[EAGLE-333] Hive ql.Parser can't parse complex query

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: v0.3.0, v0.4.0
• Fix Version/s: v0.4.0
• Assignee: Unassigned
• Reporter: Yuming Wang
• Created: 08/Jun/16 15:30
• Updated: 02/Jul/16 05:41
• Resolved: 27/Jun/16 10:25

Description

For example, parse following query:

 SELECT count(distinct id) FROM db.table1

will throw NullPointerException:

java.lang.NullPointerException
at org.apache.eagle.security.hive.ql.Parser.addToColumnSet(Parser.java:356)
at org.apache.eagle.security.hive.ql.Parser.parseSelectExpr(Parser.java:285)
at org.apache.eagle.security.hive.ql.Parser.parseSelectExpr(Parser.java:327)
at org.apache.eagle.security.hive.ql.Parser.parseSelectClause(Parser.java:277)
at org.apache.eagle.security.hive.ql.Parser.parseInsertClause(Parser.java:218)
at org.apache.eagle.security.hive.ql.Parser.parseQueryClause(Parser.java:194)
at org.apache.eagle.security.hive.ql.Parser.parseQL(Parser.java:117)
at org.apache.eagle.security.hive.ql.Parser.run(Parser.java:81)
at org.apache.eagle.security.hive.ql.TestParser._testParsingQuery(TestParser.java:44)
at org.apache.eagle.security.hive.ql.TestParser.testCountDistinct(TestParser.java:245)

The root cause is ASTNode is TOK_FUNCTIONDI type at this time, so use parseTokFunction() to parse it.

Issue Links

• links to: GitHub Pull Request #230