rem0cmp.ic File Reference

Comparison services for records. More...

#include <mysql_com.h>
#include "field_types.h"

Functions
static int	cmp_dfield_dfield (const dfield_t *dfield1, const dfield_t *dfield2, bool is_asc)
	Compare two data fields. More...
static int	cmp_multi_value_dfield_dfield (const dfield_t *dfield1, const dfield_t *dfield2)
static int	cmp_rec_rec (const rec_t *rec1, const rec_t *rec2, const ulint *offsets1, const ulint *offsets2, const dict_index_t *index, bool spatial_index_non_leaf, ulint *matched_fields, bool cmp_btree_recs)
static bool	cmp_dfield_dfield_eq_prefix (const dfield_t *dfield1, const dfield_t *dfield2)
	Compare two data fields. More...

Detailed Description

Comparison services for records.

Created 7/1/1994 Heikki Tuuri

Function Documentation

cmp_dfield_dfield()

static int cmp_dfield_dfield ( const dfield_t *  dfield1, const dfield_t *  dfield2, bool  is_asc  )

inlinestatic

Compare two data fields.

Parameters

[in]	dfield1	data field; must have type field set
[in]	dfield2	data field
[in]	is_asc	true=ASC, false=DESC

Returns

the comparison result of dfield1 and dfield2

Return values

0	if dfield1 is equal to dfield2
negative	if dfield1 is less than dfield2
positive	if dfield1 is greater than dfield2

cmp_dfield_dfield_eq_prefix()

static bool cmp_dfield_dfield_eq_prefix ( const dfield_t *  dfield1, const dfield_t *  dfield2  )

inlinestatic

Compare two data fields.

Parameters

[in]	dfield1	data field
[in]	dfield2	data field

Returns

the comparison result of dfield1 and dfield2

Return values

true	if dfield1 is equal to dfield2, or a prefix of dfield1
false	otherwise

cmp_multi_value_dfield_dfield()

static int cmp_multi_value_dfield_dfield ( const dfield_t *  dfield1, const dfield_t *  dfield2  )

inlinestatic

cmp_rec_rec()

static int cmp_rec_rec ( const rec_t *  rec1, const rec_t *  rec2, const ulint *  offsets1, const ulint *  offsets2, const dict_index_t *  index, bool  spatial_index_non_leaf, ulint *  matched_fields, bool  cmp_btree_recs  )

inlinestatic