Examples with Query io.confluent.ksql.parser.tree.Query used on opensource projects

Example 6 with Query

use of io.confluent.ksql.parser.tree.Query in project ksql by confluentinc.

the class KsqlParserTest method testSimpleLeftJoin.

@Test
public void testSimpleLeftJoin() throws Exception {
    String queryStr = "SELECT t1.col1, t2.col1, t2.col4, col5, t2.col2 FROM test1 t1 LEFT JOIN test2 t2 ON " + "t1.col1 = t2.col1;";
    Statement statement = KSQL_PARSER.buildAst(queryStr, metaStore).get(0);
    Assert.assertTrue("testSimpleQuery fails", statement instanceof Query);
    Query query = (Query) statement;
    Assert.assertTrue("testSimpleLeftJoin fails", query.getQueryBody() instanceof QuerySpecification);
    QuerySpecification querySpecification = (QuerySpecification) query.getQueryBody();
    Assert.assertTrue("testSimpleLeftJoin fails", querySpecification.getFrom() instanceof Join);
    Join join = (Join) querySpecification.getFrom();
    Assert.assertTrue("testSimpleLeftJoin fails", join.getType().toString().equalsIgnoreCase("LEFT"));
    Assert.assertTrue("testSimpleLeftJoin fails", ((AliasedRelation) join.getLeft()).getAlias().equalsIgnoreCase("T1"));
    Assert.assertTrue("testSimpleLeftJoin fails", ((AliasedRelation) join.getRight()).getAlias().equalsIgnoreCase("T2"));
}

Example 7 with Query

use of io.confluent.ksql.parser.tree.Query in project ksql by confluentinc.

the class KsqlParserTest method testBinaryExpression.

@Test
public void testBinaryExpression() throws Exception {
    String queryStr = "SELECT col0+10, col2, col3-col1 FROM test1;";
    Statement statement = KSQL_PARSER.buildAst(queryStr, metaStore).get(0);
    Assert.assertTrue("testBinaryExpression fails", statement instanceof Query);
    Query query = (Query) statement;
    Assert.assertTrue("testBinaryExpression fails", query.getQueryBody() instanceof QuerySpecification);
    QuerySpecification querySpecification = (QuerySpecification) query.getQueryBody();
    SingleColumn column0 = (SingleColumn) querySpecification.getSelect().getSelectItems().get(0);
    Assert.assertTrue("testBinaryExpression fails", column0.getAlias().get().equalsIgnoreCase("KSQL_COL_0"));
    Assert.assertTrue("testBinaryExpression fails", column0.getExpression().toString().equalsIgnoreCase("(TEST1.COL0 + 10)"));
}

Example 8 with Query

use of io.confluent.ksql.parser.tree.Query in project ksql by confluentinc.

the class KsqlParserTest method testBooleanLogicalExpression.

@Test
public void testBooleanLogicalExpression() throws Exception {
    String queryStr = "SELECT 10, col2, 'test', 2.5, true, -5 FROM test1 WHERE col1 = 10 AND col2 LIKE 'val' OR col4 > 2.6 ;";
    Statement statement = KSQL_PARSER.buildAst(queryStr, metaStore).get(0);
    Assert.assertTrue("testSimpleQuery fails", statement instanceof Query);
    Query query = (Query) statement;
    Assert.assertTrue("testProjection fails", query.getQueryBody() instanceof QuerySpecification);
    QuerySpecification querySpecification = (QuerySpecification) query.getQueryBody();
    SingleColumn column0 = (SingleColumn) querySpecification.getSelect().getSelectItems().get(0);
    Assert.assertTrue("testProjection fails", column0.getAlias().get().equalsIgnoreCase("KSQL_COL_0"));
    Assert.assertTrue("testProjection fails", column0.getExpression().toString().equalsIgnoreCase("10"));
    SingleColumn column1 = (SingleColumn) querySpecification.getSelect().getSelectItems().get(1);
    Assert.assertTrue("testProjection fails", column1.getAlias().get().equalsIgnoreCase("COL2"));
    Assert.assertTrue("testProjection fails", column1.getExpression().toString().equalsIgnoreCase("TEST1.COL2"));
    SingleColumn column2 = (SingleColumn) querySpecification.getSelect().getSelectItems().get(2);
    Assert.assertTrue("testProjection fails", column2.getAlias().get().equalsIgnoreCase("KSQL_COL_2"));
    Assert.assertTrue("testProjection fails", column2.getExpression().toString().equalsIgnoreCase("'test'"));
}

