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+/* rep-cache-db.sql -- schema for use in rep-caching
+ * This is intended for use with SQLite 3
+ *
+ * ====================================================================
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.
+ * ====================================================================
+ */
+
+-- STMT_CREATE_SCHEMA
+PRAGMA PAGE_SIZE = 4096;
+
+/* A table mapping representation hashes to locations in a rev file. */
+CREATE TABLE rep_cache (
+ hash TEXT NOT NULL PRIMARY KEY,
+ revision INTEGER NOT NULL,
+ offset INTEGER NOT NULL,
+ size INTEGER NOT NULL,
+ expanded_size INTEGER NOT NULL
+ );
+
+PRAGMA USER_VERSION = 1;
+
+
+-- STMT_GET_REP
+SELECT revision, offset, size, expanded_size
+FROM rep_cache
+WHERE hash = ?1
+
+-- STMT_SET_REP
+INSERT OR FAIL INTO rep_cache (hash, revision, offset, size, expanded_size)
+VALUES (?1, ?2, ?3, ?4, ?5)
+
+-- STMT_GET_REPS_FOR_RANGE
+SELECT hash, revision, offset, size, expanded_size
+FROM rep_cache
+WHERE revision >= ?1 AND revision <= ?2
+
+-- STMT_GET_MAX_REV
+SELECT MAX(revision)
+FROM rep_cache
+
+-- STMT_DEL_REPS_YOUNGER_THAN_REV
+DELETE FROM rep_cache
+WHERE revision > ?1
+
+/* An INSERT takes an SQLite reserved lock that prevents other writes
+ but doesn't block reads. The incomplete transaction means that no
+ permanent change is made to the database and the transaction is
+ removed when the database is closed. */
+-- STMT_LOCK_REP
+BEGIN TRANSACTION;
+INSERT INTO rep_cache VALUES ('dummy', 0, 0, 0, 0)
+
+-- STMT_UNLOCK_REP
+ROLLBACK TRANSACTION;