Github user jihoonson commented on a diff in the pull request:
https://github.com/apache/tajo/pull/1038#discussion_r71061850
--- Diff: tajo-docs/src/main/sphinx/functions/math_func_and_operators.rst
---
@@ -179,115 +179,120 @@ Math Functions and Operators
Returns constant value of pi
- :rtype: float8
+ :rtype: FLOAT8
:example:
.. code-block:: sql
select pi();
> 3.141592653589793
-.. function:: pow (x float, y float)
+.. function:: pow (x FLOAT*, y FLOAT*)
Returns value of x raised to the power of y
:param x: base number
:param y: exponent
- :rtype: float8
+ :rtype: FLOAT8
:example:
.. code-block:: sql
select pow(2.0, 10.0);
> 1024.0
-.. function:: radians (number float)
+.. function:: radians (number FLOAT*)
Converts degrees to radians
:param number: degree value
- :rtype: float8
+ :rtype: FLOAT8
:example:
.. code-block:: sql
select radians(45.0);
> 0.7853981633974483
-.. function:: random(number int4)
+.. function:: random(number INT4)
Returns a pseudorandom number.
:param number: range restriction
- :rtype: int4
+ :rtype: INT4
:example:
.. code-block:: sql
select random(10);
> 4
-.. function:: round (number int|float)
+.. function:: round (number INT*|FLOAT*)
Rounds to nearest integer
:param number: target number
- :rtype: int8
+ :rtype: INT8
:example:
.. code-block:: sql
select round(5.1);
> 5
-.. function:: sign (number int|float)
+.. function:: sign (number INT*|FLOAT*)
Returns sign of argument as -1, 0, 1
:param number: target number
- :rtype: float8
+ :rtype: FLOAT8
:example:
.. code-block:: sql
select sign(-8.4);
> -1.0
-.. function:: sin (number float)
+.. function:: SIN (number FLOAT*)
--- End diff --
The function name seems to be lowercase.
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