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Fix Bug #55277 - Failing assertion: auto_inc > 0

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Handle overflow when reading value from SELECT MAX(C) FROM T;

Call ha_innobase::info() after initializing the autoinc value
in ha_innobase::open().

Fix for both the builtin and plugin.

rb://402
This commit is contained in:
Sunny Bains
2010-08-05 19:24:34 +10:00
parent b37256b1ab
commit 09eb23d50b
4 changed files with 53 additions and 14 deletions
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21
storage/innodb_plugin/handler/ha_innodb.cc
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@ -3361,12 +3361,19 @@ ha_innobase::innobase_initialize_autoinc()
err = row_search_max_autoinc(index, col_name, &read_auto_inc);
switch (err) {
case DB_SUCCESS:
/* At the this stage we do not know the increment
or the offset, so use a default increment of 1. */
auto_inc = read_auto_inc + 1;
break;
case DB_SUCCESS: {
ulonglong col_max_value;
col_max_value = innobase_get_int_col_max_value(field);
/* At the this stage we do not know the increment
nor the offset, so use a default increment of 1. */
auto_inc = innobase_next_autoinc(
read_auto_inc, 1, 1, col_max_value);
break;
}
case DB_RECORD_NOT_FOUND:
ut_print_timestamp(stderr);
fprintf(stderr, " InnoDB: MySQL and InnoDB data "
@ -3661,8 +3668,6 @@ retry:
dict_table_get_format(prebuilt->table));
}
info(HA_STATUS_NO_LOCK | HA_STATUS_VARIABLE | HA_STATUS_CONST);
/* Only if the table has an AUTOINC column. */
if (prebuilt->table != NULL && table->found_next_number_field != NULL) {
dict_table_autoinc_lock(prebuilt->table);
@ -3679,6 +3684,8 @@ retry:
dict_table_autoinc_unlock(prebuilt->table);
}
info(HA_STATUS_NO_LOCK | HA_STATUS_VARIABLE | HA_STATUS_CONST);
DBUG_RETURN(0);
}