Skip to content

M
MariaDB
Commit 1a011e5b authored by Shivashankar Nagaraj's avatar Shivashankar Nagaraj Committed by Sergey Vojtovich
Browse files
Options

BUG#26495791: CONTRIBUTION: EXPAND TEST SUITE TO INCLUDE CRC32 TESTS 

From mysql-server:
09fdfad50764ff6809e7dd5300e9ce1ab727b62a
e90ae1707e0ca46abc775d1680d1856c4be38b66

described in http://github.com/mysql/mysql-server/pull/157

Apart from external contribution I have added few more additional testcases
for CRC32() function, which are given below.

New Testcases added:
  ->Verify the crc value of various numeric and string data types(int,
      double, blob, text, json, enum, set)
  ->Verify the crc value when expressions having comparison_operators
      and logical_operators
  ->Verify the crc value for the expression having string_functions,
      arithmetic_functions, json_functions
  ->Verify the crc value for the expression having Geometry functions
      like POINT, LINESTRING, MULTILINESTRING, POLYGON, MULTIPOLYGON
  ->Verify the crc value generated from stored procedures, functions,
      triggers, prepare statement, views.

Fix:
Patch based on contribution by Daniel Black (Github user: grooverdan)

Reviewed-by: Anitha Gopi anitha.gopi@oracle.com
Reviewed-by: Srikanth B R srikanth.b.r@oracle.com

RB: 17294
parent 5bba69f8
Hide whitespace changes
Inline Side-by-side
Showing with 627 additions and 0 deletions
mysql-test/main/func_math.result
View file @ 1a011e5b
......@@ -900,3 +900,392 @@ a HEX(a)
DROP TABLE t2;
DROP TABLE t1;
SET sql_mode=DEFAULT;
#
# Bug#26495791 - EXPAND TEST SUITE TO INCLUDE CRC32 TESTS
#
SELECT CRC32(NULL), CRC32(''), CRC32('MySQL'), CRC32('mysql');
CRC32(NULL) CRC32('') CRC32('MySQL') CRC32('mysql')
NULL 0 3259397556 2501908538
SELECT CRC32('01234567'), CRC32('012345678');
CRC32('01234567') CRC32('012345678')
763378421 939184570
SELECT CRC32('~!@$%^*'), CRC32('-0.0001');
CRC32('~!@$%^*') CRC32('-0.0001')
1533935548 324352530
SELECT CRC32(99999999999999999999999999999999);
CRC32(99999999999999999999999999999999)
3035957051
SELECT CRC32(-99999999999999999999999999999999);
CRC32(-99999999999999999999999999999999)
1052326872
DROP TABLE IF EXISTS t;
Warnings:
Note 1051 Unknown table 'test.t'
CREATE TABLE t(a INT, b VARCHAR(2));
INSERT INTO t VALUES (1,'a'), (2,'qw'), (1,'t'), (3,'t');
SELECT crc32(SUM(a)) FROM t;
crc32(SUM(a))
1790921346
SELECT crc32(AVG(a)) FROM t GROUP BY b;
crc32(AVG(a))
768278432
2875100430
2875100430
SELECT crc32(MAX(b)) FROM t GROUP BY a;
crc32(MAX(b))
2238339752
3114057431
2238339752
SELECT a, b, crc32(a) FROM t GROUP BY a,b HAVING crc32(MAX(a))=450215437;
a b crc32(a)
2 qw 450215437
SELECT a,b,concat(a,b),crc32(concat(a,b)) FROM t ORDER BY crc32(concat(a,b));
a b concat(a,b) crc32(concat(a,b))
2 qw 2qw 552289476
1 a 1a 3174122627
1 t 1t 3505168488
