mirror of
https://github.com/MariaDB/server.git
synced 2025-11-03 20:36:16 +01:00
222 lines
7.7 KiB
Text
222 lines
7.7 KiB
Text
set @save_max_allowed_packet=@@max_allowed_packet;
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set global max_allowed_packet=1048576;
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connect conn1,localhost,root,,;
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connection conn1;
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select @test_compress_string:='string for test compress function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ';
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@test_compress_string:='string for test compress function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa '
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string for test compress function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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select length(@test_compress_string);
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length(@test_compress_string)
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117
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select uncompress(compress(@test_compress_string));
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uncompress(compress(@test_compress_string))
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string for test compress function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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explain extended select uncompress(compress(@test_compress_string));
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select uncompress(compress(@`test_compress_string`)) AS `uncompress(compress(@test_compress_string))`
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select uncompressed_length(compress(@test_compress_string))=length(@test_compress_string);
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uncompressed_length(compress(@test_compress_string))=length(@test_compress_string)
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1
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explain extended select uncompressed_length(compress(@test_compress_string))=length(@test_compress_string);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select uncompressed_length(compress(@`test_compress_string`)) = octet_length(@`test_compress_string`) AS `uncompressed_length(compress(@test_compress_string))=length(@test_compress_string)`
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select uncompressed_length(compress(@test_compress_string));
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uncompressed_length(compress(@test_compress_string))
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117
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select length(compress(@test_compress_string))<length(@test_compress_string);
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length(compress(@test_compress_string))<length(@test_compress_string)
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1
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create table t1 (a text, b char(255), c char(4)) engine=myisam;
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insert into t1 (a,b,c) values (compress(@test_compress_string),compress(@test_compress_string),'d ');
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select uncompress(a) from t1;
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uncompress(a)
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string for test compress function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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select uncompress(b) from t1;
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uncompress(b)
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string for test compress function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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select concat('|',c,'|') from t1;
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concat('|',c,'|')
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|d|
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drop table t1;
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select compress("");
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compress("")
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select uncompress("");
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uncompress("")
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select uncompress(compress(""));
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uncompress(compress(""))
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select uncompressed_length("");
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uncompressed_length("")
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0
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create table t1 (a text);
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insert t1 values (compress(null)), ('A\0\0\0BBBBBBBB'), (compress(space(50000))), (space(50000));
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select length(a) from t1;
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length(a)
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NULL
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12
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76
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50000
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select length(uncompress(a)) from t1;
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length(uncompress(a))
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NULL
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NULL
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50000
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NULL
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Warnings:
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Warning 1259 ZLIB: Input data corrupted
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Warning 1256 Uncompressed data size too large; the maximum size is 1048576 (probably, length of uncompressed data was corrupted)
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drop table t1;
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set @@global.max_allowed_packet=1048576*100;
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connect newconn, localhost, root,,;
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select compress(repeat('aaaaaaaaaa', IF(XXX, 10, 10000000))) is null;
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compress(repeat('aaaaaaaaaa', IF(XXX, 10, 10000000))) is null
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0
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Warnings:
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Warning 1292 Truncated incorrect DOUBLE value: XXX
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Warning 1292 Truncated incorrect DOUBLE value: XXX
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disconnect newconn;
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connection default;
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set @@global.max_allowed_packet=@save_max_allowed_packet;
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create table t1(a blob);
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insert into t1 values(NULL), (compress('a'));
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select uncompress(a), uncompressed_length(a) from t1;
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uncompress(a) uncompressed_length(a)
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NULL NULL
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a 1
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drop table t1;
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create table t1(a blob);
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insert into t1 values ('0'), (NULL), ('0');
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select compress(a), compress(a) from t1;
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select compress(a) is null from t1;
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compress(a) is null
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0
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1
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0
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drop table t1;
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End of 4.1 tests
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create table t1 (a varchar(32) not null);
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insert into t1 values ('foo');
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explain select * from t1 where uncompress(a) is null;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 system NULL NULL NULL NULL 1
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Warnings:
