hsqldb reports "user lacks privilege or object not found" only in memory-based database

Question

Environment: Spring(3.2.3.RELEASE) + MyBatis(3.2.2) + HSQL(2.3.0)

<resultMap id="hashMapResult" type="java.util.HashMap">
    <result property="key" column="key" />
    <result property="value" column="value" />
</resultMap>

<select id="getSettings" resultMap="hashMapResult">
    SELECT "KEY","VALUE" from "PUBLIC"."SETTINGS";
</select>

     create table "SETTINGS" (
    "KEY" varchar(255) not null,
    "VALUE" varchar(512) not null,
    CONSTRAINT SETTINGS_KEY_UNIQUE UNIQUE("KEY")
     );

URL: jdbc:hsqldb:mem:mydb;sql.syntax_mys=true;shutdown=true;

When using memory database, the following errors appeared:

Caused by: org.hsqldb.HsqlException: user lacks privilege or object not found: SETTINGS
at org.hsqldb.error.Error.error(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
at org.hsqldb.error.Error.error(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
at org.hsqldb.SchemaManager.getTable(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
at org.hsqldb.ParserDQL.readTableName(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
at org.hsqldb.ParserDQL.readTableOrSubquery(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
at org.hsqldb.ParserDQL.XreadTableReference(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]

But when using file-based database jdbc:hsqldb:file:mydb;sql.syntax_mys=true;shutdown=true; no errors at all.

I am using Spring's EmbeddedDatabaseFactory to init the database:

    try {
        EmbeddedDatabaseFactory dbFactory = new EmbeddedDatabaseFactory();
        DatabaseConfig dbConfig = appConfig.getDbConfig();
        ResourceDatabasePopulator populator = new ResourceDatabasePopulator();
        populator.setContinueOnError(false);
        populator.setIgnoreFailedDrops(false);
        DefaultResourceLoader resourceLoader = new DefaultResourceLoader();
        populator.addScript(resourceLoader.getResource(dbConfig
                .getSqlSchemeFile()));
        populator.addScript(resourceLoader.getResource(dbConfig
                .getSqlDataFile()));
        dbFactory.setDatabasePopulator(populator);
        dbFactory.setDatabaseName(dbConfig.getName());
        dbFactory.setDatabaseConfigurer(new HSQLConfigurer(dbConfig));
        return dbFactory.getDatabase();
    } catch (Exception e) {
        logger.error("dataSource error", e); //$NON-NLS-1$

        return null;
    }

Anyone knows why?

Answer 1

You shouldn't use shutdown=true in this context. It seems the connection is closed and the database is shutdown, which means the memory database no longer exists.

You should also avoid using VALUE as a column name. This is a keyword.