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authorunknown <monty@donna.mysql.com>2001-02-17 14:19:19 +0200
committerunknown <monty@donna.mysql.com>2001-02-17 14:19:19 +0200
commit2662b59306ef0cd495fa6e2edf7129e58a11393a (patch)
treebfe39951a73e906579ab819bf5198ad8f3a64a36 /innobase/include/rem0cmp.ic
parent66de55a56bdcf2f7a9c0c4f8e19b3e761475e202 (diff)
downloadmariadb-git-2662b59306ef0cd495fa6e2edf7129e58a11393a.tar.gz
Added Innobase to source distribution
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
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+/***********************************************************************
+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));
+}