| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.phoenix.compile; |
| |
| import static org.apache.phoenix.util.TestUtil.TEST_PROPERTIES; |
| import static org.apache.phoenix.util.TestUtil.and; |
| import static org.apache.phoenix.util.TestUtil.constantComparison; |
| import static org.apache.phoenix.util.TestUtil.or; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.sql.Date; |
| import java.sql.DriverManager; |
| import java.sql.SQLException; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp; |
| import org.apache.hadoop.hbase.filter.Filter; |
| import org.apache.phoenix.execute.AggregatePlan; |
| import org.apache.phoenix.expression.Expression; |
| import org.apache.phoenix.expression.LiteralExpression; |
| import org.apache.phoenix.expression.RowKeyColumnExpression; |
| import org.apache.phoenix.expression.function.CountAggregateFunction; |
| import org.apache.phoenix.expression.function.RoundDateExpression; |
| import org.apache.phoenix.filter.BooleanExpressionFilter; |
| import org.apache.phoenix.jdbc.PhoenixConnection; |
| import org.apache.phoenix.jdbc.PhoenixPreparedStatement; |
| import org.apache.phoenix.query.BaseConnectionlessQueryTest; |
| import org.apache.phoenix.schema.PColumn; |
| import org.apache.phoenix.schema.RowKeyValueAccessor; |
| import org.apache.phoenix.util.PropertiesUtil; |
| import org.apache.phoenix.util.TestUtil; |
| import org.junit.Test; |
| |
| |
| public class HavingCompilerTest extends BaseConnectionlessQueryTest { |
| private static class Expressions { |
| private Expression whereClause; |
| private Expression havingClause; |
| |
| private Expressions(Expression whereClause, Expression havingClause) { |
| this.whereClause = whereClause; |
| this.havingClause = havingClause; |
| } |
| } |
| |
| private static Expressions compileStatement(String query, List<Object> binds) throws SQLException { |
| PhoenixConnection pconn = DriverManager.getConnection(getUrl(), PropertiesUtil.deepCopy(TEST_PROPERTIES)).unwrap(PhoenixConnection.class); |
| PhoenixPreparedStatement pstmt = new PhoenixPreparedStatement(pconn, query); |
| TestUtil.bindParams(pstmt, binds); |
| QueryPlan plan = pstmt.compileQuery(); |
| assertTrue(plan instanceof AggregatePlan); |
| Filter filter = plan.getContext().getScan().getFilter(); |
| assertTrue(filter == null || filter instanceof BooleanExpressionFilter); |
| BooleanExpressionFilter boolFilter = (BooleanExpressionFilter)filter; |
| AggregatePlan aggPlan = (AggregatePlan)plan; |
| return new Expressions(boolFilter == null ? null : boolFilter.getExpression(), aggPlan.getHaving()); |
| } |
| |
| @Test |
| public void testHavingToWhere() throws SQLException { |
| String query = "select count(1) from atable group by a_string having a_string = 'foo'"; |
| List<Object> binds = Collections.emptyList(); |
| Expressions expressions = compileStatement(query,binds); |
| Expression w = constantComparison(CompareOp.EQUAL, A_STRING,"foo"); |
| assertEquals(w, expressions.whereClause); |
| assertNull(expressions.havingClause); |
| } |
| |
| @Test |
| public void testHavingFuncToWhere() throws SQLException { |
| // TODO: confirm that this is a valid optimization |
| String query = "select count(1) from atable group by a_date having round(a_date, 'hour') > ?"; |
| Date date = new Date(System.currentTimeMillis()); |
| List<Object> binds = Arrays.<Object>asList(date); |
| Expressions expressions = compileStatement(query,binds); |
| Expression w = constantComparison(CompareOp.GREATER, RoundDateExpression.create(Arrays.asList(A_DATE,LiteralExpression.newConstant("hour"),LiteralExpression.newConstant(1))), date); |
| assertEquals(w, expressions.whereClause); |
| assertNull(expressions.havingClause); |
| } |
| |
| @Test |
| public void testHavingToAndWhere() throws SQLException { |
| String query = "select count(1) from atable where b_string > 'bar' group by a_string having a_string = 'foo'"; |
| List<Object> binds = Collections.emptyList(); |
| Expressions expressions = compileStatement(query,binds); |
| Expression w = and(constantComparison(CompareOp.GREATER, B_STRING,"bar"),constantComparison(CompareOp.EQUAL, A_STRING,"foo")); |
| assertEquals(w, expressions.whereClause); |
| assertNull(expressions.havingClause); |
| } |
| |
| |
| @Test |
| public void testAndHavingToAndWhere() throws SQLException { |
