/
show_create_event.go
102 lines (85 loc) · 3.2 KB
/
show_create_event.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
// Copyright 2023 Dolthub, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package plan
import (
"fmt"
"github.com/dolthub/go-mysql-server/sql"
"github.com/dolthub/go-mysql-server/sql/types"
)
type ShowCreateEvent struct {
db sql.Database
Event sql.EventDefinition
}
var _ sql.Databaser = (*ShowCreateEvent)(nil)
var _ sql.Node = (*ShowCreateEvent)(nil)
var _ sql.CollationCoercible = (*ShowCreateEvent)(nil)
var showCreateEventSchema = sql.Schema{
&sql.Column{Name: "Event", Type: types.LongText, Nullable: false},
&sql.Column{Name: "sql_mode", Type: types.LongText, Nullable: false},
&sql.Column{Name: "time_zone", Type: types.LongText, Nullable: false},
&sql.Column{Name: "Create Event", Type: types.LongText, Nullable: false},
&sql.Column{Name: "character_set_client", Type: types.LongText, Nullable: false},
&sql.Column{Name: "collation_connection", Type: types.LongText, Nullable: false},
&sql.Column{Name: "Database Collation", Type: types.LongText, Nullable: false},
}
// NewShowCreateEvent creates a new ShowCreateEvent node for SHOW CREATE EVENT statements.
func NewShowCreateEvent(db sql.Database, event sql.EventDefinition) *ShowCreateEvent {
return &ShowCreateEvent{
db: db,
Event: event,
}
}
// String implements the sql.Node interface.
func (s *ShowCreateEvent) String() string {
return fmt.Sprintf("SHOW CREATE EVENT %s", s.Event.Name)
}
// Resolved implements the sql.Node interface.
func (s *ShowCreateEvent) Resolved() bool {
_, ok := s.db.(sql.UnresolvedDatabase)
return !ok
}
func (s *ShowCreateEvent) IsReadOnly() bool {
return true
}
// Children implements the sql.Node interface.
func (s *ShowCreateEvent) Children() []sql.Node {
return nil
}
// Schema implements the sql.Node interface.
func (s *ShowCreateEvent) Schema() sql.Schema {
return showCreateEventSchema
}
// WithChildren implements the sql.Node interface.
func (s *ShowCreateEvent) WithChildren(children ...sql.Node) (sql.Node, error) {
return NillaryWithChildren(s, children...)
}
// CheckPrivileges implements the interface sql.Node.
func (s *ShowCreateEvent) CheckPrivileges(ctx *sql.Context, opChecker sql.PrivilegedOperationChecker) bool {
// TODO: figure out what privileges are needed here
return true
}
// CollationCoercibility implements the interface sql.CollationCoercible.
func (*ShowCreateEvent) CollationCoercibility(ctx *sql.Context) (collation sql.CollationID, coercibility byte) {
return sql.Collation_binary, 7
}
// Database implements the sql.Databaser interface.
func (s *ShowCreateEvent) Database() sql.Database {
return s.db
}
// WithDatabase implements the sql.Databaser interface.
func (s *ShowCreateEvent) WithDatabase(db sql.Database) (sql.Node, error) {
ns := *s
ns.db = db
return &ns, nil
}