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Warning 1259 ZLIB: Input data corrupted
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select * from t1 where uncompress(a) is null;
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a
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foo
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Warnings:
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Warning 1259 ZLIB: Input data corrupted
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explain select *, uncompress(a) from t1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 system NULL NULL NULL NULL 1
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select *, uncompress(a) from t1;
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a uncompress(a)
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foo NULL
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Warnings:
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Warning 1259 ZLIB: Input data corrupted
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select *, uncompress(a), uncompress(a) is null from t1;
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a uncompress(a) uncompress(a) is null
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foo NULL 1
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Warnings:
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Warning 1259 ZLIB: Input data corrupted
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Warning 1259 ZLIB: Input data corrupted
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drop table t1;
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CREATE TABLE t1 (c1 INT);
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INSERT INTO t1 VALUES (1), (1111), (11111);
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SELECT UNCOMPRESS(c1), UNCOMPRESSED_LENGTH(c1) FROM t1;
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UNCOMPRESS(c1) UNCOMPRESSED_LENGTH(c1)
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NULL NULL
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NULL NULL
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NULL 825307441
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EXPLAIN EXTENDED SELECT * FROM (SELECT UNCOMPRESSED_LENGTH(c1) FROM t1) AS s;
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DROP TABLE t1;
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End of 5.0 tests
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#
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# Start of 5.3 tests
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#
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#
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# MDEV-5783 Assertion `0' failed in make_sortkey(SORTPARAM*, uchar*, uchar*) on ORDER BY HEX(UNCOMPRESSED_LENGTH(pk))
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#
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CREATE TABLE t1 (pk INT PRIMARY KEY);
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INSERT INTO t1 VALUES (1),(2);
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SELECT UNCOMPRESSED_LENGTH(pk) FROM t1;
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UNCOMPRESSED_LENGTH(pk)
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NULL
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NULL
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Warnings:
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Warning 1259 ZLIB: Input data corrupted
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Warning 1259 ZLIB: Input data corrupted
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SELECT * FROM t1 ORDER BY HEX(UNCOMPRESSED_LENGTH(pk));
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DROP TABLE t1;
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#
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# End of 5.3 tests
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#
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SELECT UNCOMPRESS(CAST(0 AS BINARY(5)));
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UNCOMPRESS(CAST(0 AS BINARY(5)))
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NULL
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Warnings:
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Warning 1259 ZLIB: Input data corrupted
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disconnect conn1;
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connection default;
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set global max_allowed_packet=@save_max_allowed_packet;
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#
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# End of 5.5 tests
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#
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#
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# Start of 10.1 tests
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#
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#
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# MDEV-10864 Wrong result for WHERE .. (f2=COMPRESS('test') OR f2=COMPRESS('TEST'))
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#
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CREATE TABLE t1 (f1 VARCHAR(4), f2 VARCHAR(64), UNIQUE KEY k1 (f1,f2));
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INSERT INTO t1 VALUES ('test',compress('test')), ('TEST', compress('TEST'));
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SELECT f1,HEX(f2) FROM t1 ignore index(k1) WHERE f1='test' AND (f2= compress("test") OR f2= compress("TEST"));
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f1 HEX(f2)
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test 04000000789C2B492D2E0100045D01C1
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TEST 04000000789C0B710D0E0100031D0141
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SELECT f1,HEX(f2) FROM t1 WHERE f1='test' AND (f2= compress("test") OR f2= compress("TEST"));
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f1 HEX(f2)
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TEST 04000000789C0B710D0E0100031D0141
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test 04000000789C2B492D2E0100045D01C1
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SELECT f1,HEX(f2) FROM t1 WHERE f1='test' AND (f2= compress("TEST") OR f2= compress("test"));
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f1 HEX(f2)
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TEST 04000000789C0B710D0E0100031D0141
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test 04000000789C2B492D2E0100045D01C1
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DROP TABLE t1;
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#
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# End of 10.1 tests
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#
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#
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# MDEV-10134 Add full support for DEFAULT
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#
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CREATE TABLE t1 (a TEXT, b BLOB DEFAULT COMPRESS(a), bl INT DEFAULT UNCOMPRESSED_LENGTH(b), a1 TEXT DEFAULT UNCOMPRESS(b));
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` text DEFAULT NULL,
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`b` blob DEFAULT compress(`a`),
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`bl` int(11) DEFAULT uncompressed_length(`b`),
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`a1` text DEFAULT uncompress(`b`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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INSERT INTO t1 (a) VALUES (REPEAT('a',100));
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SELECT bl, a1 FROM t1;
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bl a1
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100 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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DROP TABLE t1;
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#
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# MDEV-23149 Server crashes in my_convert / ErrConvString::ptr / Item_char_typecast::check_truncation_with_warn
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#
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select 'foo' in (cast(compress('bar') as char(4)), 'qux');
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'foo' in (cast(compress('bar') as char(4)), 'qux')
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0
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Warnings:
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Warning 1292 Truncated incorrect CHAR(4) value: '\x03\x00\x00\x00x\x9CKJ,\x02\x00\x02]\x016'
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#
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# End of 10.2 tests
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#
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