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MDEV-18114 Foreign Key Constraint actions don't affect Virtual Column

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* invoke check_expression() for all vcol_info's in
  mysql_prepare_create_table() to check for FK CASCADE
* also check for SET NULL and SET DEFAULT
* to check against existing FKs when a vcol is added in ALTER TABLE,
  old FKs must be added to the new_key_list just like other indexes are
* check columns recursively, if vcol1 references vcol2,
  flags of vcol2 must be taken into account
* remove check_table_name_processor(), put that logic under
  check_vcol_func_processor() to avoid walking the tree twice
This commit is contained in:
Sergei Golubchik
2023-07-13 10:59:39 +02:00
parent ab1191c039
commit da09ae05a9
12 changed files with 269 additions and 116 deletions
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mysql-test/suite/gcol/r/innodb_virtual_basic.result
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@@ -1077,7 +1077,7 @@ KEY `a_2` (`a`,`vbidxcol`),
KEY `vbidxcol_2` (`vbidxcol`,`d`),
CONSTRAINT `fk_16` FOREIGN KEY (`a`) REFERENCES `ibstd_16` (`a`) ON DELETE SET NULL
) ENGINE=InnoDB;
DROP TABLE ibstd_16_fk;
ERROR HY000: Function or expression 'a' cannot be used in the GENERATED ALWAYS AS clause of `vadcol`
CREATE TABLE `ibstd_16_fk` (
`a` int(11) DEFAULT NULL,
`d` int(11) DEFAULT NULL,