Samuel Waggoner created CALCITE-2152:
----------------------------------------
Summary: SQL parser unable to parse SQL produced by
RelToSqlConverter
Key: CALCITE-2152
URL: https://issues.apache.org/jira/browse/CALCITE-2152
Project: Calcite
Issue Type: Bug
Reporter: Samuel Waggoner
Assignee: Julian Hyde
I created this test case in RelToSqlConverterTest
```
@Test
public void testNestedJoin() {
final String query = "select *"
+ "from \"sales_fact_1997\" "
+ "inner join (select * from \"customer\""
+ "inner join \"employee\" on (\"customer\".\"city\" =
\"employee\".\"store_id\") ) AS \"customer_employee\""
+ "on (\"sales_fact_1997\".\"store_id\" = \"customer_employee\".\"city\")";
String result = sql(query).exec();
System.out.println(result);
sql(result).exec();
}
```
result looks like this:
```SELECT *
FROM "foodmart"."sales_fact_1997"
INNER JOIN ("foodmart"."customer"
INNER JOIN "foodmart"."employee" ON "customer"."city" = "employee"."store_id")
ON "sales_fact_1997"."store_id" = "customer"."city"```
Stack Trace is:
```
java.lang.RuntimeException: org.apache.calcite.sql.parser.SqlParseException:
Non-query expression encountered in illegal context
at
org.apache.calcite.rel.rel2sql.RelToSqlConverterTest$Sql.exec(RelToSqlConverterTest.java:2420)
at
org.apache.calcite.rel.rel2sql.RelToSqlConverterTest.testNestedJoin(RelToSqlConverterTest.java:2314)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at
com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: org.apache.calcite.sql.parser.SqlParseException: Non-query
expression encountered in illegal context
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.convertException(SqlParserImpl.java:350)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.normalizeException(SqlParserImpl.java:131)
at org.apache.calcite.sql.parser.SqlParser.parseQuery(SqlParser.java:138)
at org.apache.calcite.sql.parser.SqlParser.parseStmt(SqlParser.java:163)
at org.apache.calcite.prepare.PlannerImpl.parse(PlannerImpl.java:179)
at
org.apache.calcite.rel.rel2sql.RelToSqlConverterTest$Sql.exec(RelToSqlConverterTest.java:2407)
... 23 more
Caused by: org.apache.calcite.runtime.CalciteException: Non-query expression
encountered in illegal context
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:463)
at org.apache.calcite.runtime.Resources$ExInst.ex(Resources.java:572)
at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:803)
at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:788)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.checkNonQueryExpression(SqlParserImpl.java:294)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.Expression3(SqlParserImpl.java:3323)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.Expression2b(SqlParserImpl.java:3069)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.Expression2(SqlParserImpl.java:3095)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.Expression(SqlParserImpl.java:3048)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.LeafQueryOrExpr(SqlParserImpl.java:3030)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.QueryOrExpr(SqlParserImpl.java:2952)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.OrderedQueryOrExpr(SqlParserImpl.java:466)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.ParenthesizedExpression(SqlParserImpl.java:586)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.TableRef2(SqlParserImpl.java:1812)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.TableRef(SqlParserImpl.java:1756)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.FromClause(SqlParserImpl.java:1668)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.SqlSelect(SqlParserImpl.java:918)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.LeafQuery(SqlParserImpl.java:555)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.LeafQueryOrExpr(SqlParserImpl.java:3033)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.QueryOrExpr(SqlParserImpl.java:2952)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.OrderedQueryOrExpr(SqlParserImpl.java:466)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.SqlStmt(SqlParserImpl.java:844)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.SqlStmtEof(SqlParserImpl.java:872)
at
org.apache.calcite.sql.parser.impl.SqlParserImpl.parseSqlStmtEof(SqlParserImpl.java:187)
at org.apache.calcite.sql.parser.SqlParser.parseQuery(SqlParser.java:131)
... 26 more
```
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