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MDEV-9220 Split filesort.cc:make_sortkey() and filesort.cc::sortlength() into virtual methods in Type_handler

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This commit is contained in:
Alexander Barkov
2016-01-12 17:03:29 +04:00
parent 454589b67f
commit 5b9ee3f2ae
7 changed files with 312 additions and 209 deletions
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15
sql/sql_class.h
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@@ -4883,16 +4883,19 @@ public:
/* Structs used when sorting */
struct SORT_FIELD_ATTR
{
uint length; /* Length of sort field */
uint suffix_length; /* Length suffix (0-4) */
};
typedef struct st_sort_field {
struct SORT_FIELD: public SORT_FIELD_ATTR
{
Field *field; /* Field to sort */
Item *item; /* Item if not sorting fields */
uint length; /* Length of sort field */
uint suffix_length; /* Length suffix (0-4) */
Item_result result_type; /* Type of item */
bool reverse; /* if descending sort */
bool need_strxnfrm; /* If we have to use strxnfrm() */
} SORT_FIELD;
};
typedef struct st_sort_buffer {