wehub-resource-sync
97 lines
4.6 KiB
Go
97 lines
4.6 KiB
Go
// Copyright 2022 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 information_schema
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import (
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"github.com/dolthub/go-mysql-server/sql"
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"github.com/dolthub/go-mysql-server/sql/information_schema"
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"github.com/dolthub/doltgresql/server/functions"
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)
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// newTablesTable returns a InformationSchemaTable for MySQL.
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func newTablesTable() *information_schema.InformationSchemaTable {
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return &information_schema.InformationSchemaTable{
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TableName: information_schema.TablesTableName,
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TableSchema: tablesSchema,
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Reader: tablesRowIter,
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}
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}
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// tablesSchema is the schema for the information_schema.TABLES table.
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var tablesSchema = sql.Schema{
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{Name: "table_catalog", Type: sql_identifier, Default: nil, Nullable: true, Source: information_schema.TablesTableName},
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{Name: "table_schema", Type: sql_identifier, Default: nil, Nullable: true, Source: information_schema.TablesTableName},
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{Name: "table_name", Type: sql_identifier, Default: nil, Nullable: true, Source: information_schema.TablesTableName},
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{Name: "table_type", Type: character_data, Default: nil, Nullable: true, Source: information_schema.TablesTableName},
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{Name: "self_referencing_column_name", Type: sql_identifier, Default: nil, Nullable: true, Source: information_schema.TablesTableName},
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{Name: "reference_generation", Type: character_data, Default: nil, Nullable: true, Source: information_schema.TablesTableName},
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{Name: "user_defined_type_catalog", Type: sql_identifier, Default: nil, Nullable: true, Source: information_schema.TablesTableName},
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{Name: "user_defined_type_schema", Type: sql_identifier, Default: nil, Nullable: true, Source: information_schema.TablesTableName},
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{Name: "user_defined_type_name", Type: sql_identifier, Default: nil, Nullable: true, Source: information_schema.TablesTableName},
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{Name: "is_insertable_into", Type: yes_or_no, Default: nil, Nullable: true, Source: information_schema.TablesTableName},
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{Name: "is_typed", Type: yes_or_no, Default: nil, Nullable: true, Source: information_schema.TablesTableName},
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{Name: "commit_action", Type: yes_or_no, Default: nil, Nullable: true, Source: information_schema.TablesTableName},
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}
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// tablesRowIter implements the sql.RowIter for the information_schema.TABLES table.
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func tablesRowIter(ctx *sql.Context, cat sql.Catalog) (sql.RowIter, error) {
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var rows []sql.Row
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err := functions.IterateCurrentDatabase(ctx, functions.Callbacks{
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Table: func(ctx *sql.Context, schema functions.ItemSchema, table functions.ItemTable) (cont bool, err error) {
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// TODO: Foreign and temporary tables.
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rows = append(rows, sql.Row{
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schema.Item.Name(), // table_catalog
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schema.Item.SchemaName(), // table_schema
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table.Item.Name(), // table_name
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"BASE TABLE", // table_type
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nil, // self_referencing_column_name
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nil, // reference_generation
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nil, // user_defined_type_catalog
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nil, // user_defined_type_schema
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nil, // user_defined_type_name
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"YES", // is_insertable_into
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"NO", // is_typed
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nil, // commit_action
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})
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return true, nil
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},
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View: func(ctx *sql.Context, schema functions.ItemSchema, view functions.ItemView) (cont bool, err error) {
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// TODO: Fill out the rest of the columns.
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rows = append(rows, sql.Row{
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schema.Item.Name(), // table_catalog
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schema.Item.SchemaName(), // table_schema
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view.Item.Name, // table_name
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"VIEW", // table_type
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nil, // self_referencing_column_name
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nil, // reference_generation
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nil, // user_defined_type_catalog
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nil, // user_defined_type_schema
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nil, // user_defined_type_name
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nil, // is_insertable_into
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"NO", // is_typed
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nil, // commit_action
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})
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return true, nil
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},
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})
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if err != nil {
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return nil, err
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}
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return sql.RowsToRowIter(rows...), nil
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}
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