MD-741: Cannot select array elements by index in MapR-DB JSON Tables
Project: http://git-wip-us.apache.org/repos/asf/drill/repo Commit: http://git-wip-us.apache.org/repos/asf/drill/commit/8844a73e Tree: http://git-wip-us.apache.org/repos/asf/drill/tree/8844a73e Diff: http://git-wip-us.apache.org/repos/asf/drill/diff/8844a73e Branch: refs/heads/master Commit: 8844a73eff13115dc0a6b7a01720ace99e06797c Parents: 6988254 Author: Aditya <adi...@mapr.com> Authored: Thu Feb 25 02:34:30 2016 -0800 Committer: Aditya Kishore <a...@apache.org> Committed: Fri Sep 9 10:08:37 2016 -0700 ---------------------------------------------------------------------- .../maprdb/json/MaprDBJsonRecordReader.java | 34 ++++++++++-- .../drill/maprdb/tests/json/BaseJsonTest.java | 23 ++++++++ .../drill/maprdb/tests/json/TestSimpleJson.java | 58 +++++++++++++------- .../src/test/resources/json/business.json | 20 +++---- 4 files changed, 99 insertions(+), 36 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/drill/blob/8844a73e/contrib/format-maprdb/src/main/java/org/apache/drill/exec/store/maprdb/json/MaprDBJsonRecordReader.java ---------------------------------------------------------------------- diff --git a/contrib/format-maprdb/src/main/java/org/apache/drill/exec/store/maprdb/json/MaprDBJsonRecordReader.java b/contrib/format-maprdb/src/main/java/org/apache/drill/exec/store/maprdb/json/MaprDBJsonRecordReader.java index 42944f5..0f01662 100644 --- a/contrib/format-maprdb/src/main/java/org/apache/drill/exec/store/maprdb/json/MaprDBJsonRecordReader.java +++ b/contrib/format-maprdb/src/main/java/org/apache/drill/exec/store/maprdb/json/MaprDBJsonRecordReader.java @@ -24,10 +24,12 @@ import java.util.Collection; import java.util.Iterator; import java.util.List; import java.util.Set; +import java.util.Stack; import java.util.concurrent.TimeUnit; import org.apache.drill.common.exceptions.ExecutionSetupException; import org.apache.drill.common.exceptions.UserException; +import org.apache.drill.common.expression.PathSegment; import org.apache.drill.common.expression.SchemaPath; import org.apache.drill.exec.ops.FragmentContext; import org.apache.drill.exec.ops.OperatorContext; @@ -45,8 +47,9 @@ import org.ojai.DocumentReader; import org.ojai.DocumentReader.EventType; import org.ojai.DocumentStream; import org.ojai.FieldPath; -import org.ojai.store.QueryCondition; +import org.ojai.FieldSegment; import org.ojai.Value; +import org.ojai.store.QueryCondition; import com.google.common.base.Preconditions; import com.google.common.base.Stopwatch; @@ -111,18 +114,17 @@ public class MaprDBJsonRecordReader extends AbstractRecordReader { * document when only _id is requested. */ // projectedFieldsList.add(ID_FIELD); - transformed.add(ID_PATH); includeId = true; } else { - transformed.add(SchemaPath.getSimplePath(column.getRootSegment().getPath())); - projectedFieldsSet.add(FieldPath.parseFrom(column.getAsUnescapedPath())); + projectedFieldsSet.add(getFieldPathForProjection(column)); } + transformed.add(column); } if (projectedFieldsSet.size() > 0) { projectedFields = projectedFieldsSet.toArray(new FieldPath[projectedFieldsSet.size()]); } } else { - transformed.add(ID_PATH); + transformed.add(AbstractRecordReader.STAR_COLUMN); includeId = true; } @@ -388,6 +390,28 @@ public class MaprDBJsonRecordReader extends AbstractRecordReader { } } + /* + * Extracts contiguous named segments from the SchemaPath, starting from the + * root segment and build the FieldPath from it for projection. + * + * This is due to bug 22726 and 