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Merge fix for BUG47444 to mysql-5.1-bugteam.

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This commit is contained in:
Sergey Vojtovich 2010-03-16 21:33:56 +04:00
commit ae42e96d28
4 changed files with 43 additions and 10 deletions
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6
include/mysql/plugin.h
View File

@ -396,12 +396,12 @@ struct st_mysql_plugin
int type; /* the plugin type (a MYSQL_XXX_PLUGIN value) */
void *info; /* pointer to type-specific plugin descriptor */
const char *name; /* plugin name */
const char *author; /* plugin author (for SHOW PLUGINS) */
const char *descr; /* general descriptive text (for SHOW PLUGINS ) */
const char *author; /* plugin author (for I_S.PLUGINS) */
const char *descr; /* general descriptive text (for I_S.PLUGINS) */
int license; /* the plugin license (PLUGIN_LICENSE_XXX) */
int (*init)(void *); /* the function to invoke when plugin is loaded */
int (*deinit)(void *);/* the function to invoke when plugin is unloaded */
unsigned int version; /* plugin version (for SHOW PLUGINS) */
unsigned int version; /* plugin version (for I_S.PLUGINS) */
struct st_mysql_show_var *status_vars;
struct st_mysql_sys_var **system_vars;
void * __reserved1; /* reserved for dependency checking */

19
mysql-test/r/myisam.result
View File

@ -2389,4 +2389,23 @@ SELECT * FROM t1, t1 AS a1 WHERE t1.a=1 AND a1.a=1;
a a
1 1
DROP TABLE t1;
#
# BUG#47444 - --myisam_repair_threads>1can result in all index
# cardinalities=1
#
SET myisam_repair_threads=2;
SET myisam_sort_buffer_size=4096;
CREATE TABLE t1(a CHAR(255), KEY(a), KEY(a), KEY(a));
INSERT INTO t1 VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9),(0),(1),(2),(3);
REPAIR TABLE t1;
Table Op Msg_type Msg_text
test.t1 repair status OK
SELECT CARDINALITY FROM INFORMATION_SCHEMA.STATISTICS WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
CARDINALITY
14
14
14
DROP TABLE t1;
SET myisam_sort_buffer_size=@@global.myisam_sort_buffer_size;
SET myisam_repair_threads=@@global.myisam_repair_threads;
End of 5.1 tests

14
mysql-test/t/myisam.test
View File

@ -1631,4 +1631,18 @@ INSERT INTO t1 VALUES('1');
SELECT * FROM t1, t1 AS a1 WHERE t1.a=1 AND a1.a=1;
DROP TABLE t1;
--echo #
--echo # BUG#47444 - --myisam_repair_threads>1can result in all index
--echo # cardinalities=1
--echo #
SET myisam_repair_threads=2;
SET myisam_sort_buffer_size=4096;
CREATE TABLE t1(a CHAR(255), KEY(a), KEY(a), KEY(a));
INSERT INTO t1 VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9),(0),(1),(2),(3);
REPAIR TABLE t1;
SELECT CARDINALITY FROM INFORMATION_SCHEMA.STATISTICS WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DROP TABLE t1;
SET myisam_sort_buffer_size=@@global.myisam_sort_buffer_size;
SET myisam_repair_threads=@@global.myisam_repair_threads;
--echo End of 5.1 tests

14
storage/myisam/sort.c
View File

@ -506,7 +506,7 @@ int thr_write_keys(MI_SORT_PARAM *sort_param)
for (i= 0, sinfo= sort_param ;
i < sort_info->total_keys ;
i++, rec_per_key_part+=sinfo->keyinfo->keysegs, sinfo++)
i++, sinfo++)
{
if (!sinfo->sort_keys)
{
@ -529,11 +529,6 @@ int thr_write_keys(MI_SORT_PARAM *sort_param)
flush_ft_buf(sinfo) || flush_pending_blocks(sinfo))
got_error=1;
}
if (!got_error && param->testflag & T_STATISTICS)
update_key_parts(sinfo->keyinfo, rec_per_key_part, sinfo->unique,
param->stats_method == MI_STATS_METHOD_IGNORE_NULLS?
sinfo->notnull: NULL,
(ulonglong) info->state->records);
}
my_free((uchar*) sinfo->sort_keys,MYF(0));
my_free(mi_get_rec_buff_ptr(info, sinfo->rec_buff),
@ -547,7 +542,7 @@ int thr_write_keys(MI_SORT_PARAM *sort_param)
delete_dynamic(&sinfo->buffpek),
close_cached_file(&sinfo->tempfile),
close_cached_file(&sinfo->tempfile_for_exceptions),
sinfo++)
rec_per_key_part+= sinfo->keyinfo->keysegs, sinfo++)
{
if (got_error)
continue;
@ -639,6 +634,11 @@ int thr_write_keys(MI_SORT_PARAM *sort_param)
got_error=1;
}
}
if (!got_error && param->testflag & T_STATISTICS)
update_key_parts(sinfo->keyinfo, rec_per_key_part, sinfo->unique,
param->stats_method == MI_STATS_METHOD_IGNORE_NULLS ?
sinfo->notnull : NULL,
(ulonglong) info->state->records);
}
my_free((uchar*) mergebuf,MYF(MY_ALLOW_ZERO_PTR));
DBUG_RETURN(got_error);