com.google.cloud.spanner.jdbc.DatabaseMetaData_GetIndexInfo.sql Maven / Gradle / Ivy

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JDBC driver for Google Cloud Spanner.

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/*
 * Copyright 2019 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

SELECT IDX.TABLE_CATALOG AS TABLE_CAT, IDX.TABLE_SCHEMA AS TABLE_SCHEM, IDX.TABLE_NAME,
  CASE WHEN IS_UNIQUE THEN FALSE ELSE TRUE END AS NON_UNIQUE,
  IDX.TABLE_CATALOG AS INDEX_QUALIFIER, IDX.INDEX_NAME,
  CASE WHEN IDX.INDEX_NAME = 'PRIMARY_KEY' THEN 1 ELSE 2 END AS TYPE,
  ORDINAL_POSITION, COLUMN_NAME, SUBSTR(COLUMN_ORDERING, 1, 1) AS ASC_OR_DESC,
  -1 AS CARDINALITY, -- Not supported
  -1 AS PAGES, -- Not supported
  NULL AS FILTER_CONDITION
FROM INFORMATION_SCHEMA.INDEXES IDX
INNER JOIN INFORMATION_SCHEMA.INDEX_COLUMNS COL
  ON  IDX.TABLE_CATALOG=COL.TABLE_CATALOG
  AND IDX.TABLE_SCHEMA=COL.TABLE_SCHEMA
  AND IDX.TABLE_NAME=COL.TABLE_NAME
  AND IDX.INDEX_NAME=COL.INDEX_NAME
WHERE UPPER(IDX.TABLE_CATALOG) LIKE ?
  AND UPPER(IDX.TABLE_SCHEMA) LIKE ?
  AND UPPER(IDX.TABLE_NAME) LIKE ?
  AND UPPER(IDX.INDEX_NAME) LIKE ?
  AND (CASE WHEN IS_UNIQUE THEN 'YES' ELSE 'NO' END) LIKE ?
ORDER BY IDX.TABLE_NAME, IS_UNIQUE DESC, IDX.INDEX_NAME, CASE WHEN ORDINAL_POSITION IS NULL THEN 0 ELSE ORDINAL_POSITION END