        reposition the cursors. */
1519
1449
{
1520
1450
        btr_pcur_t*     pcur            = prebuilt->pcur;
1521
1451
        btr_pcur_t*     clust_pcur      = prebuilt->clust_pcur;
1526
1456
 
1527
1457
        if (UNIV_UNLIKELY
1528
1458
            (!srv_locks_unsafe_for_binlog
1529
 
             && trx->isolation_level > TRX_ISO_READ_COMMITTED)) {
 
1459
             && trx->isolation_level != TRX_ISO_READ_COMMITTED)) {
1530
1460
 
1531
1461
                fprintf(stderr,
1532
1462
                        "InnoDB: Error: calling row_unlock_for_mysql though\n"
1598
1528
                        }
1599
1529
                }
1600
1530
 
1601
 
                if (rec_trx_id != trx->id) {
 
1531
                if (ut_dulint_cmp(rec_trx_id, trx->id) != 0) {
1602
1532
                        /* We did not update the record: unlock it */
1603
1533
 
1604
1534
                        rec = btr_pcur_get_rec(pcur);
1605
1535
                        index = btr_pcur_get_btr_cur(pcur)->index;
1606
1536
 
1607
1537
                        lock_rec_unlock(trx, btr_pcur_get_block(pcur),
1608
 
                                        rec, static_cast<lock_mode>(prebuilt->select_lock_type));
 
1538
                                        rec, prebuilt->select_lock_type);
1609
1539
 
1610
1540
                        if (prebuilt->new_rec_locks >= 2) {
1611
1541
                                rec = btr_pcur_get_rec(clust_pcur);
1614
1544
                                lock_rec_unlock(trx,
1615
1545
                                                btr_pcur_get_block(clust_pcur),
1616
1546
                                                rec,
1617
 
                                                static_cast<lock_mode>(prebuilt->select_lock_type));
 
1547
                                                prebuilt->select_lock_type);
1618
1548
                        }
1619
1549
                }
1620
1550
no_unlock:
1642
1572
        trx_t*  trx;
1643
1573
 
1644
1574
        trx = thr_get_trx(thr);
1645
 
 
1646
 
        /* Increment fk_cascade_depth to record the recursive call depth on
1647
 
        a single update/delete that affects multiple tables chained
1648
 
        together with foreign key relations. */
1649
 
        thr->fk_cascade_depth++;
1650
 
 
1651
 
        if (thr->fk_cascade_depth > FK_MAX_CASCADE_DEL) {
1652
 
                return (DB_FOREIGN_EXCEED_MAX_CASCADE);
1653
 
        }
1654
1575
run_again:
1655
1576
        thr->run_node = node;
1656
1577
        thr->prev_node = node;
1657
1578
 
1658
1579
        row_upd_step(thr);
1659
1580
 
1660
 
        /* The recursive call for cascading update/delete happens
1661
 
        in above row_upd_step(), reset the counter once we come
1662
 
        out of the recursive call, so it does not accumulate for
1663
 
        different row deletes */
1664
 
        thr->fk_cascade_depth = 0;
1665
 
 
1666
1581
        err = trx->error_state;
1667
1582
 
1668
1583
        /* Note that the cascade node is a subnode of another InnoDB
1728
1643
}
1729
1644
 
1730
1645
/*********************************************************************//**
 
1646
Calculates the key number used inside MySQL for an Innobase index. We have
 
1647
to take into account if we generated a default clustered index for the table
 
1648
@return the key number used inside MySQL */
 
1649
UNIV_INTERN
 
1650
ulint
 
1651
row_get_mysql_key_number_for_index(
 
1652
/*===============================*/
 
1653
        const dict_index_t*     index)  /*!< in: index */
 
1654
{
 
1655
        const dict_index_t*     ind;
 
1656
        ulint                   i;
 
1657
 
 
1658
        ut_a(index);
 
1659
 
 
1660
        i = 0;
 
1661
        ind = dict_table_get_first_index(index->table);
 
1662
 
 
1663
        while (index != ind) {
 
1664
                ind = dict_table_get_next_index(ind);
 
1665
                i++;
 
1666
        }
 
1667
 
 
1668
        if (row_table_got_default_clust_index(index->table)) {
 
1669
                ut_a(i > 0);
 
1670
                i--;
 
1671
        }
 
1672
 
 
1673
        return(i);
 
1674
}
 
1675
 
 
1676
/*********************************************************************//**
1731
1677
Locks the data dictionary in shared mode from modifications, for performing
1732
1678
foreign key check, rollback, or other operation invisible to MySQL. */
1733
1679
UNIV_INTERN
1823
1769
        const char*     table_name;
1824
1770
        ulint           table_name_len;
1825
1771
        ulint           err;
 