22727, which cause DB's DocumentReaders to + * behave incorrectly for sparse lists, hence we avoid projecting beyond the + * first encountered ARRAY field and let Drill handle the projection. + */ + private static FieldPath getFieldPathForProjection(SchemaPath column) { + Stack<PathSegment.NameSegment> pathSegments = new Stack<PathSegment.NameSegment>(); + PathSegment seg = column.getRootSegment(); + while (seg != null && seg.isNamed()) { + pathSegments.push((PathSegment.NameSegment) seg); + seg = seg.getChild(); + } + FieldSegment.NameSegment child = null; + while (!pathSegments.isEmpty()) { + child = new FieldSegment.NameSegment(pathSegments.pop().getPath(), child, false); + } + return new FieldPath(child); + } + @Override public void close() { if (documentStream != null) { http://git-wip-us.apache.org/repos/asf/drill/blob/8844a73e/contrib/format-maprdb/src/test/java/com/mapr/drill/maprdb/tests/json/BaseJsonTest.java ---------------------------------------------------------------------- diff --git a/contrib/format-maprdb/src/test/java/com/mapr/drill/maprdb/tests/json/BaseJsonTest.java b/contrib/format-maprdb/src/test/java/com/mapr/drill/maprdb/tests/json/BaseJsonTest.java index 5e10528..6aafed3 100644 --- a/contrib/format-maprdb/src/test/java/com/mapr/drill/maprdb/tests/json/BaseJsonTest.java +++ b/contrib/format-maprdb/src/test/java/com/mapr/drill/maprdb/tests/json/BaseJsonTest.java @@ -17,9 +17,14 @@ */ package com.mapr.drill.maprdb.tests.json; +import java.util.List; + import org.apache.drill.BaseTestQuery; +import org.apache.drill.exec.exception.SchemaChangeException; +import org.apache.drill.exec.rpc.user.QueryDataBatch; import org.apache.drill.hbase.GuavaPatcher; import org.junit.AfterClass; +import org.junit.Assert; import org.junit.BeforeClass; import com.mapr.drill.maprdb.tests.MaprDBTestsSuite; @@ -44,4 +49,22 @@ public class BaseJsonTest extends BaseTestQuery { MaprDBTestsSuite.cleanupTests(); } + + protected List<QueryDataBatch> runHBaseSQLlWithResults(String sql) throws Exception { + System.out.println("Running query:\n" + sql); + return testSqlWithResults(sql); + } + + protected void runSQLAndVerifyCount(String sql, int expectedRowCount) throws Exception{ + List<QueryDataBatch> results = runHBaseSQLlWithResults(sql); + printResultAndVerifyRowCount(results, expectedRowCount); + } + + private void printResultAndVerifyRowCount(List<QueryDataBatch> results, int expectedRowCount) throws SchemaChangeException { + int rowCount = printResult(results); + if (expectedRowCount != -1) { + Assert.assertEquals(expectedRowCount, rowCount); + } + } + } http://git-wip-us.apache.org/repos/asf/drill/blob/8844a73e/contrib/format-maprdb/src/test/java/com/mapr/drill/maprdb/tests/json/TestSimpleJson.java ---------------------------------------------------------------------- diff --git a/contrib/format-maprdb/src/test/java/com/mapr/drill/maprdb/tests/json/TestSimpleJson.java b/contrib/format-maprdb/src/test/java/com/mapr/drill/maprdb/tests/json/TestSimpleJson.java index 84a73ce..b74b1c5 100644 --- a/contrib/format-maprdb/src/test/java/com/mapr/drill/maprdb/tests/json/TestSimpleJson.java +++ b/contrib/format-maprdb/src/test/java/com/mapr/drill/maprdb/tests/json/TestSimpleJson.java @@ -17,15 +17,22 @@ */ package com.mapr.drill.maprdb.tests.json; -import java.util.List; +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertNotNull; +import static org.junit.Assert.assertNull; import org.apache.drill.PlanTestBase; +import org.apache.drill.SingleRowListener; import