Github user kaspersorensen commented on a diff in the pull request:
https://github.com/apache/metamodel/pull/20#discussion_r29602798
--- Diff: core/src/test/java/org/apache/metamodel/query/FromItemTest.java
---
@@ -98,4 +105,35 @@ public void testSubQueryJoinToString() throws Exception
{
"MetaModelSchema.project a LEFT JOIN (SELECT
c.contributor_id, c.project_id AS foobar, c.name FROM MetaModelSchema.role c) b
ON a.project_id = b.foobar",
from.toString());
}
+
+ public void testCompoundJoin() {
+ final Schema schema = getExampleSchema();
+
+ final QueryPostprocessDataContext dc = new
QueryPostprocessDataContext() {
+ @Override
+ protected DataSet materializeMainSchemaTable(Table table,
Column[] columns, int maxRows) {
+ Object[] values = new Object[columns.length];
+ for (int i = 0; i < columns.length; i++) {
+ values[i] = columns[i].getColumnNumber();
+ }
+ DataSetHeader header = new SimpleDataSetHeader(columns);
+ DefaultRow row = new DefaultRow(header, values);
+ return new InMemoryDataSet(row);
+ }
+
+ @Override
+ protected String getMainSchemaName() throws MetaModelException
{
+ return "MetaModelSchema";
+ }
+
+ @Override
+ protected Schema getMainSchema() throws MetaModelException {
+ return schema;
+ }
+ };
+
+ Query query = dc.parseQuery("SELECT c.contributor_id,p.project_id
from contributor c INNER JOIN role r ON c.contributor_id=r.contributor_id INNER
JOIN project p ON p.project_id=r.project_id");
+ System.out.println(query);
--- End diff --
Probably a left-over from a debugging session or so, but let's not print to
syso.
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