1772
        ulint           i;
1826
1773
 
1827
1774
        ut_ad(trx->mysql_thread_id == os_thread_get_curr_id());
1828
1775
#ifdef UNIV_SYNC_DEBUG
1837
1784
                      " by the user.\n"
1838
1785
                      "InnoDB: Shut down mysqld and edit my.cnf so that newraw"
1839
1786
                      " is replaced with raw.\n", stderr);
 
1787
err_exit:
1840
1788
                dict_mem_table_free(table);
1841
1789
                trx_commit_for_mysql(trx);
1842
1790
 
1845
1793
 
1846
1794
        trx->op_info = "creating table";
1847
1795
 
 
1796
        if (row_mysql_is_system_table(table->name)) {
 
1797
 
 
1798
                fprintf(stderr,
 
1799
                        "InnoDB: Error: trying to create a MySQL system"
 
1800
                        " table %s of type InnoDB.\n"
 
1801
                        "InnoDB: MySQL system tables must be"
 
1802
                        " of the MyISAM type!\n",
 
1803
                        table->name);
 
1804
                goto err_exit;
 
1805
        }
 
1806
 
 
1807
        /* Check that no reserved column names are used. */
 
1808
        for (i = 0; i < dict_table_get_n_user_cols(table); i++) {
 
1809
                if (dict_col_name_is_reserved(
 
1810
                            dict_table_get_col_name(table, i))) {
 
1811
 
 
1812
                        goto err_exit;
 
1813
                }
 
1814
        }
 
1815
 
1848
1816
        trx_start_if_not_started(trx);
1849
1817
 
1850
1818
        /* The table name is prefixed with the database name and a '/'.
1912
1880
 
1913
1881
        thr = pars_complete_graph_for_exec(node, trx, heap);
1914
1882
 
1915
 
        ut_a(thr == que_fork_start_command(static_cast<que_fork_t *>(que_node_get_parent(thr))));
 
1883
        ut_a(thr == que_fork_start_command(que_node_get_parent(thr)));
1916
1884
        que_run_threads(thr);
1917
1885
 
1918
1886
        err = trx->error_state;
1919
1887
 
 
1888
        if (UNIV_UNLIKELY(err != DB_SUCCESS)) {
 
1889
                trx->error_state = DB_SUCCESS;
 
1890
                trx_general_rollback_for_mysql(trx, FALSE, NULL);
 
1891
        }
 
1892
 
1920
1893
        switch (err) {
1921
 
        case DB_SUCCESS:
1922
 
                break;
1923
1894
        case DB_OUT_OF_FILE_SPACE:
1924
 
                trx->error_state = DB_SUCCESS;
1925
 
                trx_general_rollback_for_mysql(trx, NULL);
1926
 
 
1927
1895
                ut_print_timestamp(stderr);
1928
1896
                fputs("  InnoDB: Warning: cannot create table ",
1929
1897
                      stderr);
1938
1906
                break;
1939
1907
 
1940
1908
        case DB_DUPLICATE_KEY:
1941
 
        default:
 
1909
                ut_print_timestamp(stderr);
 
1910
                fputs("  InnoDB: Error: table ", stderr);
 
1911
                ut_print_name(stderr, trx, TRUE, table->name);
 
1912
                fputs(" already exists in InnoDB internal\n"
 
1913
                      "InnoDB: data dictionary. Have you deleted"
 
1914
                      " the .frm file\n"
 
1915
                      "InnoDB: and not used DROP TABLE?"
 
1916
                      " Have you used DROP DATABASE\n"
 
1917
                      "InnoDB: for InnoDB tables in"
 
1918
                      " MySQL version <= 3.23.43?\n"
 
1919
                      "InnoDB: See the Restrictions section"
 
1920
                      " of the InnoDB manual.\n"
 
1921
                      "InnoDB: You can drop the orphaned table"
 
1922
                      " inside InnoDB by\n"
 
1923
                      "InnoDB: creating an InnoDB table with"
 
1924
                      " the same name in another\n"
 
1925
                      "InnoDB: database and copying the .frm file"
 
1926
                      " to the current database.\n"
 
1927
                      "InnoDB: Then MySQL thinks the table exists,"
 
1928
                      " and DROP TABLE will\n"
 
1929
                      "InnoDB: succeed.\n"
 
1930
                      "InnoDB: You can look for further help from\n"
 
1931
                      "InnoDB: " REFMAN "innodb-troubleshooting.html\n",
 
1932
                      stderr);
 
1933
 
1942
1934
                /* We may also get err == DB_ERROR if the .ibd file for the
1943
1935
                table already exists */
1944
1936
 
1945
 
                trx->error_state = DB_SUCCESS;
1946
 
                trx_general_rollback_for_mysql(trx, NULL);
1947
 
                dict_mem_table_free(table);
1948
1937
                break;
1949
1938
        }
1950
1939
 
2053
2042
 
2054
2043
        thr = pars_complete_graph_for_exec(node, trx, heap);
2055
2044
 
2056
 
        ut_a(thr == que_fork_start_command(static_cast<que_fork_t *>(que_node_get_parent(thr))));
 
