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Fixed problem with part keys and BDB tables

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This commit is contained in:
monty@hundin.mysql.fi
2001-07-18 11:31:18 +03:00
parent 5014d736e1
commit de7d371900
4 changed files with 32 additions and 6 deletions
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11
Docs/manual.texi
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@ -3145,6 +3145,10 @@ unsubscribe from the @code{myodbc} list, send a message to
@email{myodbc-subscribe@@lists.mysql.com} or
@email{myodbc-unsubscribe@@lists.mysql.com}.
If you can't get an answer for your questions from the mailing list, one
option is to pay for support from @strong{MySQL AB}, which will put you
in direct contact with @strong{MySQL} developers. @xref{Support}.
The following table shows some @strong{MySQL} mailing in other languages than
English. Note that these are not operated by @strong{MySQL AB}, so we can't
guarantee the quality on these.
@ -7584,7 +7588,7 @@ You should also add /etc/my.cnf:
open_files_limit=8192
@end example
The above should allow @strong{MySQL} to create up to 8192 connections + files.
The above should allow @strong{MySQL} to create up to 8192 connections/files.
The @code{STACK_SIZE} constant in LinuxThreads controls the spacing of thread
stacks in the address space. It needs to be large enough so that there will
@ -30742,7 +30746,8 @@ method for changing the limit varies widely from system to system.
@code{table_cache} is related to @code{max_connections}. For example,
for 200 concurrent running connections, you should have a table cache of
at least @code{200 * n}, where @code{n} is the maximum number of tables
in a join.
in a join. You also need to reserve some extra file descriptors for
temporary tables and files.
The cache of open tables can grow to a maximum of @code{table_cache}
(default 64; this can be changed with the @code{-O table_cache=#}
@ -45727,6 +45732,8 @@ Added @code{slave_wait_timeout} for replication.
@item
Fixed problem with @code{UPDATE} and BDB tables.
@item
Fixed hard bug in BDB tables when using key parts.
@item
Fixed problem when using the @code{GRANT FILE ON database.* ...}; Previously
we added the @code{DROP} privilege for the database.
@item

1
bdb/include/db.src
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@ -119,6 +119,7 @@ struct __db_dbt {
u_int32_t dlen; /* RO: get/put record length. */
u_int32_t doff; /* RO: get/put record offset. */
void *app_private; /* Application-private handle. */
#define DB_DBT_ISSET 0x001 /* Lower level calls set value. */
#define DB_DBT_MALLOC 0x002 /* Return in malloc'd memory. */
#define DB_DBT_PARTIAL 0x004 /* Partial put/get. */

11
mysql-test/r/bdb.result
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@ -511,3 +511,14 @@ id id3
100 2
KINMU_DATE
KINMU_DATE
a b
1 1
1 2
a b a b
1 1 1 1
1 1 1 2
1 2 1 1
1 2 1 2
a b
1 1
1 2

15
sql/ha_berkeley.cc
View File

@ -351,7 +351,8 @@ berkeley_cmp_hidden_key(DB* file, const DBT *new_key, const DBT *saved_key)
static int
berkeley_cmp_packed_key(DB *file, const DBT *new_key, const DBT *saved_key)
{
KEY *key= (KEY*) (file->app_private);
KEY *key= (new_key->app_private ? (KEY*) new_key->app_private :
(KEY*) (file->app_private));
char *new_key_ptr= (char*) new_key->data;
char *saved_key_ptr=(char*) saved_key->data;
KEY_PART_INFO *key_part= key->key_part, *end=key_part+key->key_parts;
@ -388,7 +389,8 @@ berkeley_cmp_packed_key(DB *file, const DBT *new_key, const DBT *saved_key)
static int
berkeley_cmp_fix_length_key(DB *file, const DBT *new_key, const DBT *saved_key)
{
KEY *key=(KEY*) (file->app_private);
KEY *key= (new_key->app_private ? (KEY*) new_key->app_private :
(KEY*) (file->app_private));
char *new_key_ptr= (char*) new_key->data;
char *saved_key_ptr=(char*) saved_key->data;
KEY_PART_INFO *key_part= key->key_part, *end=key_part+key->key_parts;
@ -730,9 +732,9 @@ DBT *ha_berkeley::create_key(DBT *key, uint keynr, char *buff,
const byte *record, int key_length)
{
bzero((char*) key,sizeof(*key));
if (hidden_primary_key && keynr == primary_key)
{
/* We don't need to set app_private here */
key->data=current_ident;
key->size=BDB_HIDDEN_PRIMARY_KEY_LENGTH;
return key;
@ -744,6 +746,7 @@ DBT *ha_berkeley::create_key(DBT *key, uint keynr, char *buff,
DBUG_ENTER("create_key");
key->data=buff;
key->app_private= key_info;
for ( ; key_part != end && key_length > 0; key_part++)
{
if (key_part->null_bit)
@ -777,10 +780,11 @@ DBT *ha_berkeley::pack_key(DBT *key, uint keynr, char *buff,
KEY *key_info=table->key_info+keynr;
KEY_PART_INFO *key_part=key_info->key_part;
KEY_PART_INFO *end=key_part+key_info->key_parts;
DBUG_ENTER("pack_key2");
DBUG_ENTER("bdb:pack_key");
bzero((char*) key,sizeof(*key));
key->data=buff;
key->app_private= (void*) key_info;
for (; key_part != end && (int) key_length > 0 ; key_part++)
{
@ -1373,6 +1377,7 @@ int ha_berkeley::read_row(int error, char *buf, uint keynr, DBT *row,
bzero((char*) &key,sizeof(key));
key.data=key_buff;
key.size=row->size;
key.app_private= (void*) (table->key_info+primary_key);
memcpy(key_buff,row->data,row->size);
/* Read the data into current_row */
current_row.flags=DB_DBT_REALLOC;
@ -1537,6 +1542,7 @@ int ha_berkeley::rnd_next(byte *buf)
DBT *ha_berkeley::get_pos(DBT *to, byte *pos)
{
/* We don't need to set app_private here */
bzero((char*) to,sizeof(*to));
to->data=pos;
@ -1950,6 +1956,7 @@ longlong ha_berkeley::get_auto_increment()
table->next_number_key_offset);
/* Store for compare */
memcpy(old_key.data=key_buff2, key_buff, (old_key.size=last_key.size));
old_key.app_private=(void*) key_info;
error=1;
{
/* Modify the compare so that we will find the next key */