wehub-resource-sync
88 lines
3.5 KiB
Go
88 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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// PgStatBgwriterName is a constant to the pg_stat_bgwriter name.
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const PgStatBgwriterName = "pg_stat_bgwriter"
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// InitPgStatBgwriter handles registration of the pg_stat_bgwriter handler.
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func InitPgStatBgwriter() {
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tables.AddHandler(PgCatalogName, PgStatBgwriterName, PgStatBgwriterHandler{})
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}
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// PgStatBgwriterHandler is the handler for the pg_stat_bgwriter table.
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type PgStatBgwriterHandler struct{}
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var _ tables.Handler = PgStatBgwriterHandler{}
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// Name implements the interface tables.Handler.
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func (p PgStatBgwriterHandler) Name() string {
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return PgStatBgwriterName
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}
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// RowIter implements the interface tables.Handler.
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func (p PgStatBgwriterHandler) RowIter(ctx *sql.Context, partition sql.Partition) (sql.RowIter, error) {
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// TODO: Implement pg_stat_bgwriter 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 PgStatBgwriterHandler) PkSchema() sql.PrimaryKeySchema {
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return sql.PrimaryKeySchema{
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Schema: pgStatBgwriterSchema,
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PkOrdinals: nil,
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}
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}
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// pgStatBgwriterSchema is the schema for pg_stat_bgwriter.
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var pgStatBgwriterSchema = sql.Schema{
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{Name: "checkpoints_timed", Type: pgtypes.Int64, Default: nil, Nullable: true, Source: PgStatBgwriterName},
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{Name: "checkpoints_req", Type: pgtypes.Int64, Default: nil, Nullable: true, Source: PgStatBgwriterName},
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{Name: "checkpoint_write_time", Type: pgtypes.Float64, Default: nil, Nullable: true, Source: PgStatBgwriterName},
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{Name: "checkpoint_sync_time", Type: pgtypes.Float64, Default: nil, Nullable: true, Source: PgStatBgwriterName},
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{Name: "buffers_checkpoint", Type: pgtypes.Int64, Default: nil, Nullable: true, Source: PgStatBgwriterName},
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{Name: "buffers_clean", Type: pgtypes.Int64, Default: nil, Nullable: true, Source: PgStatBgwriterName},
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{Name: "maxwritten_clean", Type: pgtypes.Int64, Default: nil, Nullable: true, Source: PgStatBgwriterName},
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{Name: "buffers_backend", Type: pgtypes.Int64, Default: nil, Nullable: true, Source: PgStatBgwriterName},
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{Name: "buffers_backend_fsync", Type: pgtypes.Int64, Default: nil, Nullable: true, Source: PgStatBgwriterName},
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{Name: "buffers_alloc", Type: pgtypes.Int64, Default: nil, Nullable: true, Source: PgStatBgwriterName},
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{Name: "stats_reset", Type: pgtypes.TimestampTZ, Default: nil, Nullable: true, Source: PgStatBgwriterName},
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}
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// pgStatBgwriterRowIter is the sql.RowIter for the pg_stat_bgwriter table.
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type pgStatBgwriterRowIter struct {
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}
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var _ sql.RowIter = (*pgStatBgwriterRowIter)(nil)
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// Next implements the interface sql.RowIter.
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func (iter *pgStatBgwriterRowIter) 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 *pgStatBgwriterRowIter) Close(ctx *sql.Context) error {
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return nil
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}
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