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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"
)
// PgOperatorName is a constant to the pg_operator name.
const PgOperatorName = "pg_operator"
// InitPgOperator handles registration of the pg_operator handler.
func InitPgOperator() {
tables.AddHandler(PgCatalogName, PgOperatorName, PgOperatorHandler{})
}
// PgOperatorHandler is the handler for the pg_operator table.
type PgOperatorHandler struct{}
var _ tables.Handler = PgOperatorHandler{}
// Name implements the interface tables.Handler.
func (p PgOperatorHandler) Name() string {
return PgOperatorName
}
// RowIter implements the interface tables.Handler.
func (p PgOperatorHandler) RowIter(ctx *sql.Context, partition sql.Partition) (sql.RowIter, error) {
// TODO: Implement pg_operator row iter
return emptyRowIter()
}
// PkSchema implements the interface tables.Handler.
func (p PgOperatorHandler) PkSchema() sql.PrimaryKeySchema {
return sql.PrimaryKeySchema{
Schema: pgOperatorSchema,
PkOrdinals: nil,
}
}
// pgOperatorSchema is the schema for pg_operator.
var pgOperatorSchema = sql.Schema{
{Name: "oid", Type: pgtypes.Oid, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprname", Type: pgtypes.Name, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprnamespace", Type: pgtypes.Oid, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprowner", Type: pgtypes.Oid, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprkind", Type: pgtypes.InternalChar, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprcanmerge", Type: pgtypes.Bool, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprcanhash", Type: pgtypes.Bool, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprleft", Type: pgtypes.Oid, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprright", Type: pgtypes.Oid, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprresult", Type: pgtypes.Oid, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprcom", Type: pgtypes.Oid, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprnegate", Type: pgtypes.Oid, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprcode", Type: pgtypes.Regproc, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprrest", Type: pgtypes.Regproc, Default: nil, Nullable: false, Source: PgOperatorName},
{Name: "oprjoin", Type: pgtypes.Regproc, Default: nil, Nullable: false, Source: PgOperatorName},
}
// pgOperatorRowIter is the sql.RowIter for the pg_operator table.
type pgOperatorRowIter struct {
}
var _ sql.RowIter = (*pgOperatorRowIter)(nil)
// Next implements the interface sql.RowIter.
func (iter *pgOperatorRowIter) Next(ctx *sql.Context) (sql.Row, error) {
return nil, io.EOF
}
// Close implements the interface sql.RowIter.
func (iter *pgOperatorRowIter) Close(ctx *sql.Context) error {
return nil
}