wehub-resource-sync
52 lines
1.7 KiB
Go
52 lines
1.7 KiB
Go
// Copyright 2023 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 ast
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import (
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"strings"
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vitess "github.com/dolthub/vitess/go/vt/sqlparser"
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"github.com/dolthub/doltgresql/postgres/parser/sem/tree"
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)
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// nodeTableName handles *tree.TableName nodes.
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func nodeTableName(ctx *Context, node *tree.TableName) (vitess.TableName, error) {
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if node == nil {
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return vitess.TableName{}, nil
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}
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var dbName, schemaName vitess.TableIdent
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if node.ExplicitCatalog {
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dbName = vitess.NewTableIdent(string(node.CatalogName))
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}
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if node.ExplicitSchema {
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schemaName = vitess.NewTableIdent(string(node.SchemaName))
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}
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// for the information_schema schema, we treat it as a database name to make queries against it work with the engine
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// TODO: this is a hack, we need to handle information_schema differently for doltgres, and as a true schema in each db
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if strings.EqualFold(schemaName.String(), "information_schema") {
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return vitess.TableName{
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Name: vitess.NewTableIdent(string(node.ObjectName)),
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DbQualifier: schemaName,
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}, nil
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} else {
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return vitess.TableName{
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Name: vitess.NewTableIdent(string(node.ObjectName)),
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DbQualifier: dbName,
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SchemaQualifier: schemaName,
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}, nil
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}
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}
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