diff options
author | Alexander Barkov <bar@mariadb.com> | 2022-04-04 14:50:21 +0400 |
---|---|---|
committer | Alexander Barkov <bar@mariadb.com> | 2023-05-11 13:25:07 +0400 |
commit | d12008b408a0101d40e9270d125ef6843a7dd31f (patch) | |
tree | 89a8797171be11b50b669bff276a0c54e46026cd /mysql-test/suite/compat/oracle/r/func_concat.result | |
parent | 20567887808c3ceead746a4adb62bc82c1d52d62 (diff) | |
download | mariadb-git-bb-10.4-bar-MDEV-27744-v2.tar.gz |
MDEV-27744 InnoDB: Failing assertion: !cursor->index->is_committed() in row0ins.cc (from row_ins_sec_index_entry_by_modify) | Assertion `0' failed in row_upd_sec_index_entry (debug) | Corruptionbb-10.4-bar-MDEV-27744-v2
The crash happened with an indexed virtual column whose
value is evaluated using a function that has a different meaning
in sql_mode='' vs sql_mode=ORACLE:
- DECODE()
- LTRIM()
- RTRIM()
- LPAD()
- RPAD()
- REPLACE()
- SUBSTR()
For example:
CREATE TABLE t1 (
b VARCHAR(1),
g CHAR(1) GENERATED ALWAYS AS (SUBSTR(b,0,0)) VIRTUAL,
KEY g(g)
);
So far we had replacement XXX_ORACLE() functions for all mentioned function,
e.g. SUBSTR_ORACLE() for SUBSTR(). So it was possible to correctly re-parse
SUBSTR_ORACLE() even in sql_mode=''.
But it was not possible to re-parse the MariaDB version of SUBSTR()
after switching to sql_mode=ORACLE. It was erroneously mis-interpreted
as SUBSTR_ORACLE().
As a result, this combination worked fine:
SET sql_mode=ORACLE;
CREATE TABLE t1 ... g CHAR(1) GENERATED ALWAYS AS (SUBSTR(b,0,0)) VIRTUAL, ...;
INSERT ...
FLUSH TABLES;
SET sql_mode='';
INSERT ...
But the other way around it crashed:
SET sql_mode='';
CREATE TABLE t1 ... g CHAR(1) GENERATED ALWAYS AS (SUBSTR(b,0,0)) VIRTUAL, ...;
INSERT ...
FLUSH TABLES;
SET sql_mode=ORACLE;
INSERT ...
At CREATE time, SUBSTR was instantiated as Item_func_substr and printed
in the FRM file as substr(). At re-open time with sql_mode=ORACLE, "substr()"
was erroneously instantiated as Item_func_substr_oracle.
Fix:
The fix proposes a symmetric solution. It provides a way to re-parse reliably
all sql_mode dependent functions to their original CREATE TABLE time meaning,
no matter what the open-time sql_mode is.
We take advantage of the same idea we previously used to resolve sql_mode
dependent data types.
Now all sql_mode dependent functions are printed by SHOW using a schema
qualifier when the current sql_mode differs from the function sql_mode:
SET sql_mode='';
CREATE TABLE t1 ... SUBSTR(a,b,c) ..;
SET sql_mode=ORACLE;
SHOW CREATE TABLE t1; -> mariadb_schema.substr(a,b,c)
SET sql_mode=ORACLE;
CREATE TABLE t2 ... SUBSTR(a,b,c) ..;
SET sql_mode='';
SHOW CREATE TABLE t1; -> oracle_schema.substr(a,b,c)
Old replacement names like substr_oracle() are still understood for
backward compatibility and used in FRM files (for downgrade compatibility),
but they are not printed by SHOW any more.
