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Kirill Smelkov
mariadb
Commits
6e5f578a
Commit
6e5f578a
authored
Jun 14, 2006
by
sergefp@mysql.com
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Better comments in KEY_PART_INFO struct
parent
d4942a26
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sql/structs.h
sql/structs.h
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sql/structs.h
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6e5f578a
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@@ -70,7 +70,13 @@ typedef struct st_key_part_info { /* Info about a key part */
Field
*
field
;
uint
offset
;
/* offset in record (from 0) */
uint
null_offset
;
/* Offset to null_bit in record */
uint16
length
;
/* Length of key_part */
uint16
length
;
/* Length of keypart value in bytes */
/*
Number of bytes required to store the keypart value. This may be
different from the "length" field as it also counts
- possible NULL-flag byte (see HA_KEY_NULL_LENGTH)
- possible HA_KEY_BLOB_LENGTH bytes needed to store actual value length.
*/
uint16
store_length
;
uint16
key_type
;
uint16
fieldnr
;
/* Fieldnum in UNIREG */
...
...
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