wehub-resource-sync
86 lines
3.0 KiB
Go
86 lines
3.0 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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// PgStatWalName is a constant to the pg_stat_wal name.
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const PgStatWalName = "pg_stat_wal"
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// InitPgStatWal handles registration of the pg_stat_wal handler.
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func InitPgStatWal() {
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tables.AddHandler(PgCatalogName, PgStatWalName, PgStatWalHandler{})
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}
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// PgStatWalHandler is the handler for the pg_stat_wal table.
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type PgStatWalHandler struct{}
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var _ tables.Handler = PgStatWalHandler{}
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// Name implements the interface tables.Handler.
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func (p PgStatWalHandler) Name() string {
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return PgStatWalName
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}
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// RowIter implements the interface tables.Handler.
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func (p PgStatWalHandler) RowIter(ctx *sql.Context, partition sql.Partition) (sql.RowIter, error) {
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// TODO: Implement pg_stat_wal 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 PgStatWalHandler) PkSchema() sql.PrimaryKeySchema {
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return sql.PrimaryKeySchema{
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Schema: pgStatWalSchema,
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PkOrdinals: nil,
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}
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}
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// pgStatWalSchema is the schema for pg_stat_wal.
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var pgStatWalSchema = sql.Schema{
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{Name: "wal_records", Type: pgtypes.Int64, Default: nil, Nullable: true, Source: PgStatWalName},
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{Name: "wal_fpi", Type: pgtypes.Int64, Default: nil, Nullable: true, Source: PgStatWalName},
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{Name: "wal_bytes", Type: pgtypes.Numeric, Default: nil, Nullable: true, Source: PgStatWalName},
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{Name: "wal_buffers_full", Type: pgtypes.Int64, Default: nil, Nullable: true, Source: PgStatWalName},
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{Name: "wal_write", Type: pgtypes.Int64, Default: nil, Nullable: true, Source: PgStatWalName},
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{Name: "wal_sync", Type: pgtypes.Int64, Default: nil, Nullable: true, Source: PgStatWalName},
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{Name: "wal_write_time", Type: pgtypes.Float64, Default: nil, Nullable: true, Source: PgStatWalName},
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{Name: "wal_sync_time", Type: pgtypes.Float64, Default: nil, Nullable: true, Source: PgStatWalName},
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{Name: "stats_reset", Type: pgtypes.TimestampTZ, Default: nil, Nullable: true, Source: PgStatWalName},
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}
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// pgStatWalRowIter is the sql.RowIter for the pg_stat_wal table.
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type pgStatWalRowIter struct {
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}
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var _ sql.RowIter = (*pgStatWalRowIter)(nil)
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// Next implements the interface sql.RowIter.
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func (iter *pgStatWalRowIter) 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 *pgStatWalRowIter) Close(ctx *sql.Context) error {
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return nil
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}
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