2045
        ut_a(thr == que_fork_start_command(que_node_get_parent(thr)));
2057
2046
        que_run_threads(thr);
2058
2047
 
2059
2048
        err = trx->error_state;
2066
2055
 
2067
2056
                trx->error_state = DB_SUCCESS;
2068
2057
 
2069
 
                trx_general_rollback_for_mysql(trx, NULL);
 
2058
                trx_general_rollback_for_mysql(trx, FALSE, NULL);
2070
2059
 
2071
2060
                row_drop_table_for_mysql(table_name, trx, FALSE);
2072
2061
 
2087
2076
the foreign key constraints declared in the string. This function
2088
2077
should be called after the indexes for a table have been created.
2089
2078
Each foreign key constraint must be accompanied with indexes in
2090
 
both participating tables. The indexes are allowed to contain more
 
2079
bot participating tables. The indexes are allowed to contain more
2091
2080
fields than mentioned in the constraint. Check also that foreign key
2092
2081
constraints which reference this table are ok.
2093
2082
@return error code or DB_SUCCESS */
2101
2090
                                FOREIGN KEY (a, b) REFERENCES table2(c, d),
2102
2091
                                        table2 can be written also with the
2103
2092
                                        database name before it: test.table2 */
2104
 
        size_t          sql_length,     /*!< in: length of sql_string */
2105
2093
        const char*     name,           /*!< in: table full name in the
2106
2094
                                        normalized form
2107
2095
                                        database_name/table_name */
2123
2111
 
2124
2112
        trx_set_dict_operation(trx, TRX_DICT_OP_TABLE);
2125
2113
 
2126
 
        err = dict_create_foreign_constraints(trx, sql_string, sql_length,
2127
 
                                              name, reject_fks);
 
2114
        err = dict_create_foreign_constraints(trx, sql_string, name,
 
2115
                                              reject_fks);
2128
2116
        if (err == DB_SUCCESS) {
2129
2117
                /* Check that also referencing constraints are ok */
2130
 
                err = dict_load_foreigns(name, FALSE, TRUE);
 
2118
                err = dict_load_foreigns(name, TRUE);
2131
2119
        }
2132
2120
 
2133
2121
        if (err != DB_SUCCESS) {
2135
2123
 
2136
2124
                trx->error_state = DB_SUCCESS;
2137
2125
 
2138
 
                trx_general_rollback_for_mysql(trx, NULL);
 
2126
                trx_general_rollback_for_mysql(trx, FALSE, NULL);
2139
2127
 
2140
2128
                row_drop_table_for_mysql(name, trx, FALSE);
2141
2129
 
2326
2314
                drop = UT_LIST_GET_NEXT(row_mysql_drop_list, drop);
2327
2315
        }
2328
2316
 
2329
 
        drop = static_cast<row_mysql_drop_t *>(mem_alloc(sizeof(row_mysql_drop_t)));
 
2317
        drop = mem_alloc(sizeof(row_mysql_drop_t));
2330
2318
 
2331
2319
        drop->table_name = mem_strdup(name);
2332
2320
 
2354
2342
        trx_t*          trx)    /*!< in: transaction handle */
2355
2343
{
2356
2344
        dict_foreign_t* foreign;
2357
 
        table_id_t      new_id;
 
2345
        dulint          new_id;
2358
2346
        dict_table_t*   table;
2359
2347
        ibool           success;
2360
2348
        ulint           err;
2468
2456
                goto funct_exit;
2469
2457
        }
2470
2458
 
2471
 
        dict_hdr_get_new_id(&new_id, NULL, NULL);
 
2459
        new_id = dict_hdr_get_new_id(DICT_HDR_TABLE_ID);
2472
2460
 
2473
2461
        /* Remove all locks except the table-level S and X locks. */
2474
2462
        lock_remove_all_on_table(table, FALSE);
2476
2464
        info = pars_info_create();
2477
2465
 
2478
2466
        pars_info_add_str_literal(info, "table_name", name);
2479
 
        pars_info_add_ull_literal(info, "new_id", new_id);
 
2467
        pars_info_add_dulint_literal(info, "new_id", new_id);
2480
2468
 
2481
2469
        err = que_eval_sql(info,
2482
2470
                           "PROCEDURE DISCARD_TABLESPACE_PROC () IS\n"
2502
2490
 
2503
2491
        if (err != DB_SUCCESS) {
2504
2492
                trx->error_state = DB_SUCCESS;
2505
 
                trx_general_rollback_for_mysql(trx, NULL);
 
2493
                trx_general_rollback_for_mysql(trx, FALSE, NULL);
2506
2494
                trx->error_state = DB_SUCCESS;
2507
2495
        } else {
2508
2496
                dict_table_change_id_in_cache(table, new_id);
2511
2499
 
2512
2500
                if (!success) {
2513
2501
                        trx->error_state = DB_SUCCESS;
2514
 
                        trx_general_rollback_for_mysql(trx, NULL);
 