org.apache.drill.exec.exception.SchemaChangeException; +import org.apache.drill.exec.proto.UserBitShared.QueryType; +import org.apache.drill.exec.record.RecordBatchLoader; import org.apache.drill.exec.rpc.user.QueryDataBatch; -import org.junit.Assert; +import org.apache.drill.exec.util.VectorUtil; import org.junit.Test; import org.junit.experimental.categories.Category; +import org.ojai.Document; +import com.mapr.db.MapRDB; import com.mapr.tests.annotations.ClusterTest; @Category(ClusterTest.class) @@ -45,13 +52,39 @@ public class TestSimpleJson extends BaseJsonTest { public void testPushdownStringEqual() throws Exception { setColumnWidths(new int[] {25, 40, 40, 40}); final String sql = "SELECT\n" - + " _id, name, categories, full_address\n" + + " _id, name, business.hours.Monday.`open`, categories[1], years[2], full_address\n" + "FROM\n" + " hbase.`business` business\n" + "WHERE\n" + " name = 'Sprint'" ; - runSQLAndVerifyCount(sql, 1); + + final Document queryResult = MapRDB.newDocument(); + SingleRowListener listener = new SingleRowListener() { + @Override + protected void rowArrived(QueryDataBatch result) { + try { + final RecordBatchLoader loader = new RecordBatchLoader(getAllocator()); + loader.load(result.getHeader().getDef(), result.getData()); + StringBuilder sb = new StringBuilder(); + VectorUtil.appendVectorAccessibleContent(loader, sb, "|", false); + loader.clear(); + queryResult.set("result", sb.toString()); + } catch (SchemaChangeException e) { + queryResult.set("error", "true"); + } + } + }; + testWithListener(QueryType.SQL, sql, listener); + listener.waitForCompletion(); + + assertNull(queryResult.getString("error")); + assertNotNull(queryResult.getString("result")); + + String[] fields = queryResult.getString("result").split("\\|"); + assertEquals("1970-01-01T11:00:00.000", fields[2]); + assertEquals("Mobile Phones", fields[3]); + assertEquals("2016.0", fields[4]); final String[] expectedPlan = {"condition=\\(name = \"Sprint\"\\)"}; final String[] excludedPlan = {}; @@ -349,21 +382,4 @@ public class TestSimpleJson extends BaseJsonTest { } */ - protected List<QueryDataBatch> runHBaseSQLlWithResults(String sql) throws Exception { - System.out.println("Running query:\n" + sql); - return testSqlWithResults(sql); - } - - protected void runSQLAndVerifyCount(String sql, int expectedRowCount) throws Exception{ - List<QueryDataBatch> results = runHBaseSQLlWithResults(sql); - printResultAndVerifyRowCount(results, expectedRowCount); - } - - private void printResultAndVerifyRowCount(List<QueryDataBatch> results, int expectedRowCount) throws SchemaChangeException { - int rowCount = printResult(results); - if (expectedRowCount != -1) { - Assert.assertEquals(expectedRowCount, rowCount); - } - } - } http://git-wip-us.apache.org/repos/asf/drill/blob/8844a73e/contrib/format-maprdb/src/test/resources/json/business.json ---------------------------------------------------------------------- diff --git a/contrib/format-maprdb/src/test/resources/json/business.json b/contrib/format-maprdb/src/test/resources/json/business.json index 1121aa3..0010ea1 100644 --- a/contrib/format-maprdb/src/test/resources/json/business.json +++ b/contrib/format-maprdb/src/test/resources/json/business.json @@ -1,10 +1,10 @@ -{"_version":{"$numberLong":0},"business_id":"1emggGHgoG6ipd_RMb-g","full_address":"3280 S Decatur Blvd\nWestside\nLas Vegas, NV 89102","zip":{"$numberLong":89102},"hours":{},"open":true,"categories":["Food","Convenience Stores"],"city":"Las 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