Example 9 with Query

use of io.confluent.ksql.parser.tree.Query in project ksql by confluentinc.

the class KsqlParserTest method testUDF.

@Test
public void testUDF() throws Exception {
    String queryStr = "SELECT lcase(col1), concat(col2,'hello'), floor(abs(col3)) FROM test1 t1;";
    Statement statement = KSQL_PARSER.buildAst(queryStr, metaStore).get(0);
    Assert.assertTrue("testSelectAll fails", statement instanceof Query);
    Query query = (Query) statement;
    Assert.assertTrue("testSelectAll fails", query.getQueryBody() instanceof QuerySpecification);
    QuerySpecification querySpecification = (QuerySpecification) query.getQueryBody();
    SingleColumn column0 = (SingleColumn) querySpecification.getSelect().getSelectItems().get(0);
    Assert.assertTrue("testProjection fails", column0.getAlias().get().equalsIgnoreCase("KSQL_COL_0"));
    Assert.assertTrue("testProjection fails", column0.getExpression().toString().equalsIgnoreCase("LCASE(T1.COL1)"));
    SingleColumn column1 = (SingleColumn) querySpecification.getSelect().getSelectItems().get(1);
    Assert.assertTrue("testProjection fails", column1.getAlias().get().equalsIgnoreCase("KSQL_COL_1"));
    Assert.assertTrue("testProjection fails", column1.getExpression().toString().equalsIgnoreCase("CONCAT(T1.COL2, 'hello')"));
    SingleColumn column2 = (SingleColumn) querySpecification.getSelect().getSelectItems().get(2);
    Assert.assertTrue("testProjection fails", column2.getAlias().get().equalsIgnoreCase("KSQL_COL_2"));
    Assert.assertTrue("testProjection fails", column2.getExpression().toString().equalsIgnoreCase("FLOOR(ABS(T1.COL3))"));
}

Example 10 with Query

use of io.confluent.ksql.parser.tree.Query in project ksql by confluentinc.

the class KsqlParserTest method testSelectSessionWindow.

@Test
public void testSelectSessionWindow() throws Exception {
    String queryStr = "select itemid, sum(orderunits) from orders window SESSION ( 30 second) where " + "orderunits > 5 group by itemid;";
    Statement statement = KSQL_PARSER.buildAst(queryStr, metaStore).get(0);
    Assert.assertTrue("testSelectSessionWindow failed.", statement instanceof Query);
    Query query = (Query) statement;
    Assert.assertTrue("testSelectSessionWindow failed.", query.getQueryBody() instanceof QuerySpecification);
    QuerySpecification querySpecification = (QuerySpecification) query.getQueryBody();
    Assert.assertTrue("testCreateTable failed.", querySpecification.getSelect().getSelectItems().size() == 2);
    Assert.assertTrue("testSelectSessionWindow failed.", querySpecification.getWhere().get().toString().equalsIgnoreCase("(ORDERS.ORDERUNITS > 5)"));
    Assert.assertTrue("testSelectSessionWindow failed.", ((AliasedRelation) querySpecification.getFrom()).getAlias().equalsIgnoreCase("ORDERS"));
    Assert.assertTrue("testSelectSessionWindow failed.", querySpecification.getWindowExpression().isPresent());
    Assert.assertTrue("testSelectSessionWindow failed.", querySpecification.getWindowExpression().get().toString().equalsIgnoreCase(" WINDOW STREAMWINDOW  SESSION " + "( 30 SECONDS ) "));
}