| String query = "select count(1) from atable where b_string > 'bar' group by a_string having count(1) >= 1 and a_string = 'foo'"; |
| List<Object> binds = Collections.emptyList(); |
| Expressions expressions = compileStatement(query,binds); |
| Expression h = constantComparison(CompareOp.GREATER_OR_EQUAL, new CountAggregateFunction(),1L); |
| Expression w = and(constantComparison(CompareOp.GREATER, B_STRING,"bar"),constantComparison(CompareOp.EQUAL, A_STRING,"foo")); |
| assertEquals(w, expressions.whereClause); |
| assertEquals(h, expressions.havingClause); |
| } |
| |
| @Test |
| public void testAndHavingToWhere() throws SQLException { |
| String query = "select count(1) from atable group by a_string having count(1) >= 1 and a_string = 'foo'"; |
| List<Object> binds = Collections.emptyList(); |
| Expressions expressions = compileStatement(query,binds); |
| Expression h = constantComparison(CompareOp.GREATER_OR_EQUAL, new CountAggregateFunction(),1L); |
| Expression w = constantComparison(CompareOp.EQUAL, A_STRING,"foo"); |
| assertEquals(w, expressions.whereClause); |
| assertEquals(h, expressions.havingClause); |
| } |
| |
| @Test |
| public void testInListHavingToWhere() throws SQLException { |
| String query = "select count(1) from atable group by a_string having a_string in ('foo', 'bar')"; |
| List<Object> binds = Collections.emptyList(); |
| Expressions expressions = compileStatement(query,binds); |
| Expression w = TestUtil.in(A_STRING,"foo","bar"); |
| assertEquals(w, expressions.whereClause); |
| assertNull(expressions.havingClause); |
| } |
| |
| @Test |
| public void testAggFuncInHaving() throws SQLException { |
| String query = "select count(1) from atable group by a_string having count(a_string) >= 1"; |
| List<Object> binds = Collections.emptyList(); |
| Expressions expressions = compileStatement(query,binds); |
| Expression h = constantComparison(CompareOp.GREATER_OR_EQUAL, new CountAggregateFunction(Arrays.asList(A_STRING)),1L); |
| assertNull(expressions.whereClause); |
| assertEquals(h, expressions.havingClause); |
| } |
| |
| @Test |
| public void testOrAggFuncInHaving() throws SQLException { |
| String query = "select count(1) from atable group by a_string having count(1) >= 1 or a_string = 'foo'"; |
| List<Object> binds = Collections.emptyList(); |
| Expressions expressions = compileStatement(query,binds); |
| PColumn aCol = ATABLE.getColumnForColumnName("A_STRING"); |
| Expression h = or( |
| constantComparison(CompareOp.GREATER_OR_EQUAL, new CountAggregateFunction(),1L), |
| constantComparison(CompareOp.EQUAL, |
| new RowKeyColumnExpression(aCol, // a_string comes from group by key in this case |
| new RowKeyValueAccessor(Arrays.<PColumn>asList(aCol), 0)),"foo")); |
| assertNull(expressions.whereClause); |
| assertEquals(h, expressions.havingClause); |
| } |
| |
| @Test |
| public void testAndAggColsInHaving() throws SQLException { |
| String query = "select count(1) from atable group by a_string,b_string having a_string = 'a' and b_string = 'b'"; |
| List<Object> binds = Collections.emptyList(); |
| Expressions expressions = compileStatement(query,binds); |
| Expression w = and(constantComparison(CompareOp.EQUAL, A_STRING,"a"),constantComparison(CompareOp.EQUAL, B_STRING,"b")); |
| assertEquals(w, expressions.whereClause); |
| assertNull(expressions.havingClause); |
| } |
| |
| @Test |
| public void testOrAggColsInHaving() throws SQLException { |
| String query = "select count(1) from atable group by a_string,b_string having a_string = 'a' or b_string = 'b'"; |
| List<Object> binds = Collections.emptyList(); |
| Expressions expressions = compileStatement(query,binds); |
| Expression w = or(constantComparison(CompareOp.EQUAL, A_STRING,"a"),constantComparison(CompareOp.EQUAL, B_STRING,"b")); |
| assertEquals(w, expressions.whereClause); |
| assertNull(expressions.havingClause); |
| } |
| |
| @Test |
| public void testNonAggColInHaving() throws SQLException { |
| String query = "select count(1) from atable group by a_string having b_string = 'bar'"; |
| List<Object> binds = Collections.emptyList(); |
| try { |
| compileStatement(query,binds); |
| fail(); |
| } catch (SQLException e) { |
| assertTrue(e.getMessage(), e.getMessage().contains("ERROR 1019 (42Y26): Only aggregate maybe used in the HAVING clause.")); |
| } |
| } |
| } |