3 t 3t 3805987562
DROP TABLE t;
SELECT CRC32(4+2);
CRC32(4+2)
498629140
SELECT CRC32(4/2);
CRC32(4/2)
2875100430
SELECT CRC32(4-2);
CRC32(4-2)
450215437
SELECT CRC32(4*2);
CRC32(4*2)
4194326291
SELECT CRC32(ABS(-6));
CRC32(ABS(-6))
498629140
SELECT CRC32(CEILING(1.23));
CRC32(CEILING(1.23))
450215437
SELECT CRC32(FLOOR(1.23));
CRC32(FLOOR(1.23))
2212294583
SELECT CRC32(LOG(10,100));
CRC32(LOG(10,100))
450215437
SELECT CRC32(PI());
CRC32(PI())
2969982827
SELECT CRC32(POWER(2,2));
CRC32(POWER(2,2))
4088798008
SELECT CRC32(ROUND(1.58));
CRC32(ROUND(1.58))
450215437
SELECT CRC32(SIGN(0));
CRC32(SIGN(0))
4108050209
SELECT CRC32(SQRT(4));
CRC32(SQRT(4))
450215437
SELECT CRC32(2 > 4);
CRC32(2 > 4)
4108050209
SELECT CRC32(2 < 4);
CRC32(2 < 4)
2212294583
SELECT CRC32(2 >= 4);
CRC32(2 >= 4)
4108050209
SELECT CRC32(2 <= 4);
CRC32(2 <= 4)
2212294583
SELECT CRC32(2 != 4);
CRC32(2 != 4)
2212294583
SELECT CRC32(NOT 1);
CRC32(NOT 1)
4108050209
SELECT CRC32(1 AND 1);
CRC32(1 AND 1)
2212294583
SELECT CRC32(1 OR 1);
CRC32(1 OR 1)
2212294583
SELECT CRC32(1 XOR 1);
CRC32(1 XOR 1)
4108050209
SELECT CRC32(ASCII('2'));
CRC32(ASCII('2'))
3308380389
SELECT CRC32(BIT_LENGTH('text'));
CRC32(BIT_LENGTH('text'))
2103780943
SELECT CRC32(CHAR('77','121','83','81','76'));
CRC32(CHAR('77','121','83','81','76'))
3259397556
SELECT CRC32(CONCAT('good','year'));
CRC32(CONCAT('good','year'))
3441724142
SELECT CRC32(INSERT('foodyear', 1, 4, 'good'));
CRC32(INSERT('foodyear', 1, 4, 'good'))
3441724142
SELECT CRC32(LEFT('goodyear', 4));
CRC32(LEFT('goodyear', 4))
1820610194
SELECT CRC32(LENGTH('text'));
CRC32(LENGTH('text'))
4088798008
SELECT CRC32(LOWER('GOODYEAR'));
CRC32(LOWER('GOODYEAR'))
3441724142
SELECT CRC32(UPPER('goodyear'));
CRC32(UPPER('goodyear'))
186062498
SELECT CRC32(LTRIM(' goodyear'));
CRC32(LTRIM(' goodyear'))
3441724142
SELECT CRC32(RTRIM('goodyear '));
CRC32(RTRIM('goodyear '))
3441724142
SELECT CRC32(REPLACE('godyear','o','oo'));
CRC32(REPLACE('godyear','o','oo'))
3441724142
SELECT CRC32(REVERSE('goodyear'));
CRC32(REVERSE('goodyear'))
3423698264
SELECT CRC32(true);
CRC32(true)
2212294583
SELECT CRC32(false);
CRC32(false)
4108050209
DROP TABLE IF EXISTS t1;
Warnings:
Note 1051 Unknown table 'test.t1'
CREATE TABLE t1 (c1 BIT(5),
c2 TINYINT,
c3 MEDIUMINT,
c4 INTEGER,
c5 BIGINT,
c6 DECIMAL(7,5),
c7 FLOAT(7,5),
c8 DOUBLE(7,5));
INSERT INTO t1 VALUES (B'10101', 127, 8388607, 2147483647,
9223372036854775807, 10.5, 11.5, 12.5);
SELECT CRC32(c1) FROM t1;
CRC32(c1)
3219065702
SELECT CRC32(c2) FROM t1;
CRC32(c2)
2401609675
SELECT CRC32(c3) FROM t1;
CRC32(c3)
1742563487
SELECT CRC32(c4) FROM t1;
CRC32(c4)
365954768
SELECT CRC32(c5) FROM t1;
CRC32(c5)
1122634462
SELECT CRC32(c6) FROM t1;
CRC32(c6)
4255015174
SELECT CRC32(c7) FROM t1;
CRC32(c7)
1542023858
SELECT CRC32(c8) FROM t1;
