summaryrefslogtreecommitdiff
path: root/sql/item_timefunc.cc
diff options
context:
space:
mode:
authorunknown <monty@mysql.com>2003-12-17 17:35:34 +0200
committerunknown <monty@mysql.com>2003-12-17 17:35:34 +0200
commit0fb88806e44f48aba363bfda5ebedaaa3b05b975 (patch)
tree93924b5aab311e02a0f0931cf91e67cdfad04bdf /sql/item_timefunc.cc
parent029e30b4aa357708bdbf924cfd78069fb19382bb (diff)
parent4bdfe0fb0107f2fb3e9cfb1c8a417e1028c67dcc (diff)
downloadmariadb-git-0fb88806e44f48aba363bfda5ebedaaa3b05b975.tar.gz
Merge with 4.0.17
BitKeeper/etc/logging_ok: auto-union Build-tools/Do-compile: Auto merged acinclude.m4: Auto merged configure.in: Auto merged dbug/dbug.c: Auto merged include/config-win.h: Auto merged include/my_base.h: Auto merged include/my_global.h: Auto merged include/my_pthread.h: Auto merged include/my_sys.h: Auto merged include/mysql.h: Auto merged include/mysql_com.h: Auto merged innobase/lock/lock0lock.c: Auto merged innobase/row/row0ins.c: Auto merged innobase/row/row0sel.c: Auto merged innobase/row/row0umod.c: Auto merged innobase/row/row0upd.c: Auto merged myisam/ft_boolean_search.c: Auto merged myisam/mi_check.c: Auto merged myisam/mi_dbug.c: Auto merged myisam/mi_open.c: Auto merged mysql-test/r/auto_increment.result: Auto merged mysql-test/r/bdb.result: Auto merged mysql-test/r/func_op.result: Auto merged Build-tools/Bootstrap: Merge with 4.0 client/mysql.cc: Merge with 4.0 client/mysqldump.c: Merge with 4.0 client/mysqltest.c: Use local version innobase/btr/btr0cur.c: Merge with 4.0 (Heikki should check if we should remove btr_cur_update_sec_rec_in_place() libmysql/libmysql.c: Merge with 4.0 libmysqld/lib_sql.cc: Merge with 4.0 myisam/mi_key.c: Merge with 4.0 myisam/mi_search.c: Merge with 4.0 mysql-test/r/binary.result: Merge with 4.0 mysql-test/r/func_group.result: Merge with 4.0 mysql-test/r/func_str.result: Merge with 4.0 mysql-test/r/func_time.result: Merge with 4.0 mysql-test/r/group_by.result: Merge with 4.0 mysql-test/r/handler.result: Merge with 4.0 mysql-test/r/innodb.result: Merge with 4.0 mysql-test/r/insert.result: Merge with 4.0 mysql-test/r/join_outer.result: Merge with 4.0 mysql-test/r/loaddata.result: Merge with 4.0 mysql-test/r/lowercase_table.result: Merge with 4.0 mysql-test/r/multi_update.result: Merge with 4.0 mysql-test/r/mysqldump.result: Merge with 4.0 mysql-test/r/query_cache.result: Merge with 4.0 mysql-test/r/rpl_max_relay_size.result: Merge with 4.0 mysql-test/r/rpl_rotate_logs.result: Merge with 4.0 mysql-test/r/rpl_trunc_binlog.result: Merge with 4.0 mysql-test/r/select_found.result: Merge with 4.0 mysql-test/r/symlink.result: Merge with 4.0 mysql-test/r/truncate.result: Merge with 4.0 mysql-test/r/type_blob.result: Merge with 4.0 mysql-test/r/type_datetime.result: Merge with 4.0 mysql-test/r/type_decimal.result: Merge with 4.0 mysql-test/r/type_enum.result: Merge with 4.0 mysql-test/r/type_timestamp.result: Merge with 4.0 mysql-test/r/union.result: Merge with 4.0 mysql-test/t/auto_increment.test: Merge with 4.0 mysql-test/t/bdb.test: Merge with 4.0 mysql-test/t/func_group.test: Merge with 4.0 mysql-test/t/func_op.test: Merge with 4.0 mysql-test/t/func_str.test: Merge with 4.0 mysql-test/t/func_time.test: Merge with 4.0 mysql-test/t/group_by.test: Merge with 4.0 mysql-test/t/handler.test: Merge with 