[
https://issues.apache.org/jira/browse/CALCITE-1075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15130833#comment-15130833
]
Julian Hyde commented on CALCITE-1075:
--------------------------------------
This might be related to CALCITE-1054, but it's not possible to check without a
test case. Can you provide a patch with a test case?
> UDF Error of Calcite 1.6
> -------------------------
>
> Key: CALCITE-1075
> URL: https://issues.apache.org/jira/browse/CALCITE-1075
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.6.0
> Reporter: Wei Hu
> Assignee: Julian Hyde
>
> UDF Error In Calcite 1.6, may be Regression bugs?
> schema：Table:hr, A String， B String， C String， D Timestamp
> UDF： DATE_TRUNC（Timestamp D, String X） returns a timestamp value
> there a several regression bugs. 1.5 is ok, but 1.6 will throw exception:
> 1. UDF in Group_by clause,
> sql：select min(m0), max(m0) from (select DATE_TRUNC(D, 'month') as d1,
> COUNT(A) as m0 from \"hr\" group by DATE_TRUNC(D, 'month'))
> Error Stack：
> Caused by: java.lang.ClassCastException: java.sql.Timestamp cannot be cast to
> java.lang.Long
> at Baz$2.apply(Unknown Source)
> at Baz$2.apply(Unknown Source)
> at
> org.apache.calcite.linq4j.EnumerableDefaults.groupBy_(EnumerableDefaults.java:821)
> at
> org.apache.calcite.linq4j.EnumerableDefaults.groupBy(EnumerableDefaults.java:754)
> at
> org.apache.calcite.linq4j.DefaultEnumerable.groupBy(DefaultEnumerable.java:302)
> at Baz.bind(Unknown Source)
> at
> org.apache.calcite.jdbc.CalcitePrepare$CalciteSignature.enumerable(CalcitePrepare.java:326)
> at
> org.apache.calcite.jdbc.CalciteConnectionImpl.enumerable(CalciteConnectionImpl.java:281)
> at
> org.apache.calcite.jdbc.CalciteMetaImpl._createIterable(CalciteMetaImpl.java:545)
> at
> org.apache.calcite.jdbc.CalciteMetaImpl.createIterable(CalciteMetaImpl.java:536)
> at
> org.apache.calcite.avatica.AvaticaResultSet.execute(AvaticaResultSet.java:187)
> at
> org.apache.calcite.jdbc.CalciteResultSet.execute(CalciteResultSet.java:65)
> at
> org.apache.calcite.jdbc.CalciteResultSet.execute(CalciteResultSet.java:44)
> at
> org.apache.calcite.avatica.AvaticaConnection$1.execute(AvaticaConnection.java:566)
> at
> org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:578)
> at
> org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:571)
> at
> org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:135)
> ... 2 more
>
>
> 2. select UDF
> sql: select D, DATE_TRUNC(D, 'month') from \"hr\" group by D
> throw exception when call resultSet.getTimestamp(1)
> Error stack:
> Exception in thread "main" java.lang.ClassCastException: java.sql.Timestamp
> cannot be cast to java.lang.Number
> at
> org.apache.calcite.avatica.util.AbstractCursor$NumberAccessor.getNumber(AbstractCursor.java:696)
> at
> org.apache.calcite.avatica.util.AbstractCursor$TimestampFromNumberAccessor.getTimestamp(AbstractCursor.java:958)
> at
> org.apache.calcite.avatica.AvaticaResultSet.getTimestamp(AvaticaResultSet.java:285)
> at testPs.TestPs.main(TestPs.java:150)
>
> 3. UDFs with same name and different arg types
> UDF： DATE_TRUNC（Timestamp D, String x） returns a timestamp value
> DATE_TRUNC(Date D, String x) returns a date value
>
> sql: select D, DATE_TRUNC(D, 'month') from \"hr\" group by D
> Error stack：
> Caused by: org.apache.calcite.runtime.CalciteContextException: From line 1,
> column 11 to line 1, column 32: Cannot apply 'DATE_TRUNC' to arguments of
> type 'DATE_TRUNC(<TIMESTAMP(0)>, <CHAR(5)>)'. Supported form(s):
> 'DATE_TRUNC(<DATE>, <CHARACTER>)'
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
> at
> org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:405)
> at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:715)
> at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:703)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.newValidationError(SqlValidatorImpl.java:3932)
> at
> org.apache.calcite.sql.SqlCallBinding.newValidationSignatureError(SqlCallBinding.java:275)
> at
> org.apache.calcite.sql.type.FamilyOperandTypeChecker.checkSingleOperandType(FamilyOperandTypeChecker.java:92)
> at
> org.apache.calcite.sql.type.FamilyOperandTypeChecker.checkOperandTypes(FamilyOperandTypeChecker.java:109)
> at
> org.apache.calcite.sql.SqlOperator.checkOperandTypes(SqlOperator.java:564)
> at
> org.apache.calcite.sql.SqlOperator.validateOperands(SqlOperator.java:421)
> at
> org.apache.calcite.sql.SqlDATE_TRUNCtion.deriveType(SqlDATE_TRUNCtion.java:342)
> at
> org.apache.calcite.sql.SqlDATE_TRUNCtion.deriveType(SqlDATE_TRUNCtion.java:230)
> at org.apache.calcite.sql.validate.SqlValidatorImpl
> ...
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
