Examples of com.salesforce.phoenix.jdbc.PhoenixStatement$ExecutableDropIndexStatement

com.salesforce.phoenix.jdbc.PhoenixStatement
JDBC Statement implementation of Phoenix. Currently only the following methods are supported: - {@link #executeQuery(String)}- {@link #executeUpdate(String)}- {@link #execute(String)}- {@link #getResultSet()}- {@link #getUpdateCount()}- {@link #close()}The Statement only supports the following options: - ResultSet.FETCH_FORWARD - ResultSet.TYPE_FORWARD_ONLY - ResultSet.CLOSE_CURSORS_AT_COMMIT @author jtaylor @since 0.1

        SelectStatement statement = parser.parseQuery();
        Scan scan = new Scan();
        PhoenixConnection pconn = DriverManager.getConnection(getUrl(), TEST_PROPERTIES).unwrap(PhoenixConnection.class);
        ColumnResolver resolver = FromCompiler.getResolver(statement, pconn);
        statement = StatementNormalizer.normalize(statement, resolver);
        context = new StatementContext(new PhoenixStatement(pconn), resolver, binds, scan);


        GroupBy groupBy = GroupByCompiler.compile(context, statement);
        // Optimize the HAVING clause by finding any group by expressions that can be moved
        // to the WHERE clause
        statement = HavingCompiler.rewrite(context, statement, groupBy);

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    @Test
    public void testOrderByOptimizedOut() throws Exception {
        Connection conn = DriverManager.getConnection(getUrl());
        conn.createStatement().execute("CREATE TABLE foo (k VARCHAR NOT NULL PRIMARY KEY, v VARCHAR) IMMUTABLE_ROWS=true");
        PhoenixStatement stmt = conn.createStatement().unwrap(PhoenixStatement.class);
        QueryPlan plan = stmt.optimizeQuery("SELECT * FROM foo ORDER BY k");
        assertEquals(OrderBy.FWD_ROW_KEY_ORDER_BY,plan.getOrderBy());
    }

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    @Test
    public void testOrderByDropped() throws Exception {
        Connection conn = DriverManager.getConnection(getUrl());
        conn.createStatement().execute("CREATE TABLE foo (k VARCHAR NOT NULL PRIMARY KEY, v VARCHAR) IMMUTABLE_ROWS=true");
        PhoenixStatement stmt = conn.createStatement().unwrap(PhoenixStatement.class);
        QueryPlan plan = stmt.optimizeQuery("SELECT * FROM foo ORDER BY 1,2,3");
        assertEquals(OrderBy.EMPTY_ORDER_BY,plan.getOrderBy());
    }

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    @Test
    public void testOrderByNotDropped() throws Exception {
        Connection conn = DriverManager.getConnection(getUrl());
        conn.createStatement().execute("CREATE TABLE foo (k VARCHAR NOT NULL PRIMARY KEY, v VARCHAR) IMMUTABLE_ROWS=true");
        PhoenixStatement stmt = conn.createStatement().unwrap(PhoenixStatement.class);
        QueryPlan plan = stmt.optimizeQuery("SELECT * FROM foo ORDER BY v");
        assertFalse(plan.getOrderBy().getOrderByExpressions().isEmpty());
    }

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    @Test
    public void testOrderByDroppedCompositeKey() throws Exception {
        Connection conn = DriverManager.getConnection(getUrl());
        conn.createStatement().execute("CREATE TABLE foo (j INTEGER NOT NULL, k BIGINT NOT NULL, v VARCHAR CONSTRAINT pk PRIMARY KEY (j,k)) IMMUTABLE_ROWS=true");
        PhoenixStatement stmt = conn.createStatement().unwrap(PhoenixStatement.class);
        QueryPlan plan = stmt.optimizeQuery("SELECT * FROM foo ORDER BY j,k");
        assertEquals(OrderBy.FWD_ROW_KEY_ORDER_BY,plan.getOrderBy());
    }

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    @Test
    public void testOrderByNotDroppedCompositeKey() throws Exception {
        Connection conn = DriverManager.getConnection(getUrl());
        conn.createStatement().execute("CREATE TABLE foo (j INTEGER NOT NULL, k BIGINT NOT NULL, v VARCHAR CONSTRAINT pk PRIMARY KEY (j,k)) IMMUTABLE_ROWS=true");
        PhoenixStatement stmt = conn.createStatement().unwrap(PhoenixStatement.class);
        QueryPlan plan = stmt.optimizeQuery("SELECT * FROM foo ORDER BY k,j");
        assertFalse(plan.getOrderBy().getOrderByExpressions().isEmpty());
    }

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    @Test
    public void testChooseIndexOverTable() throws Exception {
        Connection conn = DriverManager.getConnection(getUrl());
        conn.createStatement().execute("CREATE TABLE t (k INTEGER NOT NULL PRIMARY KEY, v1 VARCHAR, v2 VARCHAR) IMMUTABLE_ROWS=true");
        conn.createStatement().execute("CREATE INDEX idx ON t(v1)");
        PhoenixStatement stmt = conn.createStatement().unwrap(PhoenixStatement.class);
        QueryPlan plan = stmt.optimizeQuery("SELECT k FROM t WHERE v1 = 'bar'");
        assertEquals("IDX", plan.getTableRef().getTable().getTableName().getString());
    }

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    @Test
    public void testChooseTableOverIndex() throws Exception {
        Connection conn = DriverManager.getConnection(getUrl());
        conn.createStatement().execute("CREATE TABLE t (k INTEGER NOT NULL PRIMARY KEY, v1 VARCHAR, v2 VARCHAR) IMMUTABLE_ROWS=true");
        conn.createStatement().execute("CREATE INDEX idx ON t(v1)");
        PhoenixStatement stmt = conn.createStatement().unwrap(PhoenixStatement.class);
        QueryPlan plan = stmt.optimizeQuery("SELECT v1 FROM t WHERE k = 1");
        assertEquals("T", plan.getTableRef().getTable().getTableName().getString());
    }

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    @Test
    public void testChooseTableForSelection() throws Exception {
        Connection conn = DriverManager.getConnection(getUrl());
        conn.createStatement().execute("CREATE TABLE t (k INTEGER NOT NULL PRIMARY KEY, v1 VARCHAR, v2 VARCHAR) IMMUTABLE_ROWS=true");
        conn.createStatement().execute("CREATE INDEX idx ON t(v1)");
        PhoenixStatement stmt = conn.createStatement().unwrap(PhoenixStatement.class);
        QueryPlan plan = stmt.optimizeQuery("SELECT v1,v2 FROM t WHERE v1 = 'bar'");
        // Choose T because v2 is not in index
        assertEquals("T", plan.getTableRef().getTable().getTableName().getString());
    }

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    @Test
    public void testChooseTableForDynCols() throws Exception {
        Connection conn = DriverManager.getConnection(getUrl());
        conn.createStatement().execute("CREATE TABLE t (k INTEGER NOT NULL PRIMARY KEY, v1 VARCHAR, v2 VARCHAR) IMMUTABLE_ROWS=true");
        conn.createStatement().execute("CREATE INDEX idx ON t(v1)");
        PhoenixStatement stmt = conn.createStatement().unwrap(PhoenixStatement.class);
        QueryPlan plan = stmt.optimizeQuery("SELECT k FROM t(v3 VARCHAR) WHERE v1 = 'bar'");
        assertEquals("T", plan.getTableRef().getTable().getTableName().getString());
    }

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