CRC32(c8)
1778479151
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (c1 DATE,
c2 DATETIME,
c3 TIMESTAMP,
c4 TIME,
c5 YEAR);
INSERT INTO t1 VALUES ('2007-01-01', '2007-01-01 12:00:01',
'2007-01-01 00:00:01.000000',
'12:00:01.000000', '2007');
SELECT CRC32(c1) FROM t1;
CRC32(c1)
2772295888
SELECT CRC32(c2) FROM t1;
CRC32(c2)
1449026401
SELECT CRC32(c3) FROM t1;
CRC32(c3)
225145558
SELECT CRC32(c4) FROM t1;
CRC32(c4)
1077283474
SELECT CRC32(c5) FROM t1;
CRC32(c5)
955685210
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (c1 CHAR,
c2 VARCHAR(10),
c3 BINARY(1),
c4 VARBINARY(10),
c5 TINYBLOB,
c6 TINYTEXT,
c7 BLOB,
c8 TEXT,
c9 MEDIUMBLOB,
c10 MEDIUMTEXT,
c11 LONGBLOB,
c12 LONGTEXT);
INSERT INTO t1 VALUES ('a', 'a', 0x61, 0x61, 'a', 'a',
'a', 'a', 'a', 'a', 'a', 'a');
SELECT CRC32(c1) FROM t1;
CRC32(c1)
3904355907
SELECT CRC32(c2) FROM t1;
CRC32(c2)
3904355907
SELECT CRC32(c3) FROM t1;
CRC32(c3)
3904355907
SELECT CRC32(c4) FROM t1;
CRC32(c4)
3904355907
SELECT CRC32(c5) FROM t1;
CRC32(c5)
3904355907
SELECT CRC32(c6) FROM t1;
CRC32(c6)
3904355907
SELECT CRC32(c7) FROM t1;
CRC32(c7)
3904355907
SELECT CRC32(c8) FROM t1;
CRC32(c8)
3904355907
SELECT CRC32(c9) FROM t1;
CRC32(c9)
3904355907
SELECT CRC32(c10) FROM t1;
CRC32(c10)
3904355907
SELECT CRC32(c11) FROM t1;
CRC32(c11)
3904355907
SELECT CRC32(c12) FROM t1;
CRC32(c12)
3904355907
SELECT CRC32(ST_GeomFromText('POINT(1 1)'));
CRC32(ST_GeomFromText('POINT(1 1)'))
1349318989
CREATE TABLE geom_data(id INT,
pt POINT NOT NULL,
lnstr LINESTRING NOT NULL,
mlnstr MULTILINESTRING NOT NULL,
poly POLYGON NOT NULL,
mpoly MULTIPOLYGON NOT NULL);
INSERT INTO geom_data VALUES (10,
ST_GEOMFROMTEXT('POINT(10 20)'),
ST_GEOMFROMTEXT('LINESTRING(0 0,5 5,6 6)'),
ST_GEOMFROMTEXT('MULTILINESTRING((0 0,2 3,4 5),(6 6,8 8,9 9,10 10))'),
ST_GEOMFROMTEXT('POLYGON((0 0,6 7,8 8,3 9,0 0),(3 6,4 6,4 7,3 6))'),
ST_GEOMFROMTEXT('MULTIPOLYGON(((0 0,0 5,5 5,5 0,0 0)),
((2 2,4 5,6 2,2 2)))'));
SELECT CRC32(ST_X(pt)) FROM geom_data;
CRC32(ST_X(pt))
2707236321
SELECT CRC32(ST_NumPoints((lnstr))) FROM geom_data;
CRC32(ST_NumPoints((lnstr)))
1842515611
SELECT CRC32(ST_Length((mlnstr))) FROM geom_data;
CRC32(ST_Length((mlnstr)))
2090153432
SELECT CRC32(ST_Area((poly))) FROM geom_data;
CRC32(ST_Area((poly)))
534598600
SELECT CRC32(ST_Area((mpoly))) FROM geom_data;
CRC32(ST_Area((mpoly)))
3832313845
DROP TABLE geom_data;
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (e1 ENUM ('a','b'), s1 SET('a','b'));
INSERT INTO t1 VALUES(2,'a,b'),('a','b,a');
SELECT e1, CRC32(e1) FROM t1;
e1 CRC32(e1)
b 1908338681
a 3904355907
SELECT s1, CRC32(s1) FROM t1;
s1 CRC32(s1)
a,b 752423903
a,b 752423903
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (a JSON);
INSERT INTO t1 VALUES ('{"name" : "goodyear"}'),
('{"name" : "verygood-year"}');
