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https://issues.apache.org/jira/browse/PHOENIX-2295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14945380#comment-14945380
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Alicia Ying Shu commented on PHOENIX-2295:
------------------------------------------
Attached patch.
> NullPointerException when parsing a query with hints in UNION ALL
> -----------------------------------------------------------------
>
> Key: PHOENIX-2295
> URL: https://issues.apache.org/jira/browse/PHOENIX-2295
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.4.0
> Environment: Linux, phoenix phoenix-4.4.0-HBase-1.1
> Reporter: Gasper Metelko
> Assignee: Alicia Ying Shu
> Attachments: PHOENIX-2295.patch
>
>
> On the following db objects:
> CREATE TABLE table1 (
> id BIGINT,
> col1 VARCHAR,
> col2 VARCHAR,
> CONSTRAINT pk PRIMARY KEY (id)) IMMUTABLE_ROWS=true;
>
> CREATE TABLE table2 (
> id BIGINT,
> col1 VARCHAR,
> col2 VARCHAR,
> CONSTRAINT pk PRIMARY KEY (id)) IMMUTABLE_ROWS=true;
>
> CREATE INDEX INDEX_TABLE1_COL ON table1 (col1);
>
> CREATE INDEX INDEX_TABLE2_COL ON table2 (col1);
> explain SELECT /*+ INDEX(table1 INDEX_TABLE1_COL) */ col1, col2 FROM table1
> WHERE col1='123' UNION ALL SELECT /*+ INDEX(table2 INDEX_TABLE2_COL) */ col1,
> col2 FROM table2 WHERE col1='123';
> On running the above statement there is a NPE:
> java.lang.NullPointerException
> at java.util.ArrayList.addAll(ArrayList.java:559)
> at
> org.apache.phoenix.iterate.UnionResultIterators.<init>(UnionResultIterators.java:51)
> at org.apache.phoenix.execute.UnionPlan.iterator(UnionPlan.java:131)
> at org.apache.phoenix.execute.UnionPlan.iterator(UnionPlan.java:127)
> at
> org.apache.phoenix.execute.UnionPlan.getExplainPlan(UnionPlan.java:150)
> at
> org.apache.phoenix.jdbc.PhoenixStatement$ExecutableExplainStatement.compilePlan(PhoenixStatement.java:424)
> at
> org.apache.phoenix.jdbc.PhoenixStatement$ExecutableExplainStatement.compilePlan(PhoenixStatement.java:403)
> at
> org.apache.phoenix.jdbc.PhoenixStatement$1.call(PhoenixStatement.java:246)
> at
> org.apache.phoenix.jdbc.PhoenixStatement$1.call(PhoenixStatement.java:241)
> at org.apache.phoenix.call.CallRunner.run(CallRunner.java:53)
> at
> org.apache.phoenix.jdbc.PhoenixStatement.executeQuery(PhoenixStatement.java:240)
> at
> org.apache.phoenix.jdbc.PhoenixStatement.execute(PhoenixStatement.java:1250)
> at sqlline.Commands.execute(Commands.java:822)
> at sqlline.Commands.sql(Commands.java:732)
> at sqlline.SqlLine.dispatch(SqlLine.java:808)
> at sqlline.SqlLine.begin(SqlLine.java:681)
> at sqlline.SqlLine.start(SqlLine.java:398)
> at sqlline.SqlLine.main(SqlLine.java:292)
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