2502
                        trx_general_rollback_for_mysql(trx, FALSE, NULL);
2515
2503
                        trx->error_state = DB_SUCCESS;
2516
2504
 
2517
2505
                        err = DB_ERROR;
2690
2678
        dict_index_t*   sys_index;
2691
2679
        btr_pcur_t      pcur;
2692
2680
        mtr_t           mtr;
2693
 
        table_id_t      new_id;
 
2681
        dulint          new_id;
2694
2682
        ulint           recreate_space = 0;
2695
2683
        pars_info_t*    info = NULL;
2696
2684
 
2830
2818
 
2831
2819
                        dict_index_t*   index;
2832
2820
 
2833
 
                        dict_hdr_get_new_id(NULL, NULL, &space);
2834
 
 
2835
 
                        /* Lock all index trees for this table. We must
2836
 
                        do so after dict_hdr_get_new_id() to preserve
2837
 
                        the latch order */
2838
 
                        dict_table_x_lock_indexes(table);
2839
 
 
2840
 
                        if (space == ULINT_UNDEFINED
2841
 
                            || fil_create_new_single_table_tablespace(
2842
 
                                    space, table->name, FALSE, flags,
 
2821
                        space = 0;
 
2822
 
 
2823
                        if (fil_create_new_single_table_tablespace(
 
2824
                                    &space, table->name, FALSE, flags,
2843
2825
                                    FIL_IBD_FILE_INITIAL_SIZE) != DB_SUCCESS) {
2844
 
                                dict_table_x_unlock_indexes(table);
2845
2826
                                ut_print_timestamp(stderr);
2846
2827
                                fprintf(stderr,
2847
2828
                                        "  InnoDB: TRUNCATE TABLE %s failed to"
2870
2851
                                        FIL_IBD_FILE_INITIAL_SIZE, &mtr);
2871
2852
                        mtr_commit(&mtr);
2872
2853
                }
2873
 
        } else {
2874
 
                /* Lock all index trees for this table, as we will
2875
 
                truncate the table/index and possibly change their metadata.
2876
 
                All DML/DDL are blocked by table level lock, with
2877
 
                a few exceptions such as queries into information schema
2878
 
                about the table, MySQL could try to access index stats
2879
 
                for this kind of query, we need to use index locks to
2880
 
                sync up */
2881
 
                dict_table_x_lock_indexes(table);
2882
2854
        }
2883
2855
 
2884
2856
        /* scan SYS_INDEXES for all indexes of the table */
2887
2859
        tuple = dtuple_create(heap, 1);
2888
2860
        dfield = dtuple_get_nth_field(tuple, 0);
2889
2861
 
2890
 
        buf = static_cast<byte *>(mem_heap_alloc(heap, 8));
 
2862
        buf = mem_heap_alloc(heap, 8);
2891
2863
        mach_write_to_8(buf, table->id);
2892
2864
 
2893
2865
        dfield_set_data(dfield, buf, 8);
2954
2926
 
2955
2927
        mem_heap_free(heap);
2956
2928
 
2957
 
        /* Done with index truncation, release index tree locks,
2958
 
        subsequent work relates to table level metadata change */
2959
 
        dict_table_x_unlock_indexes(table);
2960
 
 
2961
 
        dict_hdr_get_new_id(&new_id, NULL, NULL);
 
2929
        new_id = dict_hdr_get_new_id(DICT_HDR_TABLE_ID);
2962
2930
 
2963
2931
        info = pars_info_create();
2964
2932
 
2965
2933
        pars_info_add_int4_literal(info, "space", (lint) table->space);
2966
 
        pars_info_add_ull_literal(info, "old_id", table->id);
2967
 
        pars_info_add_ull_literal(info, "new_id", new_id);
 
2934
        pars_info_add_dulint_literal(info, "old_id", table->id);
 
2935
        pars_info_add_dulint_literal(info, "new_id", new_id);
2968
2936
 
2969
2937
        err = que_eval_sql(info,
2970
2938
                           "PROCEDURE RENUMBER_TABLESPACE_PROC () IS\n"
2983
2951
 
2984
2952
        if (err != DB_SUCCESS) {
2985
2953
                trx->error_state = DB_SUCCESS;
2986
 
                trx_general_rollback_for_mysql(trx, NULL);
 
2954
                trx_general_rollback_for_mysql(trx, FALSE, NULL);
2987
2955
                trx->error_state = DB_SUCCESS;
2988
2956
                ut_print_timestamp(stderr);
2989
2957
                fputs("  InnoDB: Unable to assign a new identifier to table ",
3004
2972
        dict_table_autoinc_lock(table);
3005
2973
        dict_table_autoinc_initialize(table, 1);
3006
2974
        dict_table_autoinc_unlock(table);
3007
 
        dict_update_statistics(table, FALSE /* update even if stats are
3008
 
                                            initialized */);
 