SELECT a->>'$.name', CRC32(a) FROM t1;
a->>'$.name' CRC32(a)
goodyear 3664432072
verygood-year 922278888
SELECT CRC32(a->>'$.name') FROM t1 WHERE a->>'$.name' = 'goodyear';
CRC32(a->>'$.name')
3441724142
SELECT CRC32(REPLACE(JSON_EXTRACT(a, "$.name"),'\"',''))
FROM t1 WHERE JSON_EXTRACT(a, "$.name") = 'goodyear';
CRC32(REPLACE(JSON_EXTRACT(a, "$.name"),'\"',''))
3441724142
DROP TABLE t1;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES(10);
CREATE VIEW v1 AS SELECT CRC32(a) AS my_crc FROM t1;
SELECT * FROM v1;
my_crc
2707236321
SELECT CRC32(CRC32(my_crc)) FROM v1;
CRC32(CRC32(my_crc))
3114155452
DROP VIEW v1;
DROP TABLE t1;
CREATE TABLE t1 (a CHAR);
CREATE TABLE t2 (b BIGINT);
CREATE TRIGGER trg1
BEFORE INSERT ON t1
FOR EACH ROW
INSERT INTO t2 VALUES(CRC32(NEW.a));
INSERT INTO t1 VALUES('a');
SELECT * FROM t2;
b
3904355907
DROP TRIGGER trg1;
DROP TABLE t2;
DROP TABLE t1;
CREATE PROCEDURE crc32_proc (IN a CHAR, OUT b BIGINT)
SELECT CRC32(a) INTO b;
CALL crc32_proc('a',@val);
SELECT @val;
@val
3904355907
DROP PROCEDURE crc32_proc;
CREATE FUNCTION crc32_func(inputvar CHAR)
RETURNS BIGINT
BEGIN
DECLARE crcval BIGINT;
SELECT CRC32(inputvar) INTO crcval;
RETURN crcval;
END|
SELECT crc32_func('a');
crc32_func('a')
3904355907
DROP FUNCTION crc32_func;
PREPARE stmt1 FROM 'SELECT CRC32(?)';
SET @val = 'a';
EXECUTE stmt1 USING @val;
CRC32(?)
3904355907
DEALLOCATE PREPARE stmt;
SET NAMES utf8;
CREATE TABLE t1 (a TEXT) CHARACTER SET = utf8;
LOAD DATA INFILE '../../std_data/loaddata_utf8.dat' INTO TABLE t1 CHARACTER SET utf8;
SELECT HEX(a), CRC32(a) from t1;
HEX(a) CRC32(a)
E4B880E4BA8CE4B889 1785250883
E59B9BE4BA94E585AD 2914501801
E4B883E585ABE4B99D 2374586519
E4B880E4BA8CE4B889 1785250883
E59B9BE4BA94E585AD 2914501801
E4B883E585ABE4B99D0A 1546750244
DROP TABLE t1;
SET NAMES default;
mysql-test/main/func_math.test
View file @ 1a011e5b
......@@ -659,3 +659,241 @@ SELECT a, HEX(a) FROM t2;
DROP TABLE t2;
DROP TABLE t1;
SET sql_mode=DEFAULT;
--echo #
--echo # Bug#26495791 - EXPAND TEST SUITE TO INCLUDE CRC32 TESTS
--echo #
SELECT CRC32(NULL), CRC32(''), CRC32('MySQL'), CRC32('mysql');
SELECT CRC32('01234567'), CRC32('012345678');
SELECT CRC32('~!@$%^*'), CRC32('-0.0001');
SELECT CRC32(99999999999999999999999999999999);
SELECT CRC32(-99999999999999999999999999999999);
# Test cases for using the function in aggregate functions, group-by, having
# and order-by clauses
DROP TABLE IF EXISTS t;
CREATE TABLE t(a INT, b VARCHAR(2));
INSERT INTO t VALUES (1,'a'), (2,'qw'), (1,'t'), (3,'t');
SELECT crc32(SUM(a)) FROM t;
SELECT crc32(AVG(a)) FROM t GROUP BY b;
SELECT crc32(MAX(b)) FROM t GROUP BY a;
SELECT a, b, crc32(a) FROM t GROUP BY a,b HAVING crc32(MAX(a))=450215437;
SELECT a,b,concat(a,b),crc32(concat(a,b)) FROM t ORDER BY crc32(concat(a,b));
DROP TABLE t;
