Examples with SecondaryIndexSeek herddb.index.SecondaryIndexSeek used on opensource projects

Example 26 with SecondaryIndexSeek

use of herddb.index.SecondaryIndexSeek in project herddb by diennea.

the class IndexScanRangeTest method secondaryIndexSeek.

private void secondaryIndexSeek(String indexType) throws Exception {
    String nodeId = "localhost";
    try (DBManager manager = new DBManager("localhost", new MemoryMetadataStorageManager(), new MemoryDataStorageManager(), new MemoryCommitLogManager(), null, null)) {
        manager.start();
        CreateTableSpaceStatement st1 = new CreateTableSpaceStatement("tblspace1", Collections.singleton(nodeId), nodeId, 1, 0, 0);
        manager.executeStatement(st1, StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        manager.waitForTablespace("tblspace1", 10000);
        Table table = Table.builder().tablespace("tblspace1").name("t1").column("id", ColumnTypes.STRING).column("n1", ColumnTypes.INTEGER).column("n2", ColumnTypes.INTEGER).column("name", ColumnTypes.STRING).primaryKey("id").build();
        CreateTableStatement st2 = new CreateTableStatement(table);
        manager.executeStatement(st2, StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        Index index = Index.builder().onTable(table).type(indexType).column("n1", ColumnTypes.INTEGER).build();
        TestUtils.executeUpdate(manager, "INSERT INTO tblspace1.t1(id,n1,n2,name) values('a',1,5,'n1')", Collections.emptyList());
        TestUtils.executeUpdate(manager, "INSERT INTO tblspace1.t1(id,n1,n2,name) values('b',2,5,'n1')", Collections.emptyList());
        TestUtils.executeUpdate(manager, "INSERT INTO tblspace1.t1(id,n1,n2,name) values('c',2,5,'n2')", Collections.emptyList());
        TestUtils.executeUpdate(manager, "INSERT INTO tblspace1.t1(id,n1,n2,name) values('d',2,5,'n2')", Collections.emptyList());
        TestUtils.executeUpdate(manager, "INSERT INTO tblspace1.t1(id,n1,n2,name) values('e',3,5,'n2')", Collections.emptyList());
        // create index, it will be built using existing data
        CreateIndexStatement st3 = new CreateIndexStatement(index);
        manager.executeStatement(st3, StatementEvaluationContext.DEFAULT_EVALUATION_CONTEXT(), TransactionContext.NO_TRANSACTION);
        {
            TranslatedQuery translated = manager.getPlanner().translate(TableSpace.DEFAULT, "SELECT * FROM tblspace1.t1 WHERE n1=2", Collections.emptyList(), true, true, false, -1);
            ScanStatement scan = translated.plan.mainStatement.unwrap(ScanStatement.class);
            assertTrue(scan.getPredicate().getIndexOperation() instanceof SecondaryIndexSeek);
            try (DataScanner scan1 = manager.scan(scan, translated.context, TransactionContext.NO_TRANSACTION)) {
                assertEquals(3, scan1.consume().size());
            }
        }
    }
}