korlov42 commented on a change in pull request #9276: URL: https://github.com/apache/ignite/pull/9276#discussion_r694938144
########## File path: modules/calcite/src/test/java/org/apache/ignite/internal/processors/query/calcite/planner/StatisticsPlannerTest.java ########## @@ -0,0 +1,424 @@ +/* + * 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.ignite.internal.processors.query.calcite.planner; + +import java.sql.Date; +import java.sql.Time; +import java.sql.Timestamp; +import java.util.Arrays; +import java.util.HashMap; +import java.util.HashSet; +import java.util.Set; +import org.apache.calcite.rel.RelCollations; +import org.apache.calcite.rel.type.RelDataType; +import org.apache.calcite.rel.type.RelDataTypeFactory; +import org.apache.calcite.rel.type.RelDataTypeField; +import org.apache.calcite.util.ImmutableIntList; +import org.apache.ignite.internal.processors.query.calcite.metadata.ColocationGroup; +import org.apache.ignite.internal.processors.query.calcite.rel.IgniteIndexScan; +import org.apache.ignite.internal.processors.query.calcite.rel.IgniteRel; +import org.apache.ignite.internal.processors.query.calcite.schema.IgniteIndex; +import org.apache.ignite.internal.processors.query.calcite.schema.IgniteSchema; +import org.apache.ignite.internal.processors.query.calcite.schema.IgniteStatisticsImpl; +import org.apache.ignite.internal.processors.query.calcite.trait.IgniteDistributions; +import org.apache.ignite.internal.processors.query.calcite.type.IgniteTypeFactory; +import org.apache.ignite.internal.processors.query.calcite.type.IgniteTypeSystem; +import org.apache.ignite.internal.processors.query.h2.opt.GridH2Table; +import org.apache.ignite.internal.processors.query.stat.ColumnStatistics; +import org.apache.ignite.internal.processors.query.stat.ObjectStatisticsImpl; +import org.h2.value.ValueBoolean; +import org.h2.value.ValueByte; +import org.h2.value.ValueDate; +import org.h2.value.ValueDouble; +import org.h2.value.ValueFloat; +import org.h2.value.ValueInt; +import org.h2.value.ValueLong; +import org.h2.value.ValueShort; +import org.h2.value.ValueString; +import org.h2.value.ValueTime; +import org.h2.value.ValueTimestamp; +import org.junit.Before; +import org.junit.Test; + +/** + * Statistic related simple tests. + */ +public class StatisticsPlannerTest extends AbstractPlannerTest { + /** */ + private IgniteTypeFactory f = new IgniteTypeFactory(IgniteTypeSystem.INSTANCE); + + /** */ + private static final Date MIN_DATE = Date.valueOf("1980-04-09"); + + /** */ + private static final Date MAX_DATE = Date.valueOf("2020-04-09"); + + /** */ + private static final Time MIN_TIME = Time.valueOf("09:00:00"); + + /** */ + private static final Time MAX_TIME = Time.valueOf("21:59:59"); + + /** */ + private static final Timestamp MIN_TIMESTAMP = Timestamp.valueOf("1980-04-09 09:00:00"); + + /** */ + private static final Timestamp MAX_TIMESTAMP = Timestamp.valueOf("2020-04-09 21:59:59"); + + /** */ + private RelDataType tbl1rt; + + private Set<String> tbl1NumericFields = new HashSet<>(); + + /** Base table with all types. */ + private TestTable tbl1; + + /** Equal to tbl1 with some complex indexes. */ + private TestTable tbl4; + + /** */ + private IgniteSchema publicSchema; + + /** */ + private IgniteStatisticsImpl tbl1stat; + + /** {@inheritDoc} */ + @Before + @Override public void setup() { + super.setup(); + + ColocationGroup colocation = ColocationGroup.forAssignments(Arrays.asList( + select(nodes, 0, 1), + select(nodes, 1, 2), + select(nodes, 2, 0), + select(nodes, 0, 1), + select(nodes, 1, 2) + )); + + int t1rc = 1000; + + tbl1NumericFields.addAll(Arrays.asList("T1C1INT", "T1C3DBL", "T1C4BYTE", "T1C7SHORT", "T1C8LONG", "T1C9FLOAT")); + + tbl1rt = new RelDataTypeFactory.Builder(f) + .add("T1C1INT", f.createJavaType(Integer.class)) + .add("T1C2STR", f.createJavaType(String.class)) + .add("T1C3DBL", f.createJavaType(Double.class)) + .add("T1C4BYTE", f.createJavaType(Byte.class)) + .add("T1C5BOOLEAN", f.createJavaType(Boolean.class)) + .add("T1C6CHARACTER", f.createJavaType(Character.class)) + .add("T1C7SHORT", f.createJavaType(Short.class)) + .add("T1C8LONG", f.createJavaType(Long.class)) + .add("T1C9FLOAT", f.createJavaType(Float.class)) + .add("T1C10DATE", f.createJavaType(Date.class)) + .add("T1C11TIME", f.createJavaType(Time.class)) + .add("T1C12TIMESTAMP", f.createJavaType(Timestamp.class)) + .build(); + + tbl1 = new TestTable(tbl1rt) + .setDistribution(IgniteDistributions.affinity(0, "TBL1", "hash")); + + tbl1.addIndex(new IgniteIndex(RelCollations.of(0), "PK", null, tbl1)); + + for (RelDataTypeField field : tbl1rt.getFieldList()) { + if (field.getIndex() == 0) + continue; + + int idx = field.getIndex(); + String name = getIdxName(1, field.getName().toUpperCase()); + + tbl1.addIndex(new IgniteIndex(RelCollations.of(idx), name, null, tbl1)); + } + + tbl4 = new TestTable(tbl1rt) + .setDistribution(IgniteDistributions.affinity(0, "TBL4", "hash")); + tbl4.addIndex(new IgniteIndex(RelCollations.of(0), "PK", null, tbl1)); + + for (RelDataTypeField field : tbl1rt.getFieldList()) { + if (field.getIndex() == 0) + continue; + + int idx = field.getIndex(); + String name = getIdxName(4, field.getName().toUpperCase()); + + tbl4.addIndex(new IgniteIndex(RelCollations.of(idx), name, null, tbl4)); + } + + tbl4.addIndex(new IgniteIndex(RelCollations.of(ImmutableIntList.of(6, 7)), "TBL4_SHORT_LONG", null, tbl4)); + + HashMap<String, ColumnStatistics> colStat1 = new HashMap<>(); + colStat1.put("T1C1INT", new ColumnStatistics(ValueInt.get(1), ValueInt.get(1000), + 0, 1000, t1rc, 4, null, 1, 0)); + + colStat1.put("T1C2STR", new ColumnStatistics(ValueString.get("A1"), ValueString.get("Z9"), + 100, 20, t1rc, 2, null, 1, 0)); + + colStat1.put("T1C3DBL", new ColumnStatistics(ValueDouble.get(0.01), ValueDouble.get(0.99), + 10, 1000, t1rc, 8, null, 1, 0)); + + colStat1.put("T1C4BYTE", new ColumnStatistics(ValueByte.get((byte)0), ValueByte.get((byte)255), + 10, 1000, t1rc, 8, null, 1, 0)); + + colStat1.put("T1C5BOOLEAN", new ColumnStatistics(ValueBoolean.get(false), ValueBoolean.get(true), + 0, 2, t1rc, 1, null, 1, 0)); + + colStat1.put("T1C6CHARACTER", new ColumnStatistics(ValueString.get("A"), ValueString.get("Z"), + 10, 10, t1rc, 1, null, 1, 0)); + + colStat1.put("T1C7SHORT", new ColumnStatistics(ValueShort.get((short)1), ValueShort.get((short)5000), + 110, 500, t1rc, 2, null, 1, 0)); + + colStat1.put("T1C8LONG", new ColumnStatistics(ValueLong.get(1L), ValueLong.get(100000L), + 10, 100000, t1rc, 8, null, 1, 0)); + + colStat1.put("T1C9FLOAT", new ColumnStatistics(ValueFloat.get((float)0.1), ValueFloat.get((float)0.9), + 10, 1000, t1rc, 8, null, 1, 0)); + + colStat1.put("T1C10DATE", new ColumnStatistics(ValueDate.get(MIN_DATE), ValueDate.get(MAX_DATE), + 20, 1000, t1rc, 8, null, 1, 0)); + + colStat1.put("T1C11TIME", new