Details

Type: Improvement

Status: Resolved

Priority: Major

Resolution: Fixed

Affects Version/s: 0.11.0, 0.12.0

Fix Version/s: 0.13.0

Component/s: None

Labels:None

Release Note:Wiki updated.
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)
HIVE6246 covers only sign() function. The remaining ones, including sin, cos, tan, asin, acos, atan, exp, ln, log, log10, log2, radians, and sqrt. These are nongeneric UDFs.
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Maybe the function signature matching for nongeneric UDFs should allow decimal args to be converted to double for these UDFs? Would be a more general fix as opposed to having to patch each of these UDFs.