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

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

View File

@ -61,7 +61,7 @@ def mysql event modified 9 '0000-00-00 00:00:00' NO timestamp NULL NULL NULL NUL
def mysql event name 2 '' NO char 64 192 NULL NULL NULL utf8 utf8_general_ci char(64) PRI select,insert,update,references NEVER NULL
def mysql event on_completion 14 'DROP' NO enum 8 24 NULL NULL NULL utf8 utf8_general_ci enum('DROP','PRESERVE') select,insert,update,references NEVER NULL
def mysql event originator 17 NULL NO int NULL NULL 10 0 NULL NULL NULL int(10) unsigned select,insert,update,references NEVER NULL
def mysql event sql_mode 15 '' NO set 515 1545 NULL NULL NULL utf8 utf8_general_ci set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH','EMPTY_STRING_IS_NULL') select,insert,update,references NEVER NULL
def mysql event sql_mode 15 '' NO set 539 1617 NULL NULL NULL utf8 utf8_general_ci set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH','EMPTY_STRING_IS_NULL','SIMULTANEOUS_ASSIGNMENT') select,insert,update,references NEVER NULL
def mysql event starts 11 NULL YES datetime NULL NULL NULL NULL 0 NULL NULL datetime select,insert,update,references NEVER NULL
def mysql event status 13 'ENABLED' NO enum 18 54 NULL NULL NULL utf8 utf8_general_ci enum('ENABLED','DISABLED','SLAVESIDE_DISABLED') select,insert,update,references NEVER NULL
def mysql event time_zone 18 'SYSTEM' NO char 64 64 NULL NULL NULL latin1 latin1_swedish_ci char(64) select,insert,update,references NEVER NULL
@ -153,7 +153,7 @@ def mysql proc returns 10 NULL NO longblob 4294967295 4294967295 NULL NULL NULL
def mysql proc security_type 8 'DEFINER' NO enum 7 21 NULL NULL NULL utf8 utf8_general_ci enum('INVOKER','DEFINER') select,insert,update,references NEVER NULL
def mysql proc specific_name 4 '' NO char 64 192 NULL NULL NULL utf8 utf8_general_ci char(64) select,insert,update,references NEVER NULL
def mysql proc sql_data_access 6 'CONTAINS_SQL' NO enum 17 51 NULL NULL NULL utf8 utf8_general_ci enum('CONTAINS_SQL','NO_SQL','READS_SQL_DATA','MODIFIES_SQL_DATA') select,insert,update,references NEVER NULL
def mysql proc sql_mode 15 '' NO set 515 1545 NULL NULL NULL utf8 utf8_general_ci set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH','EMPTY_STRING_IS_NULL') select,insert,update,references NEVER NULL
def mysql proc sql_mode 15 '' NO set 539 1617 NULL NULL NULL utf8 utf8_general_ci set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH','EMPTY_STRING_IS_NULL','SIMULTANEOUS_ASSIGNMENT') select,insert,update,references NEVER NULL
def mysql proc type 3 NULL NO enum 9 27 NULL NULL NULL utf8 utf8_general_ci enum('FUNCTION','PROCEDURE') PRI select,insert,update,references NEVER NULL
def mysql procs_priv Db 2 '' NO char 64 192 NULL NULL NULL utf8 utf8_bin char(64) PRI select,insert,update,references NEVER NULL
def mysql procs_priv Grantor 6 '' NO char 141 423 NULL NULL NULL utf8 utf8_bin char(141) MUL select,insert,update,references NEVER NULL
@ -400,7 +400,7 @@ NULL mysql event starts datetime NULL NULL NULL NULL datetime
NULL mysql event ends datetime NULL NULL NULL NULL datetime
3.0000 mysql event status enum 18 54 utf8 utf8_general_ci enum('ENABLED','DISABLED','SLAVESIDE_DISABLED')
3.0000 mysql event on_completion enum 8 24 utf8 utf8_general_ci enum('DROP','PRESERVE')
3.0000 mysql event sql_mode set 515 1545 utf8 utf8_general_ci set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH','EMPTY_STRING_IS_NULL')
3.0000 mysql event sql_mode set 539 1617 utf8 utf8_general_ci set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH','EMPTY_STRING_IS_NULL','SIMULTANEOUS_ASSIGNMENT')
3.0000 mysql event comment char 64 192 utf8 utf8_bin char(64)
NULL mysql event originator int NULL NULL NULL NULL int(10) unsigned
1.0000 mysql event time_zone char 64 64 latin1 latin1_swedish_ci char(64)
@ -491,7 +491,7 @@ NULL mysql innodb_table_stats sum_of_other_index_sizes bigint NULL NULL NULL NUL
3.0000 mysql proc definer char 141 423 utf8 utf8_bin char(141)
NULL mysql proc created timestamp NULL NULL NULL NULL timestamp
NULL mysql proc modified timestamp NULL NULL NULL NULL timestamp
3.0000 mysql proc sql_mode set 515 1545 utf8 utf8_general_ci set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH','EMPTY_STRING_IS_NULL')
3.0000 mysql proc sql_mode set 539 1617 utf8 utf8_general_ci set('REAL_AS_FLOAT','PIPES_AS_CONCAT','ANSI_QUOTES','IGNORE_SPACE','IGNORE_BAD_TABLE_OPTIONS','ONLY_FULL_GROUP_BY','NO_UNSIGNED_SUBTRACTION','NO_DIR_IN_CREATE','POSTGRESQL','ORACLE','MSSQL','DB2','MAXDB','NO_KEY_OPTIONS','NO_TABLE_OPTIONS','NO_FIELD_OPTIONS','MYSQL323','MYSQL40','ANSI','NO_AUTO_VALUE_ON_ZERO','NO_BACKSLASH_ESCAPES','STRICT_TRANS_TABLES','STRICT_ALL_TABLES','NO_ZERO_IN_DATE','NO_ZERO_DATE','INVALID_DATES','ERROR_FOR_DIVISION_BY_ZERO','TRADITIONAL','NO_AUTO_CREATE_USER','HIGH_NOT_PRECEDENCE','NO_ENGINE_SUBSTITUTION','PAD_CHAR_TO_FULL_LENGTH','EMPTY_STRING_IS_NULL','SIMULTANEOUS_ASSIGNMENT')
1.0000 mysql proc comment text 65535 65535 utf8 utf8_bin text
3.0000 mysql proc character_set_client char 32 96 utf8 utf8_bin char(32)
3.0000 mysql proc collation_connection char 32 96 utf8 utf8_bin char(32)