wehub-resource-sync
93 lines
3.5 KiB
Go
93 lines
3.5 KiB
Go
// Copyright 2024 Dolthub, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package pgcatalog
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import (
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"io"
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"github.com/dolthub/go-mysql-server/sql"
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"github.com/dolthub/doltgresql/server/tables"
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pgtypes "github.com/dolthub/doltgresql/server/types"
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)
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// PgLocksName is a constant to the pg_locks name.
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const PgLocksName = "pg_locks"
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// InitPgLocks handles registration of the pg_locks handler.
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func InitPgLocks() {
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tables.AddHandler(PgCatalogName, PgLocksName, PgLocksHandler{})
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}
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// PgLocksHandler is the handler for the pg_locks table.
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type PgLocksHandler struct{}
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var _ tables.Handler = PgLocksHandler{}
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// Name implements the interface tables.Handler.
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func (p PgLocksHandler) Name() string {
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return PgLocksName
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}
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// RowIter implements the interface tables.Handler.
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func (p PgLocksHandler) RowIter(ctx *sql.Context, partition sql.Partition) (sql.RowIter, error) {
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// TODO: Implement pg_locks row iter
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return emptyRowIter()
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}
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// PkSchema implements the interface tables.Handler.
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func (p PgLocksHandler) PkSchema() sql.PrimaryKeySchema {
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return sql.PrimaryKeySchema{
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Schema: pgLocksSchema,
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PkOrdinals: nil,
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}
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}
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// pgLocksSchema is the schema for pg_locks.
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var pgLocksSchema = sql.Schema{
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{Name: "locktype", Type: pgtypes.Text, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "database", Type: pgtypes.Oid, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "relation", Type: pgtypes.Oid, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "page", Type: pgtypes.Int32, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "tuple", Type: pgtypes.Int16, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "virtualxid", Type: pgtypes.Text, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "transactionid", Type: pgtypes.Xid, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "classid", Type: pgtypes.Oid, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "objid", Type: pgtypes.Oid, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "objsubid", Type: pgtypes.Int16, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "virtualtransaction", Type: pgtypes.Text, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "pid", Type: pgtypes.Int32, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "mode", Type: pgtypes.Text, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "granted", Type: pgtypes.Bool, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "fastpath", Type: pgtypes.Bool, Default: nil, Nullable: true, Source: PgLocksName},
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{Name: "waitstart", Type: pgtypes.TimestampTZ, Default: nil, Nullable: true, Source: PgLocksName},
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}
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// pgLocksRowIter is the sql.RowIter for the pg_locks table.
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type pgLocksRowIter struct {
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}
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var _ sql.RowIter = (*pgLocksRowIter)(nil)
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// Next implements the interface sql.RowIter.
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func (iter *pgLocksRowIter) Next(ctx *sql.Context) (sql.Row, error) {
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return nil, io.EOF
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}
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// Close implements the interface sql.RowIter.
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func (iter *pgLocksRowIter) Close(ctx *sql.Context) error {
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return nil
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}
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