[jira] [Created] (IGNITE-8639) Query with a lot of nesting causes NPE in org.h2.util.StringUtils.indent

["Ilya Kasnacheev (JIRA)" <ji...@apache.org>]

Ilya Kasnacheev created IGNITE-8639:
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             Summary: Query with a lot of nesting causes NPE in org.h2.util.StringUtils.indent
                 Key: IGNITE-8639
                 URL: https://issues.apache.org/jira/browse/IGNITE-8639
             Project: Ignite
          Issue Type: Bug
          Components: sql
    Affects Versions: 2.6
            Reporter: Ilya Kasnacheev
         Attachments: SqlNestedQuerySelfTest.java

Worked in 1.7!

But now:
{code}
        sql("WITH cacheJoin (txId, stage, tStamp)" +
              " AS (SELECT t.txId, o.stage, o.tStamp FROM txs t INNER JOIN ops o ON t.txId = o.txId)" +
            " SELECT ou.stage, COUNT(*) as cou, SUM(CASE WHEN ou.stage = in.stage THEN 1 ELSE 0 END) AS ttl" +
              " FROM (SELECT txId, stage FROM cacheJoin cte GROUP BY txId, stage) ou" +
                " INNER JOIN (SELECT mx.txId, mx.stage FROM (SELECT txId, tStamp, stage FROM cacheJoin cte) mx" +
                  " INNER JOIN (SELECT txId, MAX(tStamp) AS maxTStamp FROM cacheJoin cte GROUP BY txId) mix" +
                    " ON mx.txId = mix.txId AND mx.tStamp = mix.maxTStamp) in ON ou.txId = in.txId" +
            " GROUP BY ou.stage");
{code}
{code}
class org.apache.ignite.internal.processors.query.IgniteSQLException: Failed to parse query. Внутренняя ошибка: "java.lang.NullPointerException"
General error: "java.lang.NullPointerException" [50000-195]

	at org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.prepareStatementAndCaches(IgniteH2Indexing.java:2026)
	at org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.parseAndSplit(IgniteH2Indexing.java:1796)
	at org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.querySqlFields(IgniteH2Indexing.java:1652)
	at org.apache.ignite.internal.processors.query.GridQueryProcessor$4.applyx(GridQueryProcessor.java:2035)
	at org.apache.ignite.internal.processors.query.GridQueryProcessor$4.applyx(GridQueryProcessor.java:2030)
	at org.apache.ignite.internal.util.lang.IgniteOutClosureX.apply(IgniteOutClosureX.java:36)
	at org.apache.ignite.internal.processors.query.GridQueryProcessor.executeQuery(GridQueryProcessor.java:2578)
	at org.apache.ignite.internal.processors.query.GridQueryProcessor.querySqlFields(GridQueryProcessor.java:2044)
	at org.apache.ignite.internal.processors.query.GridQueryProcessor.querySqlFields(GridQueryProcessor.java:1990)
	at org.apache.ignite.internal.processors.query.SqlNestedQuerySelfTest.sql(SqlNestedQuerySelfTest.java:73)
	at org.apache.ignite.internal.processors.query.SqlNestedQuerySelfTest.testNestingQuery(SqlNestedQuerySelfTest.java:54)
	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 junit.framework.TestCase.runTest(TestCase.java:176)
	at org.apache.ignite.testframework.junits.GridAbstractTest.runTestInternal(GridAbstractTest.java:2086)
	at org.apache.ignite.testframework.junits.GridAbstractTest.access$000(GridAbstractTest.java:140)
	at org.apache.ignite.testframework.junits.GridAbstractTest$5.run(GridAbstractTest.java:2001)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.h2.jdbc.JdbcSQLException: Внутренняя ошибка: "java.lang.NullPointerException"
General error: "java.lang.NullPointerException" [50000-195]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
	at org.h2.message.DbException.get(DbException.java:168)
	at org.h2.message.DbException.convert(DbException.java:295)
	at org.h2.message.DbException.toSQLException(DbException.java:268)
	at org.h2.message.TraceObject.logAndConvert(TraceObject.java:352)
	at org.h2.jdbc.JdbcConnection.prepareStatement(JdbcConnection.java:292)
	at org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.prepare0(IgniteH2Indexing.java:484)
	at org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.prepareStatement(IgniteH2Indexing.java:452)
	at org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.prepareStatement(IgniteH2Indexing.java:419)
	at org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.prepareStatementAndCaches(IgniteH2Indexing.java:2008)
	... 19 more
Caused by: java.lang.NullPointerException
	at org.h2.util.StringUtils.indent(StringUtils.java:594)
	at org.h2.util.StringUtils.indent(StringUtils.java:582)
	at org.h2.table.TableView.getSQL(TableView.java:436)
	at org.h2.command.dml.Select.getPlanSQL(Select.java:1083)
	at org.h2.index.ViewIndex.getPlanSQL(ViewIndex.java:134)
	at org.h2.table.TableFilter.getPlanSQL(TableFilter.java:861)
	at org.h2.command.dml.Select.getPlanSQL(Select.java:1103)
	at org.h2.index.ViewIndex.getQuery(ViewIndex.java:397)
	at org.h2.index.ViewIndex.<init>(ViewIndex.java:104)
	at org.h2.table.TableView.getBestPlanItem(TableView.java:248)
	at org.h2.table.TableFilter.getBestPlanItem(TableFilter.java:221)
	at org.h2.table.Plan.calculateCost(Plan.java:123)
	at org.h2.command.dml.Optimizer.testPlan(Optimizer.java:185)
	at org.h2.command.dml.Optimizer.calculateBestPlan(Optimizer.java:81)
	at org.h2.command.dml.Optimizer.optimize(Optimizer.java:244)
	at org.h2.command.dml.Select.preparePlan(Select.java:1002)
	at org.h2.command.dml.Select.prepare(Select.java:865)
	at org.h2.command.Parser.prepareCommand(Parser.java:262)
	at org.h2.engine.Session.prepareLocal(Session.java:573)
	at org.h2.engine.Session.prepareCommand(Session.java:514)
	at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1204)
	at org.h2.jdbc.JdbcPreparedStatement.<init>(JdbcPreparedStatement.java:73)
	at org.h2.jdbc.JdbcConnection.prepareStatement(JdbcConnection.java:288)
	... 23 more
{code}

See attached reproducer!



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