[jira] [Created] (CALCITE-3716) ResultSetMetaData.getTableName should return empty string, not null, when column does not map to a table

[Julian Hyde (Jira)]

Julian Hyde created CALCITE-3716:
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             Summary: ResultSetMetaData.getTableName should return empty 
string, not null, when column does not map to a table
                 Key: CALCITE-3716
                 URL: https://issues.apache.org/jira/browse/CALCITE-3716
             Project: Calcite
          Issue Type: Bug
            Reporter: Julian Hyde


Per the [JDBC 
spec|https://docs.oracle.com/javase/8/docs/api/java/sql/ResultSetMetaData.html#getTableName-int-],
 {{ResultSetMetaData.getTableName}} should return empty string, not null, when 
column does not map to a table. Similarly getCatalogName, getSchemaName, 
getColumnName.



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