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Posted to issues@calcite.apache.org by "Zhong Yu (JIRA)" <ji...@apache.org> on 2018/04/03 09:45:00 UTC

[jira] [Commented] (CALCITE-2234) Fix java.lang.AssertionError at org.apache.calcite.sql.fun.SqlCastFunction.unparse

    [ https://issues.apache.org/jira/browse/CALCITE-2234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16423759#comment-16423759 ] 

Zhong Yu commented on CALCITE-2234:
-----------------------------------

A follow up bug – in `StandardConvertletTable.expandAvg()`, the cast type is created with `new SqlDataTypeSpec(... avgType.getPrecision() ... )`. However, when avgType is DOUBLE for example, its getPrecision() returns 15, while SqlDataTypeSpec() expects none. This causes problem later when CAST is converted, SqlDataTypeSpec.deriveType() fails at 

{{    } else if (precision >= 0) {}}
{{    assert sqlTypeName.allowsPrecNoScale();}}

> Fix java.lang.AssertionError at org.apache.calcite.sql.fun.SqlCastFunction.unparse 
> -----------------------------------------------------------------------------------
>
>                 Key: CALCITE-2234
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2234
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>            Reporter: jingzhang
>            Assignee: Julian Hyde
>            Priority: Major
>         Attachments: q47.sql
>
>
> When run tpcDs query 47, 57, 63, 53, 89 sql, an AssertionError would be thrown out. The stack is as following.
> {code:java}
> java.lang.AssertionError 
>  at org.apache.calcite.sql.fun.SqlCastFunction.unparse(SqlCastFunction.java:172) 
>  at org.apache.calcite.sql.SqlDialect.unparseCall(SqlDialect.java:332) 
>  at org.apache.calcite.sql.SqlCall.unparse(SqlCall.java:103) 
>  at org.apache.calcite.sql.SqlUtil.unparseBinarySyntax(SqlUtil.java:323) 
>  at org.apache.calcite.sql.SqlSyntax$3.unparse(SqlSyntax.java:65) 
>  at org.apache.calcite.sql.SqlOperator.unparse(SqlOperator.java:332) 
>  at org.apache.calcite.sql.SqlDialect.unparseCall(SqlDialect.java:332) 
>  at org.apache.calcite.sql.SqlCall.unparse(SqlCall.java:103) 
>  at org.apache.calcite.sql.SqlNode.toSqlString(SqlNode.java:152) 
>  at org.apache.calcite.sql.SqlNode.toSqlString(SqlNode.java:158) 
>  at org.apache.calcite.sql.SqlNode.toString(SqlNode.java:125) 
>  at java.lang.String.valueOf(String.java:2994) 
>  at java.lang.StringBuilder.append(StringBuilder.java:131) 
>  at org.apache.calcite.sql2rel.ReflectiveConvertletTable$1.convertCall(ReflectiveConvertletTable.java:90) 
>  at org.apache.calcite.sql2rel.SqlNodeToRexConverterImpl.convertCall(SqlNodeToRexConverterImpl.java:63) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.visit(SqlToRelConverter.java:4684) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.visit(SqlToRelConverter.java:4020) 
>  at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:138) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.convertExpression(SqlToRelConverter.java:4586) 
>  at org.apache.calcite.sql2rel.StandardConvertletTable$AvgVarianceConvertlet.convertCall(StandardConvertletTable.java:1190)
>  at org.apache.calcite.sql2rel.SqlNodeToRexConverterImpl.convertCall(SqlNodeToRexConverterImpl.java:63) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertOver(SqlToRelConverter.java:1891) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.access$1800(SqlToRelConverter.java:215) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.convertExpression(SqlToRelConverter.java:4579) 
>  at org.apache.calcite.sql2rel.StandardConvertletTable$12.convertCall(StandardConvertletTable.java:267) 
>  at org.apache.calcite.sql2rel.SqlNodeToRexConverterImpl.convertCall(SqlNodeToRexConverterImpl.java:63) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.visit(SqlToRelConverter.java:4684) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.visit(SqlToRelConverter.java:4020) 
>  at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:138) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.convertExpression(SqlToRelConverter.java:4586) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.createAggImpl(SqlToRelConverter.java:2862) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertAgg(SqlToRelConverter.java:2710) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectImpl(SqlToRelConverter.java:662) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelect(SqlToRelConverter.java:624) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertQueryRecursive(SqlToRelConverter.java:3084) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2073) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:1965) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertIdentifier(SqlToRelConverter.java:2288) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:1999) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:1953) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2031) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2031) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectImpl(SqlToRelConverter.java:643) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelect(SqlToRelConverter.java:624) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertQueryRecursive(SqlToRelConverter.java:3084) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2073) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:1965) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertIdentifier(SqlToRelConverter.java:2288) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:1999) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:1953) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectImpl(SqlToRelConverter.java:643) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelect(SqlToRelConverter.java:624) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertQueryRecursive(SqlToRelConverter.java:3084) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:560) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertWith(SqlToRelConverter.java:3931) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertQueryRecursive(SqlToRelConverter.java:3098) 
>  at org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:560)
> {code}
>  
>  Because a Cast SqlCall  is created in StandardConvertletTable.expandAvg method, which only contains one operands. That's is volatile with assertion in SqlCastFunction.



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