parser: support index name in FOREIGN KEY clause; Online DDL to reject FK clauses#8058
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shlomi-noach merged 6 commits intovitessio:masterfrom May 10, 2021
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OnlineDDL: explicit error when foreign key clause found Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>
shlomi-noach
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GuptaManan100,
harshit-gangal and
systay
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Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>
Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>
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GuptaManan100
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May 10, 2021
Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>
systay
reviewed
May 10, 2021
go/vt/schema/online_ddl.go
Outdated
| } | ||
|
|
||
| fk := &fkContraint{} | ||
| _ = sqlparser.Walk(fk.FkWalk, ddlStmt) |
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nit: You can return the error from fk.FkWalk directly, which would also abort the traversal of the AST.
systay
reviewed
May 10, 2021
go/vt/schema/online_ddl.go
Outdated
| *sqlparser.TableSpec, *sqlparser.AddConstraintDefinition, *sqlparser.ConstraintDefinition: | ||
| return true, nil | ||
| case *sqlparser.ForeignKeyDefinition: | ||
| fk.found = true |
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nit: here you could return an error
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Oh I like this! Updated code.
Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>
systay
reviewed
May 10, 2021
| case sqlparser.DDLStatement: | ||
| if !stmt.IsFullyParsed() { | ||
| return nil, vterrors.Errorf(vtrpcpb.Code_INVALID_ARGUMENT, "NewOnlineDDL: cannot fully parse statement %v", sqlparser.String(stmt)) | ||
| return nil, vterrors.Errorf(vtrpcpb.Code_INVALID_ARGUMENT, "NewOnlineDDL: cannot parse statement: %v", sqlparser.String(stmt)) |
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nit: To get a nice looking error message:
return nil, vterrors.NewErrorf(vtrpcpb.Code_INVALID_ARGUMENT, vterrors.SyntaxError, "NewOnlineDDL: cannot parse statement: %s", sqlparser.String(stmt))
systay
approved these changes
May 10, 2021
This was referenced May 11, 2021
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Description
Fixes the specific comment #8055 (comment)
The parser now supports queries of the form:
index_namepart of the clause (my_fk) in the above.Online DDL now outright rejects any query that has to do with foreign keys.
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