Diffstat (limited to 'mysql-test/suite/compat/oracle/r/func_concat.result')
-rw-r--r-- | mysql-test/suite/compat/oracle/r/func_concat.result | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/mysql-test/suite/compat/oracle/r/func_concat.result b/mysql-test/suite/compat/oracle/r/func_concat.result index 392d579707a..17ca4be078a 100644 --- a/mysql-test/suite/compat/oracle/r/func_concat.result +++ b/mysql-test/suite/compat/oracle/r/func_concat.result @@ -3,12 +3,12 @@ EXPLAIN EXTENDED SELECT 'a'||'b'||'c'; 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 concat_operator_oracle(concat_operator_oracle('a','b'),'c') AS "'a'||'b'||'c'" +Note 1003 select concat(concat('a','b'),'c') AS "'a'||'b'||'c'" EXPLAIN EXTENDED SELECT CONCAT('a'||'b'||'c'); 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 concat_operator_oracle(concat_operator_oracle(concat_operator_oracle('a','b'),'c')) AS "CONCAT('a'||'b'||'c')" +Note 1003 select concat(concat(concat('a','b'),'c')) AS "CONCAT('a'||'b'||'c')" SELECT '' || ''; '' || '' @@ -211,14 +211,14 @@ SET sql_mode=ORACLE; CREATE VIEW v1 AS SELECT 'foo'||NULL||'bar' AS test; SHOW CREATE VIEW v1; View Create View character_set_client collation_connection -v1 CREATE VIEW "v1" AS select concat_operator_oracle(concat_operator_oracle('foo',NULL),'bar') AS "test" latin1 latin1_swedish_ci +v1 CREATE VIEW "v1" AS select concat(concat('foo',NULL),'bar') AS "test" latin1 latin1_swedish_ci SELECT * FROM v1; test foobar SET sql_mode=DEFAULT; SHOW CREATE VIEW v1; View Create View character_set_client collation_connection -v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select concat_operator_oracle(concat_operator_oracle('foo',NULL),'bar') AS `test` latin1 latin1_swedish_ci +v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select oracle_schema.concat(oracle_schema.concat('foo',NULL),'bar') AS `test` latin1 latin1_swedish_ci SELECT * FROM v1; test foobar @@ -234,7 +234,7 @@ NULL SET sql_mode=ORACLE; SHOW CREATE VIEW v1; View Create View character_set_client collation_connection -v1 CREATE VIEW "v1" AS select concat('foo',NULL,'bar') AS "test" latin1 latin1_swedish_ci +v1 CREATE VIEW "v1" AS select mariadb_schema.concat('foo',NULL,'bar') AS "test" latin1 latin1_swedish_ci SELECT * FROM v1; test NULL @@ -268,12 +268,12 @@ EXPLAIN EXTENDED SELECT -1<<1||1 AS a FROM DUAL; 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 -1 << concat_operator_oracle(1,1) AS "a" +Note 1003 select -1 << concat(1,1) AS "a" EXPLAIN EXTENDED SELECT -1||0<<1 AS a FROM DUAL; 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 concat_operator_oracle(-1,0) << 1 AS "a" +Note 1003 select concat(-1,0) << 1 AS "a" SELECT -1+1||1 AS a FROM DUAL; a 01 @@ -284,12 +284,12 @@ EXPLAIN EXTENDED SELECT -1+1||1 AS a FROM DUAL; 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 concat_operator_oracle(-1 + 1,1) AS "a" +Note 1003 select concat(-1 + 1,1) AS "a" EXPLAIN EXTENDED SELECT -1||0+1 AS a FROM DUAL; 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 concat_operator_oracle(-1,0) + 1 AS "a" +Note 1003 select concat(-1,0) + 1 AS "a" SELECT 1*1||-1 AS a FROM DUAL; a 1-1 @@ -300,12 +300,12 @@ EXPLAIN EXTENDED SELECT 1*1||-1 AS a FROM DUAL; 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 concat_operator_oracle(1 * 1,-1) AS "a" +Note 1003 select concat(1 * 1,-1) AS "a" EXPLAIN EXTENDED SELECT 1||1*-1 AS a FROM DUAL; 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 concat_operator_oracle(1,1 * -1) AS "a" +Note 1003 select concat(1,1 * -1) AS "a" SELECT -1^1||1 AS a FROM DUAL; a 184467440737095516141 @@ -316,12 +316,12 @@ EXPLAIN EXTENDED SELECT -1^1||1 AS a FROM DUAL; 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 concat_operator_oracle(-1 ^ 1,1) AS "a" +Note 1003 select concat(-1 ^ 1,1) AS "a" EXPLAIN EXTENDED SELECT -1||0^1 AS a FROM DUAL; 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 concat_operator_oracle(-1,0 ^ 1) AS "a" +Note 1003 select concat(-1,0 ^ 1) AS "a" # # MDEV-17359 Concatenation operator || in like expression failed in sql_mode=ORACLE # @@ -332,7 +332,7 @@ EXPLAIN EXTENDED SELECT 'abc' LIKE '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 'abc' like concat_operator_oracle('a','%') AS "'abc' LIKE 'a'||'%'" +Note 1003 select 'abc' like concat('a','%') AS "'abc' LIKE 'a'||'%'" SELECT 'x' FROM DUAL WHERE 11 LIKE 1||1; x x @@ -353,7 +353,7 @@ EXPLAIN EXTENDED SELECT c1 FROM t1 WHERE c1 LIKE '%'||'b' ORDER BY ord; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort Warnings: -Note 1003 select "test"."t1"."c1" AS "c1" from "test"."t1" where "test"."t1"."c1" like <cache>(concat_operator_oracle('%','b')) order by "test"."t1"."ord" +Note 1003 select "test"."t1"."c1" AS "c1" from "test"."t1" where "test"."t1"."c1" like <cache>(concat('%','b')) order by "test"."t1"."ord" SELECT c1 FROM t1 WHERE c1 LIKE c2||'%'||'c' ORDER BY ord; c1 abc @@ -361,7 +361,7 @@ EXPLAIN EXTENDED SELECT c1 FROM t1 WHERE c1 LIKE c2||'%'||'c' ORDER BY ord; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort Warnings: -Note 1003 select "test"."t1"."c1" AS "c1" from "test"."t1" where "test"."t1"."c1" like concat_operator_oracle(concat_operator_oracle("test"."t1"."c2",'%'),'c') order by "test"."t1"."ord" +Note 1003 select "test"."t1"."c1" AS "c1" from "test"."t1" where "test"."t1"."c1" like concat(concat("test"."t1"."c2",'%'),'c') order by "test"."t1"."ord" SELECT 'x' FROM t1 WHERE c1||c2 LIKE 'aa%'; x x @@ -369,7 +369,7 @@ EXPLAIN EXTENDED SELECT 'x' FROM t1 WHERE c1||c2 LIKE 'aa%'; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where Warnings: -Note 1003 select 'x' AS "x" from "test"."t1" where concat_operator_oracle("test"."t1"."c1","test"."t1"."c2") like 'aa%' +Note 1003 select 'x' AS "x" from "test"."t1" where concat("test"."t1"."c1","test"."t1"."c2") like 'aa%' SELECT 'x' FROM t1 WHERE c1||c2 LIKE c2||c1; x x @@ -377,7 +377,7 @@ EXPLAIN EXTENDED SELECT 'x' FROM t1 WHERE c1||c2 LIKE c2||c1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where Warnings: -Note 1003 select 'x' AS "x" from "test"."t1" where concat_operator_oracle("test"."t1"."c1","test"."t1"."c2") like concat_operator_oracle("test"."t1"."c2","test"."t1"."c1") +Note 1003 select 'x' AS "x" from "test"."t1" where concat("test"."t1"."c1","test"."t1"."c2") like concat("test"."t1"."c2","test"."t1"."c1") CREATE VIEW v1 AS SELECT c1, c2, c1 LIKE c2||'_' FROM t1 ORDER BY ord; SELECT * FROM v1; c1 c2 c1 LIKE c2||'_' @@ -388,6 +388,6 @@ EXPLAIN EXTENDED SELECT * FROM v1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: -Note 1003 select "test"."t1"."c1" AS "c1","test"."t1"."c2" AS "c2","test"."t1"."c1" like concat_operator_oracle("test"."t1"."c2",'_') AS "c1 LIKE c2||'_'" from "test"."t1" order by "test"."t1"."ord" +Note 1003 select "test"."t1"."c1" AS "c1","test"."t1"."c2" AS "c2","test"."t1"."c1" like concat("test"."t1"."c2",'_') AS "c1 LIKE c2||'_'" from "test"."t1" order by "test"."t1"."ord" DROP VIEW v1; DROP TABLE t1; |