[HIVE-6327] A few mathematic functions don't take decimal input

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.11.0, 0.12.0
• Fix Version/s: 0.13.0
• Release Note: Wiki updated.
• Assignee: Xuefu Zhang
• Reporter: Xuefu Zhang
• Created: 28/Jan/14 22:27
• Updated: 10/Feb/14 21:33
• Resolved: 04/Feb/14 20:47

Description

A few mathematical functions, such as sin() cos(), etc. don't take decimal as argument.

hive> show tables;
OK
Time taken: 0.534 seconds
hive> create table test(d decimal(5,2));
OK
Time taken: 0.351 seconds
hive> select sin(d) from test;
FAILED: SemanticException [Error 10014]: Line 1:7 Wrong arguments 'd': No matching method for class org.apache.hadoop.hive.ql.udf.UDFSin with (decimal(5,2)). Possible choices: _FUNC_(double)  

HIVE-6246 covers only sign() function. The remaining ones, including sin, cos, tan, asin, acos, atan, exp, ln, log, log10, log2, radians, and sqrt. These are non-generic UDFs.

Issue Links

• is related to: HIVE-6385 UDF degrees() doesn't take decimal as input
• relates to: HIVE-6246 Sign(a) UDF is not supported for decimal type
• relates to: HIVE-2693 Add DECIMAL data type
• links to: https://reviews.apache.org/r/17661/