wehub-resource-sync
75 lines
2.6 KiB
Go
75 lines
2.6 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 functions
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import (
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"github.com/dolthub/go-mysql-server/sql"
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"github.com/dolthub/doltgresql/core"
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"github.com/dolthub/doltgresql/core/id"
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"github.com/dolthub/doltgresql/server/functions/framework"
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pgtypes "github.com/dolthub/doltgresql/server/types"
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)
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// initPgTableIsVisible registers the functions to the catalog.
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func initPgTableIsVisible() {
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framework.RegisterFunction(pg_table_is_visible_oid)
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}
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// pg_table_is_visible_oid represents the PostgreSQL system schema visibility inquiry function.
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var pg_table_is_visible_oid = framework.Function1{
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Name: "pg_table_is_visible",
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Return: pgtypes.Bool,
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Parameters: [1]*pgtypes.DoltgresType{pgtypes.Oid},
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IsNonDeterministic: true,
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Strict: true,
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Callable: func(ctx *sql.Context, _ [2]*pgtypes.DoltgresType, val any) (any, error) {
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oidVal := val.(id.Id)
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paths, err := core.SearchPath(ctx)
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if err != nil {
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return false, err
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}
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lookUpPaths := make(map[string]bool)
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for _, path := range paths {
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lookUpPaths[path] = true
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}
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var isVisible bool
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err = RunCallback(ctx, oidVal, Callbacks{
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Table: func(ctx *sql.Context, sch ItemSchema, table ItemTable) (cont bool, err error) {
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_, isVisible = lookUpPaths[sch.Item.SchemaName()]
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return false, nil
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},
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View: func(ctx *sql.Context, sch ItemSchema, view ItemView) (cont bool, err error) {
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_, isVisible = lookUpPaths[sch.Item.SchemaName()]
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return false, nil
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},
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Index: func(ctx *sql.Context, sch ItemSchema, table ItemTable, index ItemIndex) (cont bool, err error) {
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_, isVisible = lookUpPaths[sch.Item.SchemaName()]
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return false, nil
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},
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Sequence: func(ctx *sql.Context, sch ItemSchema, sequence ItemSequence) (cont bool, err error) {
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_, isVisible = lookUpPaths[sch.Item.SchemaName()]
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return false, nil
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},
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// TODO: This works for all types of relations, including views, materialized views, indexes, sequences and foreign tables.
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})
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if err != nil {
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return false, err
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}
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return isVisible, nil
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},
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}
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