Examples with AggregateFunctionExpression com.hortonworks.streamline.streams.layout.component.rule.expression.AggregateFunctionExpression used on opensource projects

Example 1 with AggregateFunctionExpression

use of com.hortonworks.streamline.streams.layout.component.rule.expression.AggregateFunctionExpression in project streamline by hortonworks.

the class StormSqlExpressionTest method testGroupByMultipleFields.

@Test
public void testGroupByMultipleFields() throws Exception {
    // SELECT STREAM MIN(SALARY) FROM FOO where ID > 0 GROUP BY DEPTID, EMPID
    Expression min_salary = new AggregateFunctionExpression("MIN", ImmutableList.of(new FieldExpression(Schema.Field.of("salary", Schema.Type.INTEGER))));
    Expression deptid = new FieldExpression(Schema.Field.of("deptid", Schema.Type.INTEGER));
    Expression empid = new FieldExpression(Schema.Field.of("empid", Schema.Type.INTEGER));
    GroupBy groupBy = new GroupBy(ImmutableList.of(deptid, empid));
    Expression id = new FieldExpression(Schema.Field.of("id", Schema.Type.INTEGER));
    Expression id_gt_0 = new BinaryExpression(Operator.GREATER_THAN, id, new Literal("0"));
    Condition condition = new Condition();
    condition.setExpression(id_gt_0);
    Projection projection = new Projection();
    projection.setExpressions(ImmutableList.<Expression>of(min_salary));
    stormSqlExpression = new StormSqlExpression(condition, projection, groupBy, null);
    assertEquals("CREATE EXTERNAL TABLE RULETABLE (\"salary\" INTEGER, \"id\" INTEGER, \"deptid\" INTEGER PRIMARY KEY, " + "\"empid\" INTEGER) LOCATION 'schema:///RULETABLE'", stormSqlExpression.createTable("schema"));
    assertEquals("SELECT STREAM MIN(RULETABLE.\"salary\") FROM RULETABLE WHERE RULETABLE.\"id\" > 0 GROUP BY RULETABLE.\"deptid\",RULETABLE.\"empid\"", stormSqlExpression.select());
}

Example 2 with AggregateFunctionExpression

use of com.hortonworks.streamline.streams.layout.component.rule.expression.AggregateFunctionExpression in project streamline by hortonworks.

the class StormSqlExpressionTest method testCreateSelectProjectGroupBy.

@Test
public void testCreateSelectProjectGroupBy() throws Exception {
    // SELECT STREAM ID, MIN(SALARY) FROM FOO where ID > 0 GROUP BY (ID) HAVING ID > 2 AND MAX(SALARY) > 5
    Expression min_salary = new AggregateFunctionExpression("MIN", ImmutableList.of(new FieldExpression(Schema.Field.of("salary", Schema.Type.INTEGER))));
    Expression max_salary = new AggregateFunctionExpression("MAX", ImmutableList.of(new FieldExpression(Schema.Field.of("salary", Schema.Type.INTEGER))));
    Expression id = new FieldExpression(Schema.Field.of("id", Schema.Type.INTEGER));
    Expression id_gt_0 = new BinaryExpression(Operator.GREATER_THAN, id, new Literal("0"));
    Expression id_gt_2 = new BinaryExpression(Operator.GREATER_THAN, id, new Literal("2"));
    Expression max_salary_gt_5 = new BinaryExpression(Operator.GREATER_THAN, max_salary, new Literal("5"));
    GroupBy groupBy_id = new GroupBy();
    groupBy_id.setExpression(Collections.singletonList(id));
    Having having_id_gt_2 = new Having();
    having_id_gt_2.setExpression(new BinaryExpression(Operator.AND, id_gt_2, max_salary_gt_5));
    Condition condition = new Condition();
    condition.setExpression(id_gt_0);
    Projection projection = new Projection();
    projection.setExpressions(ImmutableList.<Expression>of(id, min_salary));
    stormSqlExpression = new StormSqlExpression(condition, projection, groupBy_id, having_id_gt_2);
    assertEquals("CREATE EXTERNAL TABLE RULETABLE (\"id\" INTEGER PRIMARY KEY, \"salary\" INTEGER) LOCATION 'schema:///RULETABLE'", stormSqlExpression.createTable("schema"));
    assertEquals("SELECT STREAM RULETABLE.\"id\", MIN(RULETABLE.\"salary\") FROM RULETABLE WHERE RULETABLE.\"id\" > 0 GROUP BY RULETABLE.\"id\" HAVING RULETABLE.\"id\" > 2 AND MAX(RULETABLE.\"salary\") > 5", stormSqlExpression.select());
}