2975
        dict_update_statistics(table);
3009
2976
 
3010
2977
        trx_commit_for_mysql(trx);
3011
2978
 
3213
3180
 
3214
3181
        if (table->n_foreign_key_checks_running > 0) {
3215
3182
 
3216
 
                const char*     i_table_name = table->name;
 
3183
                const char*     table_name = table->name;
3217
3184
                ibool           added;
3218
3185
 
3219
 
                added = row_add_table_to_background_drop_list(i_table_name);
 
3186
                added = row_add_table_to_background_drop_list(table_name);
3220
3187
 
3221
3188
                if (added) {
3222
3189
                        ut_print_timestamp(stderr);
3223
3190
                        fputs("  InnoDB: You are trying to drop table ",
3224
3191
                              stderr);
3225
 
                        ut_print_name(stderr, trx, TRUE, i_table_name);
 
3192
                        ut_print_name(stderr, trx, TRUE, table_name);
3226
3193
                        fputs("\n"
3227
3194
                              "InnoDB: though there is a"
3228
3195
                              " foreign key check running on it.\n"
3325
3292
                           "END;\n"
3326
3293
                           , FALSE, trx);
3327
3294
 
3328
 
        switch (err) {
3329
 
                ibool           is_temp;
 
3295
        if (err != DB_SUCCESS) {
 
3296
                ut_a(err == DB_OUT_OF_FILE_SPACE);
 
3297
 
 
3298
                err = DB_MUST_GET_MORE_FILE_SPACE;
 
3299
 
 
3300
                row_mysql_handle_errors(&err, trx, NULL, NULL);
 
3301
 
 
3302
                ut_error;
 
3303
        } else {
 
3304
                ibool           is_path;
3330
3305
                const char*     name_or_path;
3331
3306
                mem_heap_t*     heap;
3332
3307
 
3333
 
        case DB_SUCCESS:
3334
 
 
3335
3308
                heap = mem_heap_create(200);
3336
3309
 
3337
3310
                /* Clone the name, in case it has been allocated
3341
3314
                space_id = table->space;
3342
3315
 
3343
3316
                if (table->dir_path_of_temp_table != NULL) {
 
3317
                        is_path = TRUE;
3344
3318
                        name_or_path = mem_heap_strdup(
3345
3319
                                heap, table->dir_path_of_temp_table);
3346
 
                        is_temp = TRUE;
3347
3320
                } else {
 
3321
                        is_path = FALSE;
3348
3322
                        name_or_path = name;
3349
 
                        is_temp = (table->flags >> DICT_TF2_SHIFT)
3350
 
                                & DICT_TF2_TEMPORARY;
3351
3323
                }
3352
3324
 
3353
3325
                dict_table_remove_from_cache(table);
3354
3326
 
3355
 
                if (dict_load_table(name, TRUE) != NULL) {
 
3327
                if (dict_load_table(name) != NULL) {
3356
3328
                        ut_print_timestamp(stderr);
3357
3329
                        fputs("  InnoDB: Error: not able to remove table ",
3358
3330
                              stderr);
3367
3339
                if (err == DB_SUCCESS && space_id > 0) {
3368
3340
                        if (!fil_space_for_table_exists_in_mem(space_id,
3369
3341
                                                               name_or_path,
3370
 
                                                               is_temp, FALSE,
3371
 
                                                               !is_temp)) {
 
3342
                                                               is_path,
 
3343
                                                               FALSE, TRUE)) {
3372
3344
                                err = DB_SUCCESS;
3373
3345
 
3374
3346
                                fprintf(stderr,
3397
3369
                }
3398
3370
 
3399
3371
                mem_heap_free(heap);
3400
 
                break;
3401
 
 
3402
 
        case DB_TOO_MANY_CONCURRENT_TRXS:
3403
 
                /* Cannot even find a free slot for the
3404
 
                the undo log. We can directly exit here
3405
 
                and return the DB_TOO_MANY_CONCURRENT_TRXS
3406
 
                error. */
3407
 
                break;
3408
 
 
3409
 
        case DB_OUT_OF_FILE_SPACE:
3410
 
                err = DB_MUST_GET_MORE_FILE_SPACE;
3411
 
 
3412
 
                row_mysql_handle_errors(&err, trx, NULL, NULL);
3413
 
 
3414
 
                /* Fall through to raise error */
3415
 
 
3416
 
        default:
3417
 
                /* No other possible error returns */
3418
 
                ut_error;
3419
3372
        }
3420
 
 
3421
3373
funct_exit:
3422
3374
 
3423
3375
        if (locked_dictionary) {
3433
3385
        return((int) err);
3434
3386
}
3435
3387
 
