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ASF GitHub Bot logged work on HIVE-24154: ----------------------------------------- Author: ASF GitHub Bot Created on: 13/Sep/20 16:03 Start Date: 13/Sep/20 16:03 Worklog Time Spent: 10m Work Description: jcamachor commented on a change in pull request #1492: URL: https://github.com/apache/hive/pull/1492#discussion_r487546716 ########## File path: ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HivePointLookupOptimizerRule.java ########## @@ -734,6 +721,30 @@ private RexNode useStructIfNeeded(List<? extends RexNode> columns) { } operands.remove(i); --i; + } else if (operand.getKind() == SqlKind.EQUALS) { + Constraint c = Constraint.of(operand); + if (c == null || !HiveCalciteUtil.isDeterministic(c.exprNode)) { + continue; + } + String ref = c.exprNode.toString(); + stringToExpr.put(ref, c.exprNode); + if (inLHSExprToRHSExprs.containsKey(ref)) { + String expr = c.constNode.toString(); + stringToExpr.put(expr, c.constNode); Review comment: Makes sense, I will simplify this code. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 483661) Time Spent: 50m (was: 40m) > Missing simplification opportunity with IN and EQUALS clauses > ------------------------------------------------------------- > > Key: HIVE-24154 > URL: https://issues.apache.org/jira/browse/HIVE-24154 > Project: Hive > Issue Type: Improvement > Components: CBO > Reporter: Jesus Camacho Rodriguez > Assignee: Jesus Camacho Rodriguez > Priority: Minor > Labels: pull-request-available > Time Spent: 50m > Remaining Estimate: 0h > > For instance, in perf driver CBO query 74, there are several filters that > could be simplified further: > {code} > HiveFilter(condition=[AND(=($1, 1999), IN($1, 1998, 1999))]) > {code} > This may lead to incorrect estimates and leads to unnecessary execution time. -- This message was sent by Atlassian Jira (v8.3.4#803005)