[HIVE-12156] expanding view doesn't quote reserved keyword

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.2.1
• Fix Version/s: 2.0.0
• Component/s: Parser

Environment

hadoop 2.7
hive 1.2.1

• Target Version/s: 1.3.0
• Assignee: Pengcheng Xiong
• Reporter: Jay Lee
• Created: 13/Oct/15 06:44
• Updated: 15/Apr/17 00:20
• Resolved: 05/Nov/15 19:32

Description

hive> create table testreserved (data struct<`end`:string, id: string>);
OK
Time taken: 0.274 seconds
hive> create view testreservedview as select data.`end` as data_end, data.id as data_id from testreserved;
OK
Time taken: 0.769 seconds
hive> select data.`end` from testreserved;
OK
Time taken: 1.852 seconds
hive> select data_id from testreservedview;
NoViableAltException(98@[])
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.identifier(HiveParser_IdentifiersParser.java:10858)
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.precedenceFieldExpression(HiveParser_IdentifiersParser.java:6438)
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.precedenceUnaryPrefixExpression(HiveParser_IdentifiersParser.java:6768)
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.precedenceUnarySuffixExpression(HiveParser_IdentifiersParser.java:6828)
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.precedenceBitwiseXorExpression(HiveParser_IdentifiersParser.java:7012)
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.precedenceStarExpression(HiveParser_IdentifiersParser.java:7172)
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.precedencePlusExpression(HiveParser_IdentifiersParser.java:7332)
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.precedenceAmpersandExpression(HiveParser_IdentifiersParser.java:7483)
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.precedenceBitwiseOrExpression(HiveParser_IdentifiersParser.java:7634)
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.precedenceEqualExpression(HiveParser_IdentifiersParser.java:8164)
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.precedenceNotExpression(HiveParser_IdentifiersParser.java:9177)
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.precedenceAndExpression(HiveParser_IdentifiersParser.java:9296)
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.precedenceOrExpression(HiveParser_IdentifiersParser.java:9455)
at org.apache.hadoop.hive.ql.parse.HiveParser_IdentifiersParser.expression(HiveParser_IdentifiersParser.java:6105)
at org.apache.hadoop.hive.ql.parse.HiveParser.expression(HiveParser.java:45840)
at org.apache.hadoop.hive.ql.parse.HiveParser_SelectClauseParser.selectItem(HiveParser_SelectClauseParser.java:2907)
at org.apache.hadoop.hive.ql.parse.HiveParser_SelectClauseParser.selectList(HiveParser_SelectClauseParser.java:1373)
at org.apache.hadoop.hive.ql.parse.HiveParser_SelectClauseParser.selectClause(HiveParser_SelectClauseParser.java:1128)
at org.apache.hadoop.hive.ql.parse.HiveParser.selectClause(HiveParser.java:45827)
at org.apache.hadoop.hive.ql.parse.HiveParser.selectStatement(HiveParser.java:41495)
at org.apache.hadoop.hive.ql.parse.HiveParser.regularBody(HiveParser.java:41402)
at org.apache.hadoop.hive.ql.parse.HiveParser.queryStatementExpressionBody(HiveParser.java:40413)
at org.apache.hadoop.hive.ql.parse.HiveParser.queryStatementExpression(HiveParser.java:40283)
at org.apache.hadoop.hive.ql.parse.HiveParser.execStatement(HiveParser.java:1590)
at org.apache.hadoop.hive.ql.parse.HiveParser.statement(HiveParser.java:1109)
at org.apache.hadoop.hive.ql.parse.ParseDriver.parse(ParseDriver.java:202)
...
FAILED: SemanticException line 1:29 cannot recognize input near 'end' 'as' 'data_end' in expression specification in definition of VIEW testreservedview [
select `testreserved`.`data`.end as `data_end`, `testreserved`.`data`.id as `data_id` from `test`.`testreserved`
] used as testreservedview at Line 1:20

When view is expanded, field should be quote with backquote.

Issue Links

• breaks: HIVE-12785 View with union type and UDF to `cast` the struct is broken
• is related to: HIVE-6617 Reduce ambiguity in grammar
• links to: RB