3436
 
/*********************************************************************//**
3437
 
Drop all temporary tables during crash recovery. */
3438
 
UNIV_INTERN
3439
 
void
3440
 
row_mysql_drop_temp_tables(void)
3441
 
/*============================*/
3442
 
{
3443
 
        trx_t*          trx;
3444
 
        btr_pcur_t      pcur;
3445
 
        mtr_t           mtr;
3446
 
        mem_heap_t*     heap;
3447
 
 
3448
 
        trx = trx_allocate_for_background();
3449
 
        trx->op_info = "dropping temporary tables";
3450
 
        row_mysql_lock_data_dictionary(trx);
3451
 
 
3452
 
        heap = mem_heap_create(200);
3453
 
 
3454
 
        mtr_start(&mtr);
3455
 
 
3456
 
        btr_pcur_open_at_index_side(
3457
 
                TRUE,
3458
 
                dict_table_get_first_index(dict_sys->sys_tables),
3459
 
                BTR_SEARCH_LEAF, &pcur, TRUE, &mtr);
3460
 
 
3461
 
        for (;;) {
3462
 
                const rec_t*    rec;
3463
 
                const byte*     field;
3464
 
                ulint           len;
3465
 
                const char*     table_name;
3466
 
                dict_table_t*   table;
3467
 
 
3468
 
                btr_pcur_move_to_next_user_rec(&pcur, &mtr);
3469
 
 
3470
 
                if (!btr_pcur_is_on_user_rec(&pcur)) {
3471
 
                        break;
3472
 
                }
3473
 
 
3474
 
                rec = btr_pcur_get_rec(&pcur);
3475
 
                field = rec_get_nth_field_old(rec, 4/*N_COLS*/, &len);
3476
 
                if (len != 4 || !(mach_read_from_4(field) & 0x80000000UL)) {
3477
 
                        continue;
3478
 
                }
3479
 
 
3480
 
                /* Because this is not a ROW_FORMAT=REDUNDANT table,
3481
 
                the is_temp flag is valid.  Examine it. */
3482
 
 
3483
 
                field = rec_get_nth_field_old(rec, 7/*MIX_LEN*/, &len);
3484
 
                if (len != 4
3485
 
                    || !(mach_read_from_4(field) & DICT_TF2_TEMPORARY)) {
3486
 
                        continue;
3487
 
                }
3488
 
 
3489
 
                /* This is a temporary table. */
3490
 
                field = rec_get_nth_field_old(rec, 0/*NAME*/, &len);
3491
 
                if (len == UNIV_SQL_NULL || len == 0) {
3492
 
                        /* Corrupted SYS_TABLES.NAME */
3493
 
                        continue;
3494
 
                }
3495
 
 
3496
 
                table_name = mem_heap_strdupl(heap, (const char*) field, len);
3497
 
 
3498
 
                btr_pcur_store_position(&pcur, &mtr);
3499
 
                btr_pcur_commit_specify_mtr(&pcur, &mtr);
3500
 
 
3501
 
                table = dict_load_table(table_name, TRUE);
3502
 
 
3503
 
                if (table) {
3504
 
                        row_drop_table_for_mysql(table_name, trx, FALSE);
3505
 
                        trx_commit_for_mysql(trx);
3506
 
                }
3507
 
 
3508
 
                mtr_start(&mtr);
3509
 
                btr_pcur_restore_position(BTR_SEARCH_LEAF,
3510
 
                                          &pcur, &mtr);
3511
 
        }
3512
 
 
3513
 
        btr_pcur_close(&pcur);
3514
 
        mtr_commit(&mtr);
3515
 
        mem_heap_free(heap);
3516
 
        row_mysql_unlock_data_dictionary(trx);
3517
 
        trx_free_for_background(trx);
3518
 
}
3519
 
 
3520
3388
/*******************************************************************//**
3521
3389
Drop all foreign keys in a database, see Bug#18942.
3522
3390
Called at the end of row_drop_database_for_mysql().
3780
3648
                      stderr);
3781
3649
 
3782
3650
                goto funct_exit;
 
3651
        } else if (row_mysql_is_system_table(new_name)) {
 
3652
 
 
3653
                fprintf(stderr,
 
3654
                        "InnoDB: Error: trying to create a MySQL"
 
3655
                        " system table %s of type InnoDB.\n"
 
3656
                        "InnoDB: MySQL system tables must be"
 
3657
                        " of the MyISAM type!\n",
 
3658
                        new_name);
 
3659
 
 
3660
                goto funct_exit;
3783
3661
        }
3784
3662
 
3785
3663
        trx->op_info = "renaming table";
3992
3870
                              "InnoDB: succeed.\n", stderr);
3993
3871
                }
3994
3872
                trx->error_state = DB_SUCCESS;
3995
 
                trx_general_rollback_for_mysql(trx, NULL);
 
3873
                trx_general_rollback_for_mysql(trx, FALSE, NULL);
3996
3874
                trx->error_state = DB_SUCCESS;
3997
3875
        } else {
3998
3876
                /* The following call will also rename the .ibd data file if
4001
3879
                if (!dict_table_rename_in_cache(table, new_name,
4002
3880
                                                !new_is_tmp)) {
4003
3881
                        trx->error_state = DB_SUCCESS;
4004
 
