[DRILL-4941] UnsupportedOperationException : CASE WHEN true or null then 1 else 0 end

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: Execution - Flow
• Assignee: Serhii Harnyk
• Reporter: Khurram Faraaz
• Created: 12/Oct/16 11:21
• Updated: 09/Dec/16 10:24
• Resolved: 09/Dec/16 10:24

Description

Below case expression results in UnsupportedOperationException on Drill 1.9.0 git commit ID: 4edabe7a

0: jdbc:drill:schema=dfs.tmp> SELECT (CASE WHEN true or null then 1 else 0 end) from (VALUES(1));
Error: VALIDATION ERROR: class org.apache.calcite.sql.SqlLiteral: NULL

SQL Query null

[Error Id: 822ec7b0-3630-478c-b82a-0acedc39a560 on centos-01.qa.lab:31010] (state=,code=0)

-- changing null to "not null" in the search condition causes Drill to return results

0: jdbc:drill:schema=dfs.tmp> SELECT (CASE WHEN true or not null then 1 else 0 end) from (VALUES(1));
+---------+
| EXPR$0  |
+---------+
| 1       |
+---------+
1 row selected (0.11 seconds)

Stack trace from drillbit.log

Caused by: java.lang.UnsupportedOperationException: class org.apache.calcite.sql.SqlLiteral: NULL
        at org.apache.calcite.util.Util.needToImplement(Util.java:920) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.validate.SqlValidatorImpl.getValidatedNodeType(SqlValidatorImpl.java:1426) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.SqlBinaryOperator.adjustType(SqlBinaryOperator.java:103) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.SqlOperator.deriveType(SqlOperator.java:511) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.SqlBinaryOperator.deriveType(SqlBinaryOperator.java:143) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:4337) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:4324) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:130) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.validate.SqlValidatorImpl.deriveTypeImpl(SqlValidatorImpl.java:1501) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.validate.SqlValidatorImpl.deriveType(SqlValidatorImpl.java:1484) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.fun.SqlCaseOperator.checkOperandTypes(SqlCaseOperator.java:178) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.SqlOperator.validateOperands(SqlOperator.java:430) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.fun.SqlCaseOperator.deriveType(SqlCaseOperator.java:164) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:4337) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:4324) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:130) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.validate.SqlValidatorImpl.deriveTypeImpl(SqlValidatorImpl.java:1501) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.validate.SqlValidatorImpl.deriveType(SqlValidatorImpl.java:1484) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]
        at org.apache.calcite.sql.validate.SqlValidatorImpl.expandSelectItem(SqlValidatorImpl.java:446) ~[calcite-core-1.4.0-drill-r18.jar:1.4.0-drill-r18]