[CALCITE-1075] UDF Error of Calcite 1.6

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.6.0
• Assignee: Unassigned
• Reporter: Wei Hu
• Created: 03/Feb/16 02:03
• Updated: 16/Oct/19 03:29

Description

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
...

Issue Links

• is related to: CALCITE-1054 NPE caused by wrong code generation for Timestamp fields
• relates to: CALCITE-1041 User-defined function that returns DATE or TIMESTAMP value