4.0 mysql-test/t/innodb.test: Merge with 4.0 mysql-test/t/insert.test: Merge with 4.0 mysql-test/t/join_outer.test: Merge with 4.0 mysql-test/t/limit.test: Merge with 4.0 mysql-test/t/loaddata.test: Merge with 4.0 mysql-test/t/lowercase_table.test: Merge with 4.0 mysql-test/t/multi_update.test: Merge with 4.0 mysql-test/t/mysqldump.test: Merge with 4.0 mysql-test/t/query_cache.test: Merge with 4.0 mysql-test/t/rpl_log_pos.test: Merge with 4.0 mysql-test/t/rpl_max_relay_size.test: Merge with 4.0 mysql-test/t/rpl_rotate_logs.test: Merge with 4.0 mysql-test/t/rpl_trunc_binlog.test: Merge with 4.0 mysql-test/t/select_found.test: Merge with 4.0 mysql-test/t/symlink.test: Merge with 4.0 mysql-test/t/truncate.test: Merge with 4.0 mysql-test/t/type_blob.test: Merge with 4.0 mysql-test/t/type_datetime.test: Merge with 4.0 mysql-test/t/type_decimal.test: Merge with 4.0 mysql-test/t/type_enum.test: Merge with 4.0 mysql-test/t/type_timestamp.test: Merge with 4.0 mysql-test/t/union.test: Merge with 4.0 mysys/charset.c: Merge with 4.0 mysys/my_init.c: Merge with 4.0 mysys/my_symlink.c: Merge with 4.0 mysys/my_thr_init.c: Merge with 4.0 regex/reginit.c: Merge with 4.0 sql/field.cc: Change fix_datetime() to print errors sql/field.h: Merge with 4.0 sql/ha_innodb.cc: Merge with 4.0 sql/item.cc: Merge with 4.0 sql/item.h: Merge with 4.0 sql/item_cmpfunc.cc: Merge with 4.0 sql/item_func.cc: Merge with 4.0 sql/item_func.h: Merge with 4.0 sql/item_strfunc.cc: Merge with 4.0 sql/item_strfunc.h: Merge with 4.0 sql/item_sum.cc: Merge with 4.0 sql/item_sum.h: Merge with 4.0 sql/item_timefunc.cc: Merge with 4.0 sql/lex.h: Merge with 4.0 sql/log.cc: Merge with 4.0 sql/log_event.cc: Merge with 4.0 sql/log_event.h: Merge with 4.0 sql/mysql_priv.h: Merge with 4.0 sql/mysqld.cc: Merge with 4.0 sql/nt_servc.cc: Merge with 4.0 sql/opt_range.cc: Merge with 4.0 sql/records.cc: Merge with 4.0 sql/repl_failsafe.cc: Merge with 4.0 sql/slave.cc: Merge with 4.0 sql/sql_acl.cc: Merge with 4.0 sql/sql_analyse.cc: Merge with 4.0 sql/sql_base.cc: Merge with 4.0 sql/sql_cache.cc: Merge with 4.0 sql/sql_class.h: Merge with 4.0 sql/sql_db.cc: Merge with 4.0 sql/sql_delete.cc: Merge with 4.0 sql/sql_insert.cc: Merge with 4.0 sql/sql_load.cc: Merge with 4.0 sql/sql_parse.cc: Merge with 4.0 sql/sql_rename.cc: Merge with 4.0 sql/sql_select.cc: Merge with 4.0 sql/sql_show.cc: Merge with 4.0 sql/sql_table.cc: Merge with 4.0 sql/sql_update.cc: Merge with 4.0 sql/sql_yacc.yy: Merge with 4.0 sql/table.cc: Merge with 4.0 sql/table.h: Merge with 4.0 sql/time.cc: Merge with 4.0 sql/uniques.cc: Merge with 4.0 strings/ctype-tis620.c: Merge with 4.0 strings/strto.c: Merge with 4.0 support-files/mysql.server.sh: Merge with 4.0 support-files/mysql.spec.sh: Merge with 4.0
Diffstat (limited to 'sql/item_timefunc.cc')
-rw-r--r--sql/item_timefunc.cc73
1 files changed, 55 insertions, 18 deletions
diff --git a/sql/item_timefunc.cc b/sql/item_timefunc.cc
index a5372a4ae60..9799c5814c4 100644
--- a/sql/item_timefunc.cc
+++ b/sql/item_timefunc.cc
@@ -526,8 +526,11 @@ bool make_date_time(DATE_TIME_FORMAT *format, TIME *l_time,
uint year;
if (type == TIMESTAMP_TIME)
return 1;
- length= int10_to_str(calc_week(l_time, 0, (*ptr) == 'U', &year),
- intbuff, 10) - intbuff;
+ length= int10_to_str(calc_week(l_time,
+ (*ptr) == 'U' ?
