Remus Rusanu created CALCITE-1738:
-------------------------------------
Summary: Support CAST in filters pushed to Druid
Key: CALCITE-1738
URL: https://issues.apache.org/jira/browse/CALCITE-1738
Project: Calcite
Issue Type: Improvement
Components: druid
Reporter: Remus Rusanu
Assignee: Remus Rusanu
Because HIVE-16027 forced an implicit CAST on queries like {{WHERE <
<timestampcolumn> IN ('<literal', '<literal>')}}, IN filters are no longer
pushed down to Druid. In this call stack:
{{noformat}}
org.apache.calcite.adapter.druid.DruidDateTimeUtils.literalValue(DruidDateTimeUtils.java:246)
at
org.apache.calcite.adapter.druid.DruidDateTimeUtils.leafToRanges(DruidDateTimeUtils.java:227)
at
org.apache.calcite.adapter.druid.DruidDateTimeUtils.extractRanges(DruidDateTimeUtils.java:120)
at
org.apache.calcite.adapter.druid.DruidDateTimeUtils.createInterval(DruidDateTimeUtils.java:65)
at
org.apache.calcite.adapter.druid.DruidRules$DruidFilterRule.onMatch(DruidRules.java:186)
at
org.apache.calcite.plan.AbstractRelOptPlanner.fireRule(AbstractRelOptPlanner.java:317)
at org.apache.calcite.plan.hep.HepPlanner.applyRule(HepPlanner.java:506)
at
org.apache.calcite.plan.hep.HepPlanner.applyRules(HepPlanner.java:385)
at
org.apache.calcite.plan.hep.HepPlanner.executeInstruction(HepPlanner.java:251)
at
org.apache.calcite.plan.hep.HepInstruction$RuleInstance.execute(HepInstruction.java:125)
at
org.apache.calcite.plan.hep.HepPlanner.executeProgram(HepPlanner.java:210)
at
org.apache.calcite.plan.hep.HepPlanner.findBestExp(HepPlanner.java:197)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner$CalcitePlannerAction.hepPlan(CalcitePlanner.java:1790)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner$CalcitePlannerAction.apply(CalcitePlanner.java:1518)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner$CalcitePlannerAction.apply(CalcitePlanner.java:1265)
at org.apache.calcite.tools.Frameworks$1.apply(Frameworks.java:113)
at
org.apache.calcite.prepare.CalcitePrepareImpl.perform(CalcitePrepareImpl.java:1043)
at org.apache.calcite.tools.Frameworks.withPrepare(Frameworks.java:149)
at org.apache.calcite.tools.Frameworks.withPlanner(Frameworks.java:106)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner.logicalPlan(CalcitePlanner.java:1073)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner.getOptimizedAST(CalcitePlanner.java:1089)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner.genOPTree(CalcitePlanner.java:368)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:11119)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:290)
at
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:258)
{{noformat}}
the literalValue only knows how to handle {{RexLiteral}} case. Because of the
CAST, the node is a {{RexCall}}.
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