# Test cases for arithmetic operators and functions
SELECT CRC32(4+2);
SELECT CRC32(4/2);
SELECT CRC32(4-2);
SELECT CRC32(4*2);
SELECT CRC32(ABS(-6));
SELECT CRC32(CEILING(1.23));
SELECT CRC32(FLOOR(1.23));
SELECT CRC32(LOG(10,100));
SELECT CRC32(PI());
SELECT CRC32(POWER(2,2));
SELECT CRC32(ROUND(1.58));
SELECT CRC32(SIGN(0));
SELECT CRC32(SQRT(4));
# Test cases for comparison operators
SELECT CRC32(2 > 4);
SELECT CRC32(2 < 4);
SELECT CRC32(2 >= 4);
SELECT CRC32(2 <= 4);
SELECT CRC32(2 != 4);
# Test cases for logical operators
SELECT CRC32(NOT 1);
SELECT CRC32(1 AND 1);
SELECT CRC32(1 OR 1);
SELECT CRC32(1 XOR 1);
# Test cases for string functions
SELECT CRC32(ASCII('2'));
SELECT CRC32(BIT_LENGTH('text'));
SELECT CRC32(CHAR('77','121','83','81','76'));
SELECT CRC32(CONCAT('good','year'));
SELECT CRC32(INSERT('foodyear', 1, 4, 'good'));
SELECT CRC32(LEFT('goodyear', 4));
SELECT CRC32(LENGTH('text'));
SELECT CRC32(LOWER('GOODYEAR'));
SELECT CRC32(UPPER('goodyear'));
SELECT CRC32(LTRIM(' goodyear'));
SELECT CRC32(RTRIM('goodyear '));
SELECT CRC32(REPLACE('godyear','o','oo'));
SELECT CRC32(REVERSE('goodyear'));
# Test cases for boolean values
SELECT CRC32(true);
SELECT CRC32(false);
# Test cases for numeric data types
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (c1 BIT(5),
c2 TINYINT,
c3 MEDIUMINT,
c4 INTEGER,
c5 BIGINT,
c6 DECIMAL(7,5),
c7 FLOAT(7,5),
c8 DOUBLE(7,5));
INSERT INTO t1 VALUES (B'10101', 127, 8388607, 2147483647,
9223372036854775807, 10.5, 11.5, 12.5);
SELECT CRC32(c1) FROM t1;
SELECT CRC32(c2) FROM t1;
SELECT CRC32(c3) FROM t1;
SELECT CRC32(c4) FROM t1;
SELECT CRC32(c5) FROM t1;
SELECT CRC32(c6) FROM t1;
SELECT CRC32(c7) FROM t1;
SELECT CRC32(c8) FROM t1;
# Test cases for temporal data types
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (c1 DATE,
c2 DATETIME,
c3 TIMESTAMP,
c4 TIME,
c5 YEAR);
INSERT INTO t1 VALUES ('2007-01-01', '2007-01-01 12:00:01',
'2007-01-01 00:00:01.000000',
'12:00:01.000000', '2007');
SELECT CRC32(c1) FROM t1;
SELECT CRC32(c2) FROM t1;
SELECT CRC32(c3) FROM t1;
SELECT CRC32(c4) FROM t1;
SELECT CRC32(c5) FROM t1;
# Test cases for string data types
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (c1 CHAR,
c2 VARCHAR(10),
c3 BINARY(1),
c4 VARBINARY(10),
c5 TINYBLOB,
c6 TINYTEXT,
c7 BLOB,
c8 TEXT,
c9 MEDIUMBLOB,
c10 MEDIUMTEXT,
c11 LONGBLOB,
c12 LONGTEXT);
INSERT INTO t1 VALUES ('a', 'a', 0x61, 0x61, 'a', 'a',
'a', 'a', 'a', 'a', 'a', 'a');
SELECT CRC32(c1) FROM t1;
SELECT CRC32(c2) FROM t1;
SELECT CRC32(c3) FROM t1;
SELECT CRC32(c4) FROM t1;
SELECT CRC32(c5) FROM t1;
SELECT CRC32(c6) FROM t1;
SELECT CRC32(c7) FROM t1;
SELECT CRC32(c8) FROM t1;
SELECT CRC32(c9) FROM t1;
SELECT CRC32(c10) FROM t1;
SELECT CRC32(c11) FROM t1;
SELECT CRC32(c12) FROM t1;
# Test cases for geometric data types
SELECT CRC32(ST_GeomFromText('POINT(1 1)'));
