Github user jihoonson commented on a diff in the pull request:
https://github.com/apache/tajo/pull/1038#discussion_r71061868
--- Diff: tajo-docs/src/main/sphinx/functions/string_func_and_operators.rst
---
@@ -347,82 +347,82 @@ String Functions and Operators
> TAJO
-.. function:: lower(string text)
+.. function:: lower(string TEXT)
Makes an input text to be lower case.
:param string: input string
- :rtype: text
+ :rtype: TEXT
:example:
.. code-block:: sql
select lower('TAJO');
> tajo
-.. function:: lpad(source text, number int4, pad text)
+.. function:: lpad(source TEXT, number INT4, pad TEXT)
--- End diff --
pad can be omitted.
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