[
https://issues.apache.org/jira/browse/DRILL-4715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15345300#comment-15345300
]
ASF GitHub Bot commented on DRILL-4715:
---------------------------------------
Github user jinfengni commented on a diff in the pull request:
https://github.com/apache/drill/pull/521#discussion_r68148055
--- Diff: exec/java-exec/src/test/java/org/apache/drill/exec/ExecTest.java
---
@@ -17,17 +17,54 @@
*/
package org.apache.drill.exec;
+import com.codahale.metrics.MetricRegistry;
+import mockit.NonStrictExpectations;
+import org.apache.drill.common.config.DrillConfig;
+import org.apache.drill.common.scanner.ClassPathScanner;
+import org.apache.drill.exec.compile.CodeCompilerTestFactory;
+import org.apache.drill.exec.exception.StoreException;
+import org.apache.drill.exec.memory.RootAllocatorFactory;
import org.apache.drill.exec.metrics.DrillMetrics;
+import org.apache.drill.exec.physical.impl.OperatorCreatorRegistry;
+import org.apache.drill.exec.planner.PhysicalPlanReaderTestFactory;
+import org.apache.drill.exec.server.DrillbitContext;
+import org.apache.drill.exec.server.options.SystemOptionManager;
+import
org.apache.drill.exec.store.sys.store.provider.LocalPersistentStoreProvider;
import org.apache.drill.test.DrillTest;
import org.junit.After;
+import org.junit.BeforeClass;
+
+import static org.apache.drill.exec.RunRootExec.c;
public class ExecTest extends DrillTest {
+ protected static SystemOptionManager optionManager;
+
@After
public void clear(){
// TODO: (Re DRILL-1735) Check whether still needed now that
// BootstrapContext.close() resets the metrics.
DrillMetrics.resetMetrics();
}
+
+ @BeforeClass
+ public static void setupOptionManager() throws Exception{
+ final LocalPersistentStoreProvider provider = new
LocalPersistentStoreProvider(c);
+ provider.start();
+ optionManager = new
SystemOptionManager(PhysicalPlanReaderTestFactory.defaultLogicalPlanPersistence(c),
provider);
+ optionManager.init();
+ }
+
+ protected void initDrillbitContext(final DrillbitContext bitContext)
throws Exception {
--- End diff --
changed.
> Java compilation error for a query with large number of expressions
> -------------------------------------------------------------------
>
> Key: DRILL-4715
> URL: https://issues.apache.org/jira/browse/DRILL-4715
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Codegen
> Reporter: Jinfeng Ni
>
> The following query would hit compilation error, when Drill generates and
> compiles the run-time code.
> Q1 :
> {code}
> select expr1, expr2, expr3, ...., exprN
> from table
> {code}
> In Q1, expr1, expr2, ..., exprN are non-trivial expression (in stead of
> simply column reference), and N is big enough, then the run-time generated
> code may have a method which goes beyond the 64k limit imposed by JVM.
> This seems to be a regression from DRILL-3912 (Common subexpression
> elimination). CSE tries to put as many expressions in one block as possible,
> to detect and eliminate as many CSE as possible. However, this implies we may
> end up with big method with compilation error.
>
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