CREATE TABLE geom_data(id INT,
pt POINT NOT NULL,
lnstr LINESTRING NOT NULL,
mlnstr MULTILINESTRING NOT NULL,
poly POLYGON NOT NULL,
mpoly MULTIPOLYGON NOT NULL);
INSERT INTO geom_data VALUES (10,
ST_GEOMFROMTEXT('POINT(10 20)'),
ST_GEOMFROMTEXT('LINESTRING(0 0,5 5,6 6)'),
ST_GEOMFROMTEXT('MULTILINESTRING((0 0,2 3,4 5),(6 6,8 8,9 9,10 10))'),
ST_GEOMFROMTEXT('POLYGON((0 0,6 7,8 8,3 9,0 0),(3 6,4 6,4 7,3 6))'),
ST_GEOMFROMTEXT('MULTIPOLYGON(((0 0,0 5,5 5,5 0,0 0)),
((2 2,4 5,6 2,2 2)))'));
SELECT CRC32(ST_X(pt)) FROM geom_data;
SELECT CRC32(ST_NumPoints((lnstr))) FROM geom_data;
SELECT CRC32(ST_Length((mlnstr))) FROM geom_data;
SELECT CRC32(ST_Area((poly))) FROM geom_data;
SELECT CRC32(ST_Area((mpoly))) FROM geom_data;
DROP TABLE geom_data;
# Test cases for ENUM and SET data types
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (e1 ENUM ('a','b'), s1 SET('a','b'));
INSERT INTO t1 VALUES(2,'a,b'),('a','b,a');
SELECT e1, CRC32(e1) FROM t1;
SELECT s1, CRC32(s1) FROM t1;
# Test cases for JSON data types
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (a JSON);
INSERT INTO t1 VALUES ('{"name" : "goodyear"}'),
('{"name" : "verygood-year"}');
SELECT a->>'$.name', CRC32(a) FROM t1;
SELECT CRC32(a->>'$.name') FROM t1 WHERE a->>'$.name' = 'goodyear';
SELECT CRC32(REPLACE(JSON_EXTRACT(a, "$.name"),'\"',''))
FROM t1 WHERE JSON_EXTRACT(a, "$.name") = 'goodyear';
DROP TABLE t1;
# Test case for views
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES(10);
CREATE VIEW v1 AS SELECT CRC32(a) AS my_crc FROM t1;
SELECT * FROM v1;
SELECT CRC32(CRC32(my_crc)) FROM v1;
DROP VIEW v1;
DROP TABLE t1;
# Test case for triggers
CREATE TABLE t1 (a CHAR);
CREATE TABLE t2 (b BIGINT);
CREATE TRIGGER trg1
BEFORE INSERT ON t1
FOR EACH ROW
INSERT INTO t2 VALUES(CRC32(NEW.a));
INSERT INTO t1 VALUES('a');
SELECT * FROM t2;
DROP TRIGGER trg1;
DROP TABLE t2;
DROP TABLE t1;
# Test case for a stored procedure
CREATE PROCEDURE crc32_proc (IN a CHAR, OUT b BIGINT)
SELECT CRC32(a) INTO b;
CALL crc32_proc('a',@val);
SELECT @val;
DROP PROCEDURE crc32_proc;
# Test case for a user defined function
DELIMITER |;
CREATE FUNCTION crc32_func(inputvar CHAR)
RETURNS BIGINT
BEGIN
DECLARE crcval BIGINT;
SELECT CRC32(inputvar) INTO crcval;
RETURN crcval;
END|
DELIMITER ;|
SELECT crc32_func('a');
DROP FUNCTION crc32_func;
# Test case for a prepared statement
PREPARE stmt1 FROM 'SELECT CRC32(?)';
SET @val = 'a';
EXECUTE stmt1 USING @val;
DEALLOCATE PREPARE stmt;
# Test case for checksum on contents of a file
SET NAMES utf8;
CREATE TABLE t1 (a TEXT) CHARACTER SET = utf8;
LOAD DATA INFILE '../../std_data/loaddata_utf8.dat' INTO TABLE t1 CHARACTER SET utf8;
SELECT HEX(a), CRC32(a) from t1;
DROP TABLE t1;
SET NAMES default;
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7