                        trx_general_rollback_for_mysql(trx, NULL);
 
3882
                        trx_general_rollback_for_mysql(trx, FALSE, NULL);
4005
3883
                        trx->error_state = DB_SUCCESS;
4006
3884
                        goto funct_exit;
4007
3885
                }
4010
3888
                an ALTER, not in a RENAME. */
4011
3889
 
4012
3890
                err = dict_load_foreigns(
4013
 
                        new_name, FALSE, !old_is_tmp || trx->check_foreigns);
 
3891
                        new_name, !old_is_tmp || trx->check_foreigns);
4014
3892
 
4015
3893
                if (err != DB_SUCCESS) {
4016
3894
                        ut_print_timestamp(stderr);
4041
3919
                        ut_a(dict_table_rename_in_cache(table,
4042
3920
                                                        old_name, FALSE));
4043
3921
                        trx->error_state = DB_SUCCESS;
4044
 
                        trx_general_rollback_for_mysql(trx, NULL);
 
3922
                        trx_general_rollback_for_mysql(trx, FALSE, NULL);
4045
3923
                        trx->error_state = DB_SUCCESS;
4046
3924
                }
4047
3925
        }
4066
3944
constraint is not broken, and calculates the number of index entries
4067
3945
in the read view of the current transaction.
4068
3946
@return TRUE if ok */
4069
 
UNIV_INTERN
 
3947
static
4070
3948
ibool
4071
 
row_check_index_for_mysql(
4072
 
/*======================*/
4073
 
        row_prebuilt_t*         prebuilt,       /*!< in: prebuilt struct
4074
 
                                                in MySQL handle */
4075
 
        const dict_index_t*     index,          /*!< in: index */
4076
 
        ulint*                  n_rows)         /*!< out: number of entries
4077
 
                                                seen in the consistent read */
 
3949
row_scan_and_check_index(
 
3950
/*=====================*/
 
3951
        row_prebuilt_t* prebuilt,       /*!< in: prebuilt struct in MySQL */
 
3952
        dict_index_t*   index,          /*!< in: index */
 
3953
        ulint*          n_rows)         /*!< out: number of entries seen in the
 
3954
                                        current consistent read */
4078
3955
{
4079
3956
        dtuple_t*       prev_entry      = NULL;
4080
3957
        ulint           matched_fields;
4095
3972
 
4096
3973
        *n_rows = 0;
4097
3974
 
4098
 
        buf = static_cast<byte *>(mem_alloc(UNIV_PAGE_SIZE));
 
3975
        if (!row_merge_is_index_usable(prebuilt->trx, index)) {
 
3976
                /* A newly created index may lack some delete-marked
 
3977
                records that may exist in the read view of
 
3978
                prebuilt->trx.  Thus, such indexes must not be
 
3979
                accessed by consistent read. */
 
3980
                return(is_ok);
 
3981
        }
 
3982
 
 
3983
        buf = mem_alloc(UNIV_PAGE_SIZE);
4099
3984
        heap = mem_heap_create(100);
4100
3985
 
 
3986
        /* Make a dummy template in prebuilt, which we will use
 
3987
        in scanning the index entries */
 
3988
 
 
3989
        prebuilt->index = index;
 
3990
        /* row_merge_is_index_usable() was already checked above. */
 
3991
        prebuilt->index_usable = TRUE;
 
3992
        prebuilt->sql_stat_start = TRUE;
 
3993
        prebuilt->template_type = ROW_MYSQL_DUMMY_TEMPLATE;
 
3994
        prebuilt->n_template = 0;
 
3995
        prebuilt->need_to_access_clustered = FALSE;
 
3996
 
 
3997
        dtuple_set_n_fields(prebuilt->search_tuple, 0);
 
3998
 
 
3999
        prebuilt->select_lock_type = LOCK_NONE;
4101
4000
        cnt = 1000;
4102
4001
 
4103
4002
        ret = row_search_for_mysql(buf, PAGE_CUR_G, prebuilt, 0, 0);
4196
4095
                                * sizeof *offsets;
4197
4096
 
4198
4097
                        tmp_heap = mem_heap_create(size);
4199
 
                        offsets = static_cast<ulint *>(mem_heap_dup(tmp_heap, offsets, size));
 
4098
                        offsets = mem_heap_dup(tmp_heap, offsets, size);
4200
4099
                }
4201
4100
 
4202
4101
                mem_heap_empty(heap);
4216
4115
}
4217
4116
 
4218
4117
/*********************************************************************//**
 
4118
Checks a table for corruption.
 
4119
@return DB_ERROR or DB_SUCCESS */
 
4120
UNIV_INTERN
 
4121
ulint
 
4122
row_check_table_for_mysql(
 
4123
/*======================*/
 
4124
        row_prebuilt_t* prebuilt)       /*!< in: prebuilt struct in MySQL
 
4125
                                        handle */
 
4126
{
 
4127
        dict_table_t*   table           = prebuilt->table;
 
