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MDEV-13417 UPDATE produces wrong values if an updated column is later used as an update source

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Standard compatible behavior for UPDATE: all assignments in SET
are executed "simultaneously", not left-to-right. And `SET a=b,b=a`
will swap the values.
This commit is contained in:
Jerome Brauge
2018-01-29 16:53:39 +01:00
committed by Sergei Golubchik
parent 355ee6877b
commit d943d7f712
29 changed files with 566 additions and 76 deletions
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16
mysql-test/suite/compat/oracle/r/sp-param.result
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@ -5,7 +5,7 @@ SET sql_mode=ORACLE;
CREATE FUNCTION f1(param CHAR) RETURN CHAR AS BEGIN RETURN param; END;;
SHOW CREATE FUNCTION f1;
Function sql_mode Create Function character_set_client collation_connection Database Collation
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param CHAR) RETURN varchar(2000) CHARSET latin1
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER,SIMULTANEOUS_ASSIGNMENT CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param CHAR) RETURN varchar(2000) CHARSET latin1
AS BEGIN RETURN param; END latin1 latin1_swedish_ci latin1_swedish_ci
SELECT LENGTH(f1(REPEAT('a',2000)));;
LENGTH(f1(REPEAT('a',2000)))
@ -21,7 +21,7 @@ DROP FUNCTION f1;
CREATE FUNCTION f1(param NCHAR) RETURN NCHAR AS BEGIN RETURN param; END;;
SHOW CREATE FUNCTION f1;
Function sql_mode Create Function character_set_client collation_connection Database Collation
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param NCHAR) RETURN varchar(2000) CHARSET utf8
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER,SIMULTANEOUS_ASSIGNMENT CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param NCHAR) RETURN varchar(2000) CHARSET utf8
AS BEGIN RETURN param; END latin1 latin1_swedish_ci latin1_swedish_ci
SELECT LENGTH(f1(REPEAT('a',2000)));;
LENGTH(f1(REPEAT('a',2000)))
@ -37,7 +37,7 @@ DROP FUNCTION f1;
CREATE FUNCTION f1(param BINARY) RETURN BINARY AS BEGIN RETURN param; END;;
SHOW CREATE FUNCTION f1;
Function sql_mode Create Function character_set_client collation_connection Database Collation
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param BINARY) RETURN varbinary(2000)
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER,SIMULTANEOUS_ASSIGNMENT CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param BINARY) RETURN varbinary(2000)
AS BEGIN RETURN param; END latin1 latin1_swedish_ci latin1_swedish_ci
SELECT LENGTH(f1(REPEAT('a',2000)));;
LENGTH(f1(REPEAT('a',2000)))
@ -53,7 +53,7 @@ DROP FUNCTION f1;
CREATE FUNCTION f1(param VARCHAR) RETURN VARCHAR AS BEGIN RETURN param; END;;
SHOW CREATE FUNCTION f1;
Function sql_mode Create Function character_set_client collation_connection Database Collation
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param VARCHAR) RETURN varchar(4000) CHARSET latin1
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER,SIMULTANEOUS_ASSIGNMENT CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param VARCHAR) RETURN varchar(4000) CHARSET latin1
AS BEGIN RETURN param; END latin1 latin1_swedish_ci latin1_swedish_ci
SELECT LENGTH(f1(REPEAT('a',4000)));;
LENGTH(f1(REPEAT('a',4000)))
@ -69,7 +69,7 @@ DROP FUNCTION f1;
CREATE FUNCTION f1(param VARCHAR2) RETURN VARCHAR2 AS BEGIN RETURN param; END;;
SHOW CREATE FUNCTION f1;
Function sql_mode Create Function character_set_client collation_connection Database Collation
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param VARCHAR2) RETURN varchar(4000) CHARSET latin1
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER,SIMULTANEOUS_ASSIGNMENT CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param VARCHAR2) RETURN varchar(4000) CHARSET latin1
AS BEGIN RETURN param; END latin1 latin1_swedish_ci latin1_swedish_ci
SELECT LENGTH(f1(REPEAT('a',4000)));;
LENGTH(f1(REPEAT('a',4000)))
@ -85,7 +85,7 @@ DROP FUNCTION f1;
CREATE FUNCTION f1(param NVARCHAR) RETURN NVARCHAR AS BEGIN RETURN param; END;;
SHOW CREATE FUNCTION f1;
Function sql_mode Create Function character_set_client collation_connection Database Collation
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param NVARCHAR) RETURN varchar(4000) CHARSET utf8
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER,SIMULTANEOUS_ASSIGNMENT CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param NVARCHAR) RETURN varchar(4000) CHARSET utf8
AS BEGIN RETURN param; END latin1 latin1_swedish_ci latin1_swedish_ci
SELECT LENGTH(f1(REPEAT('a',4000)));;
LENGTH(f1(REPEAT('a',4000)))
@ -101,7 +101,7 @@ DROP FUNCTION f1;
CREATE FUNCTION f1(param VARBINARY) RETURN VARBINARY AS BEGIN RETURN param; END;;
SHOW CREATE FUNCTION f1;
Function sql_mode Create Function character_set_client collation_connection Database Collation
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param VARBINARY) RETURN varbinary(4000)
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER,SIMULTANEOUS_ASSIGNMENT CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param VARBINARY) RETURN varbinary(4000)
AS BEGIN RETURN param; END latin1 latin1_swedish_ci latin1_swedish_ci
SELECT LENGTH(f1(REPEAT('a',4000)));;
LENGTH(f1(REPEAT('a',4000)))
@ -117,7 +117,7 @@ DROP FUNCTION f1;
CREATE FUNCTION f1(param RAW) RETURN RAW AS BEGIN RETURN param; END;;
SHOW CREATE FUNCTION f1;
Function sql_mode Create Function character_set_client collation_connection Database Collation
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param RAW) RETURN varbinary(4000)
f1 PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ORACLE,NO_KEY_OPTIONS,NO_TABLE_OPTIONS,NO_FIELD_OPTIONS,NO_AUTO_CREATE_USER,SIMULTANEOUS_ASSIGNMENT CREATE DEFINER="root"@"localhost" FUNCTION "f1"(param RAW) RETURN varbinary(4000)
AS BEGIN RETURN param; END latin1 latin1_swedish_ci latin1_swedish_ci
SELECT LENGTH(f1(REPEAT('a',4000)));;
LENGTH(f1(REPEAT('a',4000)))