MySQL 8.4.3
Source Code Documentation
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Record manager global types. More...
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Typedefs | |
typedef byte | rec_t |
typedef enum rec_format_enum | rec_format_t |
Enumerations | |
enum | rec_format_enum { REC_FORMAT_REDUNDANT = 0 , REC_FORMAT_COMPACT = 1 , REC_FORMAT_COMPRESSED = 2 , REC_FORMAT_DYNAMIC = 3 } |
Innodb row types are a subset of the MySQL global enum row_type. More... | |
Variables | |
constexpr uint32_t | REC_MAX_N_FIELDS = 1024 - 1 |
constexpr uint32_t | REC_MAX_HEAP_NO = 2 * 8192 - 1 |
constexpr uint32_t | REC_MAX_N_OWNED = 16 - 1 |
constexpr uint32_t | REC_MAX_N_USER_FIELDS |
constexpr uint32_t | REC_ANTELOPE_MAX_INDEX_COL_LEN = 768 |
constexpr uint32_t | REC_VERSION_56_MAX_INDEX_COL_LEN = 3072 |
Maximum indexed field length for tables that have atomic BLOBs. More... | |
Record manager global types.
Created 5/30/1994 Heikki Tuuri
typedef enum rec_format_enum rec_format_t |
enum rec_format_enum |
Innodb row types are a subset of the MySQL global enum row_type.
They are made into their own enum so that switch statements can account for each of them.
Enumerator | |
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REC_FORMAT_REDUNDANT | REDUNDANT row format. |
REC_FORMAT_COMPACT | COMPACT row format. |
REC_FORMAT_COMPRESSED | COMPRESSED row format. |
REC_FORMAT_DYNAMIC | DYNAMIC row format. |
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Maximum indexed field length for tables that have atomic BLOBs.
This (3072) is the maximum index row length allowed, so we cannot create index prefix column longer than that.