+ WEEK_FIRST_WEEKDAY : WEEK_MONDAY_FIRST,
+ &year),
+ intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
}
break;
@@ -537,8 +540,12 @@ bool make_date_time(DATE_TIME_FORMAT *format, TIME *l_time,
uint year;
if (type == TIMESTAMP_TIME)
return 1;
- length= int10_to_str(calc_week(l_time, 1, (*ptr) == 'V', &year),
- intbuff, 10) - intbuff;
+ length= int10_to_str(calc_week(l_time,
+ ((*ptr) == 'V' ?
+ (WEEK_YEAR | WEEK_FIRST_WEEKDAY) :
+ (WEEK_YEAR | WEEK_MONDAY_FIRST)),
+ &year),
+ intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 2, '0');
}
break;
@@ -548,7 +555,11 @@ bool make_date_time(DATE_TIME_FORMAT *format, TIME *l_time,
uint year;
if (type == TIMESTAMP_TIME)
return 1;
- (void) calc_week(l_time, 1, (*ptr) == 'X', &year);
+ (void) calc_week(l_time,
+ ((*ptr) == 'X' ?
+ WEEK_YEAR | WEEK_FIRST_WEEKDAY :
+ WEEK_YEAR | WEEK_MONDAY_FIRST),
+ &year);
length= int10_to_str(year, intbuff, 10) - intbuff;
str->append_with_prefill(intbuff, length, 4, '0');
}
@@ -718,27 +729,51 @@ longlong Item_func_second::val_int()
}
-/*
- Returns the week of year.
+uint week_mode(uint mode)
+{
+ uint week_format= (mode & 7);
+ if (!(week_format & WEEK_MONDAY_FIRST))
+ week_format^= WEEK_FIRST_WEEKDAY;
+ return week_format;
+}
- The bits in week_format has the following meaning:
- 0 If not set: USA format: Sunday is first day of week
- If set: ISO format: Monday is first day of week
- 1 If not set: Week is in range 0-53
- If set Week is in range 1-53.
+/*
+ The bits in week_format(for calc_week() function) has the following meaning:
+ WEEK_MONDAY_FIRST (0) If not set Sunday is first day of week
+ If set Monday is first day of week
+ WEEK_YEAR (1) If not set Week is in range 0-53
+
+ Week 0 is returned for the the last week of the previous year (for
+ a date at start of january) In this case one can get 53 for the
+ first week of next year. This flag ensures that the week is
+ relevant for the given year. Note that this flag is only
+ releveant if WEEK_JANUARY is not set.
+
+ If set Week is in range 1-53.
+
+ In this case one may get week 53 for a date in January (when
+ the week is that last week of previous year) and week 1 for a
+ date in December.
+
+ WEEK_FIRST_WEEKDAY (2) If not set Weeks are numbered according
+ to ISO 8601:1988
+ If set The week that contains the first
+ 'first-day-of-week' is week 1.
+
+ ISO 8601:1988 means that if the week containing January 1 has
+ four or more days in the new year, then it is week 1;
+ Otherwise it is the last week of the previous year, and the
+ next week is week 1.
*/
longlong Item_func_week::val_int()
{
uint year;
- uint week_format;
TIME ltime;
if (get_arg0_date(&ltime,0))
return 0;
- week_format= (uint) args[1]->val_int();
- return (longlong) calc_week(&ltime,
- (week_format & 2) != 0,
- (week_format & 1) == 0,
+ return (longlong) calc_week(&ltime,
+ week_mode((uint) args[1]->val_int()),
&year);
}
@@ -749,7 +784,9 @@ longlong Item_func_yearweek::val_int()
TIME ltime;
if (get_arg0_date(&ltime,0))
return 0;
- week=calc_week(&ltime, 1, (args[1]->val_int() & 1) == 0, &year);
+ week= calc_week(&ltime,
+ (week_mode((uint) args[1]->val_int()) | WEEK_YEAR),
+ &year);
return week+year*100;
}