[jira] [Created] (CALCITE-4548) SqlToRelConverter#convertExpression can not convert SqlNode which has subQuery

["jibiyr (Jira)" <ji...@apache.org>]

jibiyr created CALCITE-4548:
-------------------------------

             Summary: SqlToRelConverter#convertExpression can not convert SqlNode which has subQuery
                 Key: CALCITE-4548
                 URL: https://issues.apache.org/jira/browse/CALCITE-4548
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.26.0
            Reporter: jibiyr


hi community, when I use  *SqlToRelConverter* to convertExpression,I found it does  not registery subQuery before convertExpression, so the convertExpression throw npe.

here is the executable example

 
{code:java}
// code placeholder
CalciterHelper calciterHelper = new CalciterHelper(config);

SqlNode parse = calciterHelper.parseExpression("ID IN (1, 2, 3)");

HashMap<String, RexNode> nameToNodeMap = new HashMap<>();
nameToNodeMap.put("ID",new RexInputRef(0, calciterHelper.getTypeFactory().createSqlType(SqlTypeName.INTEGER)));

final Map<String, RelDataType> nameToTypeMap = new HashMap<>();
for (Map.Entry<String, RexNode> entry : nameToNodeMap.entrySet()) {
  nameToTypeMap.put(entry.getKey(), entry.getValue().getType());
}
SqlValidatorImpl orCreateValidator = calciterHelper.getOrCreateValidator();
orCreateValidator.validateCall((SqlCall) parse,new ParameterScope(orCreateValidator,nameToTypeMap));

SqlToRelConverter orCreateSqlToRelConverter = calciterHelper.getOrCreateSqlToRelConverter();
orCreateSqlToRelConverter.convertExpression(parse,nameToNodeMap);
{code}
 

 

and the npe,

 
{code:java}
// code placeholder
Exception in thread "main" java.lang.NullPointerExceptionException in thread "main" java.lang.NullPointerException 

at java.util.Objects.requireNonNull(Objects.java:203) 

at org.apache.calcite.sql2rel.SqlToRelConverter$Blackboard.convertExpression(SqlToRelConverter.java:4914)
{code}
 

 



--
This message was sent by Atlassian Jira
(v8.3.4#803005)