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MDEV-12783 : sql_mode=ORACLE: Functions LENGTH() and LENGTHB()

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This commit is contained in:
halfspawn
2017-05-18 11:43:24 +02:00
parent 5b034f1cf8
commit 87d952746f
5 changed files with 56 additions and 2 deletions
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11
mysql-test/r/func_str.result
View File

@ -4876,5 +4876,16 @@ IF(a<' ',HEX(a),a)
a
DROP TABLE t1;
#
# MDEV-12783 sql_mode=ORACLE: Functions LENGTH() and LENGTHB()
#
SELECT LENGTHB('a'), LENGTHB(_utf8 0xC39F), LENGTHB(123), LENGTH(null);
LENGTHB('a') LENGTHB(_utf8 0xC39F) LENGTHB(123) LENGTH(null)
1 2 3 NULL
EXPLAIN EXTENDED SELECT LENGTH('a'), LENGTHB('a');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select octet_length('a') AS `LENGTH('a')`,octet_length('a') AS `LENGTHB('a')`
#
# End of 10.3 tests
#

21
mysql-test/suite/compat/oracle/r/func_length.result Normal file
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@ -0,0 +1,21 @@
SET sql_mode=ORACLE;
#
# MDEV-12783 sql_mode=ORACLE: Functions LENGTH() and LENGTHB()
#
SELECT LENGTH(null), LENGTH('a'), LENGTH(123);
LENGTH(null) LENGTH('a') LENGTH(123)
NULL 1 3
SELECT LENGTHB(null), LENGTHB('a'), LENGTHB(123);
LENGTHB(null) LENGTHB('a') LENGTHB(123)
NULL 1 3
SELECT LENGTH(_utf8 0xC39F), LENGTH(CHAR(14844588 USING utf8));
LENGTH(_utf8 0xC39F) LENGTH(CHAR(14844588 USING utf8))
1 1
SELECT LENGTHB(_utf8 0xC39F), LENGTHB(CHAR(14844588 USING utf8));
LENGTHB(_utf8 0xC39F) LENGTHB(CHAR(14844588 USING utf8))
2 3
EXPLAIN EXTENDED SELECT LENGTH('a'), LENGTHB('a');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select char_length('a') AS "LENGTH('a')",octet_length('a') AS "LENGTHB('a')"

18
mysql-test/suite/compat/oracle/t/func_length.test Normal file
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@ -0,0 +1,18 @@
SET sql_mode=ORACLE;
--echo #
--echo # MDEV-12783 sql_mode=ORACLE: Functions LENGTH() and LENGTHB()
--echo #
#
# Testing LENGTH / LENGTHB
#
# LENGTH : return the length of char
# LENGTHB : return the length of byte
SELECT LENGTH(null), LENGTH('a'), LENGTH(123);
SELECT LENGTHB(null), LENGTHB('a'), LENGTHB(123);
SELECT LENGTH(_utf8 0xC39F), LENGTH(CHAR(14844588 USING utf8));
SELECT LENGTHB(_utf8 0xC39F), LENGTHB(CHAR(14844588 USING utf8));
EXPLAIN EXTENDED SELECT LENGTH('a'), LENGTHB('a');

5
mysql-test/t/func_str.test
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@ -1883,6 +1883,11 @@ INSERT INTO t1 VALUES (0x09),('a');
SELECT IF(a<' ',HEX(a),a) FROM t1 ORDER BY a;
DROP TABLE t1;
--echo #
--echo # MDEV-12783 sql_mode=ORACLE: Functions LENGTH() and LENGTHB()
--echo #
SELECT LENGTHB('a'), LENGTHB(_utf8 0xC39F), LENGTHB(123), LENGTH(null);
EXPLAIN EXTENDED SELECT LENGTH('a'), LENGTHB('a');
--echo #
--echo # End of 10.3 tests

3
sql/item_create.cc
View File

@ -5684,11 +5684,9 @@ Create_func_length Create_func_length::s_singleton;
Item*
Create_func_length::create_1_arg(THD *thd, Item *arg1)
{
#if 0 // Not yet
if (thd->variables.sql_mode & MODE_ORACLE)
return new (thd->mem_root) Item_func_char_length(thd, arg1);
else
#endif
return new (thd->mem_root) Item_func_octet_length(thd, arg1);
}
@ -6978,6 +6976,7 @@ static Native_func_registry func_array[] =
{ { C_STRING_WITH_LEN("LCASE") }, BUILDER(Create_func_lcase)},
{ { C_STRING_WITH_LEN("LEAST") }, BUILDER(Create_func_least)},
{ { C_STRING_WITH_LEN("LENGTH") }, BUILDER(Create_func_length)},
{ { C_STRING_WITH_LEN("LENGTHB") }, BUILDER(Create_func_octet_length)},
#ifndef DBUG_OFF
{ { C_STRING_WITH_LEN("LIKE_RANGE_MIN") }, BUILDER(Create_func_like_range_min)},
{ { C_STRING_WITH_LEN("LIKE_RANGE_MAX") }, BUILDER(Create_func_like_range_max)},