ColumnStatistics(ValueTime.get(MIN_TIME), ValueTime.get(MAX_TIME), + 10, 1000, t1rc, 8, null, 1, 0)); + + colStat1.put("T1C12TIMESTAMP", new ColumnStatistics(ValueTimestamp.get(MIN_TIMESTAMP), ValueTimestamp.get(MAX_TIMESTAMP), + 20, 1000, t1rc, 8, null, 1, 0)); + + tbl1stat = new IgniteStatisticsImpl(new ObjectStatisticsImpl(1000, colStat1)); + + publicSchema = new IgniteSchema("PUBLIC"); + + publicSchema.addTable("TBL1", tbl1); + publicSchema.addTable("TBL4", tbl4); + } + + /** + * Check index usage with and without statistics: + * + * 1) With statistics planner choose second one with better selectivity. + * 2) Without statistics planner choose first one. + * + * @throws Exception In case of error. + */ + @Test + public void testIndexChoosing() throws Exception { + tbl1.setStatistics(tbl1stat); + + String sql = "select * from TBL1 where t1c7short > 5 and t1c8long > 55555"; + + IgniteRel phys = physicalPlan(sql, publicSchema); + IgniteIndexScan idxScan = findFirstNode(phys, byClass(IgniteIndexScan.class)); + + assertNotNull(idxScan); + assertEquals("TBL1_T1C8LONG", idxScan.indexName()); + + tbl1.setStatistics(new IgniteStatisticsImpl((GridH2Table)null)); + + IgniteRel phys2 = physicalPlan(sql, publicSchema); + IgniteIndexScan idxScan2 = findFirstNode(phys2, byClass(IgniteIndexScan.class)); + + assertNotNull(idxScan2); + assertEquals("TBL1_T1C7SHORT", idxScan2.indexName()); + + tbl1.setStatistics(tbl1stat); + } + + /** + * Check index choosing with is null condition. Due to AbstractIndexScan logic - no index should be choosen. + */ + @Test + public void testIsNull() throws Exception { + tbl1.setStatistics(tbl1stat); + + String isNullTemplate = "select * from TBL1 where %s is null"; + String isNullPKTemplate = "select * from TBL1 where %s is null and T1C1INT is null"; + + for (RelDataTypeField field : tbl1rt.getFieldList()) { + if (field.getIndex() == 0) + continue; + + if (tbl1NumericFields.contains(field.getName())) { + String isNullSql = String.format(isNullTemplate, field.getName()); + String isNullPKSql = String.format(isNullPKTemplate, field.getName()); + + String idxName = getIdxName(1, field.getName().toUpperCase()); + + checkIdxNotUsed(isNullSql, idxName); + checkIdxNotUsed(isNullPKSql, idxName); + } + } + } + + /** + * Chech index choosing with not null condition. Due to AbstractIndexScan logic - no index should be choosen. + */ + @Test + public void testNotNull() throws Exception { + tbl1.setStatistics(tbl1stat); + + String isNullTemplate = "select * from TBL1 where %s is not null"; + String isNullPKTemplate = "select * from TBL1 where %s is not null and T1C1INT is null"; + + for (RelDataTypeField field : tbl1rt.getFieldList()) { + if (field.getIndex() == 0) + continue; + + if (tbl1NumericFields.contains(field.getName())) { + String isNullSql = String.format(isNullTemplate, field.getName()); + String isNullPKSql = String.format(isNullPKTemplate, field.getName()); + + String idxName = getIdxName(1, field.getName().toUpperCase()); + + checkIdxNotUsed(isNullSql, idxName); + checkIdxNotUsed(isNullPKSql, idxName); + } + } + } + + /** + * Test borders with statistics and check that correct index used. + * @throws Exception In case of errors. + */ + @Test + public void testBorders() throws Exception { Review comment: this test fails every time -- This is an automated message from the Apache Git Service. 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