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2026-07-13 12:32:25 +08:00

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// Copyright 2024 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 pgcatalog
import (
"io"
"github.com/dolthub/go-mysql-server/sql"
"github.com/dolthub/doltgresql/server/tables"
pgtypes "github.com/dolthub/doltgresql/server/types"
)
// PgShadowName is a constant to the pg_shadow name.
const PgShadowName = "pg_shadow"
// InitPgShadow handles registration of the pg_shadow handler.
func InitPgShadow() {
tables.AddHandler(PgCatalogName, PgShadowName, PgShadowHandler{})
}
// PgShadowHandler is the handler for the pg_shadow table.
type PgShadowHandler struct{}
var _ tables.Handler = PgShadowHandler{}
// Name implements the interface tables.Handler.
func (p PgShadowHandler) Name() string {
return PgShadowName
}
// RowIter implements the interface tables.Handler.
func (p PgShadowHandler) RowIter(ctx *sql.Context, partition sql.Partition) (sql.RowIter, error) {
// TODO: Implement pg_shadow row iter
return emptyRowIter()
}
// PkSchema implements the interface tables.Handler.
func (p PgShadowHandler) PkSchema() sql.PrimaryKeySchema {
return sql.PrimaryKeySchema{
Schema: pgShadowSchema,
PkOrdinals: nil,
}
}
// pgShadowSchema is the schema for pg_shadow.
var pgShadowSchema = sql.Schema{
{Name: "usename", Type: pgtypes.Name, Default: nil, Nullable: true, Source: PgShadowName},
{Name: "usesysid", Type: pgtypes.Oid, Default: nil, Nullable: true, Source: PgShadowName},
{Name: "usecreatedb", Type: pgtypes.Bool, Default: nil, Nullable: true, Source: PgShadowName},
{Name: "usesuper", Type: pgtypes.Bool, Default: nil, Nullable: true, Source: PgShadowName},
{Name: "userepl", Type: pgtypes.Bool, Default: nil, Nullable: true, Source: PgShadowName},
{Name: "usebypassrls", Type: pgtypes.Bool, Default: nil, Nullable: true, Source: PgShadowName},
{Name: "passwd", Type: pgtypes.Text, Default: nil, Nullable: true, Source: PgShadowName}, // TODO: collation C
{Name: "valuntil", Type: pgtypes.TimestampTZ, Default: nil, Nullable: true, Source: PgShadowName},
{Name: "useconfig", Type: pgtypes.TimeArray, Default: nil, Nullable: true, Source: PgShadowName}, // TODO: collation C
}
// pgShadowRowIter is the sql.RowIter for the pg_shadow table.
type pgShadowRowIter struct {
}
var _ sql.RowIter = (*pgShadowRowIter)(nil)
// Next implements the interface sql.RowIter.
func (iter *pgShadowRowIter) Next(ctx *sql.Context) (sql.Row, error) {
return nil, io.EOF
}
// Close implements the interface sql.RowIter.
func (iter *pgShadowRowIter) Close(ctx *sql.Context) error {
return nil
}