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| author | Marko Mäkelä <marko.makela@mariadb.com> | 2016-12-16 16:36:54 +0200 |
|---|---|---|
| committer | Marko Mäkelä <marko.makela@mariadb.com> | 2016-12-19 16:24:10 +0200 |
| commit | 8375a2c1cec3c386f6db797d75f64b8f03c83b37 (patch) | |
| tree | 3ccb76d486f6949dd9120d85884366da7f0feff6 /storage/innobase/include/srv0start.h | |
| parent | c35b8c46b404d035e54a23d667da5dff6502fc2e (diff) | |
| download | mariadb-git-8375a2c1cec3c386f6db797d75f64b8f03c83b37.tar.gz | |
MDEV-11585 Hard-code the shared InnoDB temporary tablespace ID at -1
MySQL 5.7 supports only one shared temporary tablespace.
MariaDB 10.2 does not support any other shared InnoDB tablespaces than
the two predefined tablespaces: the persistent InnoDB system tablespace
(default file name ibdata1) and the temporary tablespace
(default file name ibtmp1).
InnoDB is unnecessarily allocating a tablespace ID for the predefined
temporary tablespace on every startup, and it is in several places
testing whether a tablespace ID matches this dynamically generated ID.
We should use a compile-time constant to reduce code size and to avoid
unnecessary updates to the DICT_HDR page at every startup.
Using a hard-coded tablespace ID will should make it easier to remove the
TEMPORARY flag from FSP_SPACE_FLAGS in MDEV-11202.
Diffstat (limited to 'storage/innobase/include/srv0start.h')
| -rw-r--r-- | storage/innobase/include/srv0start.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/storage/innobase/include/srv0start.h b/storage/innobase/include/srv0start.h index 82b5446c62a..708a90247e3 100644 --- a/storage/innobase/include/srv0start.h +++ b/storage/innobase/include/srv0start.h @@ -46,9 +46,6 @@ struct dict_table_t; } while (0) #endif /* DBUG_OFF */ -/** Log 'spaces' have id's >= this */ -#define SRV_LOG_SPACE_FIRST_ID 0xFFFFFFF0UL - /** If buffer pool is less than the size, only one buffer pool instance is used. */ #define BUF_POOL_SIZE_THRESHOLD (1024 * 1024 * 1024) |