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Generated column as part of UNIQUE (or PRIMARY) KEY (#919)

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* v1.1.0

* WIP: copying AUTO_INCREMENT value to ghost table
Initial commit: towards setting up a test suite

Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>

* greping for 'expect_table_structure' content

* Adding simple test for 'expect_table_structure' scenario

* adding tests for AUTO_INCREMENT value after row deletes. Should initially fail

* clear event beforehand

* parsing AUTO_INCREMENT from alter query, reading AUTO_INCREMENT from original table, applying AUTO_INCREMENT value onto ghost table if applicable and user has not specified AUTO_INCREMENT in alter statement

* support GetUint64

Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>

* minor update to test

Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>

* adding test for user defined AUTO_INCREMENT statement

* Generated column as part of UNIQUE (or PRIMARY) KEY

Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>

* skip analysis of generated column data type in unique key

Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>
This commit is contained in:
Shlomi Noach 2021-05-24 21:16:49 +03:00 committed by GitHub
parent 57a81ceff5
commit 36c669dd75
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3 changed files with 35 additions and 0 deletions
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4
go/logic/inspect.go
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@ -190,6 +190,10 @@ func (this *Inspector) inspectOriginalAndGhostTables() (err error) {
}
for _, column := range this.migrationContext.UniqueKey.Columns.Columns() {
if this.migrationContext.GhostTableVirtualColumns.GetColumn(column.Name) != nil {
// this is a virtual column
continue
}
if this.migrationContext.MappedSharedColumns.HasTimezoneConversion(column.Name) {
return fmt.Errorf("No support at this time for converting a column from DATETIME to TIMESTAMP that is also part of the chosen unique key. Column: %s, key: %s", column.Name, this.migrationContext.UniqueKey.Name)
}

30
localtests/generated-columns57-unique/create.sql Normal file
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@ -0,0 +1,30 @@
drop table if exists gh_ost_test;
create table gh_ost_test (
id int auto_increment,
`idb` varchar(36) CHARACTER SET utf8mb4 GENERATED ALWAYS AS (json_unquote(json_extract(`jsonobj`,_utf8mb4'$._id'))) STORED NOT NULL,
`jsonobj` json NOT NULL,
PRIMARY KEY (`id`,`idb`)
) auto_increment=1;
insert into gh_ost_test (id, jsonobj) values (null, '{"_id":2}');
insert into gh_ost_test (id, jsonobj) values (null, '{"_id":3}');
drop event if exists gh_ost_test;
delimiter ;;
create event gh_ost_test
on schedule every 1 second
starts current_timestamp
ends current_timestamp + interval 60 second
on completion not preserve
enable
do
begin
insert into gh_ost_test (id, jsonobj) values (null, '{"_id":5}');
insert into gh_ost_test (id, jsonobj) values (null, '{"_id":7}');
insert into gh_ost_test (id, jsonobj) values (null, '{"_id":11}');
insert into gh_ost_test (id, jsonobj) values (null, '{"_id":13}');
insert into gh_ost_test (id, jsonobj) values (null, '{"_id":17}');
insert into gh_ost_test (id, jsonobj) values (null, '{"_id":19}');
insert into gh_ost_test (id, jsonobj) values (null, '{"_id":23}');
insert into gh_ost_test (id, jsonobj) values (null, '{"_id":27}');
end ;;

1
localtests/generated-columns57-unique/ignore_versions Normal file
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@ -0,0 +1 @@
(5.5|5.6)