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Hive QA commented on HIVE-16811: -------------------------------- Here are the results of testing the latest attachment: https://issues.apache.org/jira/secure/attachment/12883978/HIVE-16811.11.patch {color:green}SUCCESS:{color} +1 due to 1 test(s) being added or modified. {color:red}ERROR:{color} -1 due to 6 failed/errored test(s), 11010 tests executed *Failed tests:* {noformat} TestTxnCommandsBase - did not produce a TEST-*.xml file (likely timed out) (batchId=280) org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[insert_values_orig_table_use_metadata] (batchId=61) org.apache.hadoop.hive.cli.TestMiniSparkOnYarnCliDriver.testCliDriver[spark_vectorized_dynamic_partition_pruning] (batchId=169) org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query14] (batchId=234) org.apache.hadoop.hive.cli.TestPerfCliDriver.testCliDriver[query23] (batchId=234) org.apache.hadoop.hive.metastore.TestMetaStoreMetrics.testConnections (batchId=204) {noformat} Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/6564/testReport Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/6564/console Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-6564/ Messages: {noformat} Executing org.apache.hive.ptest.execution.TestCheckPhase Executing org.apache.hive.ptest.execution.PrepPhase Executing org.apache.hive.ptest.execution.ExecutionPhase Executing org.apache.hive.ptest.execution.ReportingPhase Tests exited with: TestsFailedException: 6 tests failed {noformat} This message is automatically generated. ATTACHMENT ID: 12883978 - PreCommit-HIVE-Build > Estimate statistics in absence of stats > --------------------------------------- > > Key: HIVE-16811 > URL: https://issues.apache.org/jira/browse/HIVE-16811 > Project: Hive > Issue Type: Improvement > Reporter: Vineet Garg > Assignee: Vineet Garg > Attachments: HIVE-16811.10.patch, HIVE-16811.11.patch, > HIVE-16811.1.patch, HIVE-16811.2.patch, HIVE-16811.3.patch, > HIVE-16811.4.patch, HIVE-16811.5.patch, HIVE-16811.6.patch, > HIVE-16811.7.patch, HIVE-16811.8.patch, HIVE-16811.9.patch > > > Currently Join ordering completely bails out in absence of statistics and > this could lead to bad joins such as cross joins. > e.g. following select query will produce cross join. > {code:sql} > create table supplier (S_SUPPKEY INT, S_NAME STRING, S_ADDRESS STRING, > S_NATIONKEY INT, > S_PHONE STRING, S_ACCTBAL DOUBLE, S_COMMENT STRING) > CREATE TABLE lineitem (L_ORDERKEY INT, > L_PARTKEY INT, > L_SUPPKEY INT, > L_LINENUMBER INT, > L_QUANTITY DOUBLE, > L_EXTENDEDPRICE DOUBLE, > L_DISCOUNT DOUBLE, > L_TAX DOUBLE, > L_RETURNFLAG STRING, > L_LINESTATUS STRING, > l_shipdate STRING, > L_COMMITDATE STRING, > L_RECEIPTDATE STRING, > L_SHIPINSTRUCT STRING, > L_SHIPMODE STRING, > L_COMMENT STRING) partitioned by (dl > int) > ROW FORMAT DELIMITED > FIELDS TERMINATED BY '|'; > CREATE TABLE part( > p_partkey INT, > p_name STRING, > p_mfgr STRING, > p_brand STRING, > p_type STRING, > p_size INT, > p_container STRING, > p_retailprice DOUBLE, > p_comment STRING > ); > explain select count(1) from part,supplier,lineitem where p_partkey = > l_partkey and s_suppkey = l_suppkey; > {code} > Estimating stats will prevent join ordering algorithm to bail out and come up > with join at least better than cross join -- This message was sent by Atlassian JIRA (v6.4.14#64029)