4128
        dict_index_t*   index;
 
4129
        ulint           n_rows;
 
4130
        ulint           n_rows_in_table = ULINT_UNDEFINED;
 
4131
        ulint           ret             = DB_SUCCESS;
 
4132
        ulint           old_isolation_level;
 
4133
 
 
4134
        if (table->ibd_file_missing) {
 
4135
                ut_print_timestamp(stderr);
 
4136
                fprintf(stderr, "  InnoDB: Error:\n"
 
4137
                        "InnoDB: MySQL is trying to use a table handle"
 
4138
                        " but the .ibd file for\n"
 
4139
                        "InnoDB: table %s does not exist.\n"
 
4140
                        "InnoDB: Have you deleted the .ibd file"
 
4141
                        " from the database directory under\n"
 
4142
                        "InnoDB: the MySQL datadir, or have you"
 
4143
                        " used DISCARD TABLESPACE?\n"
 
4144
                        "InnoDB: Look from\n"
 
4145
                        "InnoDB: " REFMAN "innodb-troubleshooting.html\n"
 
4146
                        "InnoDB: how you can resolve the problem.\n",
 
4147
                        table->name);
 
4148
                return(DB_ERROR);
 
4149
        }
 
4150
 
 
4151
        prebuilt->trx->op_info = "checking table";
 
4152
 
 
4153
        old_isolation_level = prebuilt->trx->isolation_level;
 
4154
 
 
4155
        /* We must run the index record counts at an isolation level
 
4156
        >= READ COMMITTED, because a dirty read can see a wrong number
 
4157
        of records in some index; to play safe, we use always
 
4158
        REPEATABLE READ here */
 
4159
 
 
4160
        prebuilt->trx->isolation_level = TRX_ISO_REPEATABLE_READ;
 
4161
 
 
4162
        /* Enlarge the fatal lock wait timeout during CHECK TABLE. */
 
4163
        mutex_enter(&kernel_mutex);
 
4164
        srv_fatal_semaphore_wait_threshold += 7200; /* 2 hours */
 
4165
        mutex_exit(&kernel_mutex);
 
4166
 
 
4167
        index = dict_table_get_first_index(table);
 
4168
 
 
4169
        while (index != NULL) {
 
4170
                /* fputs("Validating index ", stderr);
 
4171
                ut_print_name(stderr, trx, FALSE, index->name);
 
4172
                putc('\n', stderr); */
 
4173
 
 
4174
                if (!btr_validate_index(index, prebuilt->trx)) {
 
4175
                        ret = DB_ERROR;
 
4176
                } else {
 
4177
                        if (!row_scan_and_check_index(prebuilt,index, &n_rows)){
 
4178
                                ret = DB_ERROR;
 
4179
                        }
 
4180
 
 
4181
                        if (trx_is_interrupted(prebuilt->trx)) {
 
4182
                                break;
 
4183
                        }
 
4184
 
 
4185
                        /* fprintf(stderr, "%lu entries in index %s\n", n_rows,
 
4186
                        index->name); */
 
4187
 
 
4188
                        if (index == dict_table_get_first_index(table)) {
 
4189
                                n_rows_in_table = n_rows;
 
4190
                        } else if (n_rows != n_rows_in_table) {
 
4191
 
 
4192
                                ret = DB_ERROR;
 
4193
 
 
4194
                                fputs("Error: ", stderr);
 
4195
                                dict_index_name_print(stderr,
 
4196
                                                      prebuilt->trx, index);
 
4197
                                fprintf(stderr,
 
4198
                                        " contains %lu entries,"
 
4199
                                        " should be %lu\n",
 
4200
                                        (ulong) n_rows,
 
4201
                                        (ulong) n_rows_in_table);
 
4202
                        }
 
4203
                }
 
4204
 
 
4205
                index = dict_table_get_next_index(index);
 
4206
        }
 
4207
 
 
4208
        /* Restore the original isolation level */
 
4209
        prebuilt->trx->isolation_level = old_isolation_level;
 
4210
 
 
4211
        /* We validate also the whole adaptive hash index for all tables
 
4212
        at every CHECK TABLE */
 
4213
 
 
4214
        if (!btr_search_validate()) {
 
4215
 
 
4216
                ret = DB_ERROR;
 
4217
        }
 
4218
 
 
4219
        /* Restore the fatal lock wait timeout after CHECK TABLE. */
 
4220
        mutex_enter(&kernel_mutex);
 
4221
        srv_fatal_semaphore_wait_threshold -= 7200; /* 2 hours */
 
4222
        mutex_exit(&kernel_mutex);
 
4223
 
 
4224
        prebuilt->trx->op_info = "";
 
4225
 
 
4226
        return(ret);
 
4227
}
 
4228
 
 
4229
/*********************************************************************//**
4219
4230
Determines if a table is a magic monitor table.
4220
4231
@return TRUE if monitor table */
4221
4232
UNIV_INTERN