mirror of
https://github.com/MariaDB/server.git
synced 2025-01-18 21:12:26 +01:00
2662b59306
Docs/manual.texi: Added Innobase documentation configure.in: Incremented version include/my_base.h: Added option for Innobase myisam/mi_check.c: cleanup mysql-test/t/bdb.test: cleanup mysql-test/t/innobase.test: Extended with new tests from bdb.test mysql-test/t/merge.test: Added test of SHOW create mysys/my_init.c: Fix for UNIXWARE 7 scripts/mysql_install_db.sh: Always write how to start mysqld scripts/safe_mysqld.sh: Fixed type sql/ha_innobase.cc: Update to new version sql/ha_innobase.h: Update to new version sql/handler.h: Added 'update_table_comment()' and 'append_create_info()' sql/sql_delete.cc: Fixes for Innobase sql/sql_select.cc: Fixes for Innobase sql/sql_show.cc: Append create information (for MERGE tables) sql/sql_update.cc: Fixes for Innobase
84 lines
2.7 KiB
Text
84 lines
2.7 KiB
Text
/***********************************************************************
|
|
Comparison services for records
|
|
|
|
(c) 1994-1996 Innobase Oy
|
|
|
|
Created 7/1/1994 Heikki Tuuri
|
|
************************************************************************/
|
|
|
|
/*****************************************************************
|
|
This function is used to compare two data fields for which we know the
|
|
data type. */
|
|
|
|
int
|
|
cmp_data_data_slow(
|
|
/*===============*/
|
|
/* out: 1, 0, -1, if data1 is greater, equal,
|
|
less than data2, respectively */
|
|
dtype_t* cur_type,/* in: data type of the fields */
|
|
byte* data1, /* in: data field (== a pointer to a memory
|
|
buffer) */
|
|
ulint len1, /* in: data field length or UNIV_SQL_NULL */
|
|
byte* data2, /* in: data field (== a pointer to a memory
|
|
buffer) */
|
|
ulint len2); /* in: data field length or UNIV_SQL_NULL */
|
|
|
|
|
|
/*****************************************************************
|
|
This function is used to compare two data fields for which we know the
|
|
data type. */
|
|
UNIV_INLINE
|
|
int
|
|
cmp_data_data(
|
|
/*==========*/
|
|
/* out: 1, 0, -1, if data1 is greater, equal,
|
|
less than data2, respectively */
|
|
dtype_t* cur_type,/* in: data type of the fields */
|
|
byte* data1, /* in: data field (== a pointer to a memory
|
|
buffer) */
|
|
ulint len1, /* in: data field length or UNIV_SQL_NULL */
|
|
byte* data2, /* in: data field (== a pointer to a memory
|
|
buffer) */
|
|
ulint len2) /* in: data field length or UNIV_SQL_NULL */
|
|
{
|
|
return(cmp_data_data_slow(cur_type, data1, len1, data2, len2));
|
|
}
|
|
|
|
/*****************************************************************
|
|
This function is used to compare two dfields where at least the first
|
|
has its data type field set. */
|
|
UNIV_INLINE
|
|
int
|
|
cmp_dfield_dfield(
|
|
/*==============*/
|
|
/* out: 1, 0, -1, if dfield1 is greater, equal,
|
|
less than dfield2, respectively */
|
|
dfield_t* dfield1,/* in: data field; must have type field set */
|
|
dfield_t* dfield2)/* in: data field */
|
|
{
|
|
ut_ad(dfield_check_typed(dfield1));
|
|
|
|
return(cmp_data_data(dfield_get_type(dfield1),
|
|
dfield_get_data(dfield1), dfield_get_len(dfield1),
|
|
dfield_get_data(dfield2), dfield_get_len(dfield2)));
|
|
}
|
|
|
|
/*****************************************************************
|
|
This function is used to compare two physical records. Only the common
|
|
first fields are compared. */
|
|
UNIV_INLINE
|
|
int
|
|
cmp_rec_rec(
|
|
/*========*/
|
|
/* out: 1, 0 , -1 if rec1 is greater, equal,
|
|
less, respectively, than rec2; only the common
|
|
first fields are compared */
|
|
rec_t* rec1, /* in: physical record */
|
|
rec_t* rec2, /* in: physical record */
|
|
dict_index_t* index) /* in: data dictionary index */
|
|
{
|
|
ulint match_f = 0;
|
|
ulint match_b = 0;
|
|
|
|
return(cmp_rec_rec_with_match(rec1, rec2, index, &match_f, &match_b));
|
|
}
|