Can you reproduce with an empty table? I can't reproduce it. Also, can you paste the stack trace? Yong
From: krishnanj...@gmail.com Date: Thu, 27 Feb 2014 12:44:28 +0000 Subject: Hive query parser bug resulting in "FAILED: NullPointerException null" To: user@hive.apache.org Hi all, we've experienced a bug which seems to be caused by having a query constraint involving partitioned columns. The following query results in "FAILED: NullPointerException null" being returned nearly instantly: EXPLAIN SELECT col1FROM tbl1WHERE(part_col1 = 2014 AND part_col2 >= 2)OR part_col1 < 2014; The exception doesn't happen if any of the conditions are removed. The table is defined like the following: CREATE TABLE tbl1 ( col1 STRING, ... col12 STRING)PARTITIONED BY (part_col1 INT, part_col2 TINYINT, part_col3 TINYINT)STORED AS SEQUENCEFILE; Unfortunately I cannot construct a test case to replicate this. Seen as though it appears to be a query parser bug, I thought the following would replicate it: CREATE TABLE tbl2 LIKE tbl1;EXPLAIN SELECT col1FROM tbl2WHERE(part_col1 = 2014 AND part_col2 >= 2)OR part_col1 < 2014; But it does not. Could it somehow be data specific? Does the query parser use partition information? Are there any logs I could see to investigate this further? Or is this a known bug? We're using hive 0.10.0-cdh4.4.0. Cheers, Krishna
