[PIG-3085] Errors and lacks in document "Built In Functions"

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.10.0
• Fix Version/s: 0.12.0
• Component/s: documentation
• Labels: documentation
• Patch Info: Patch Available
• Assignee: MIYAKAWA Taku
• Reporter: MIYAKAWA Taku
• Created: 09/Dec/12 09:55
• Updated: 14/Oct/13 16:46
• Resolved: 15/Dec/12 20:34

Description

This is a patch to fix errors in document "Built In Functions".

1. Heading of the result table of ROUND function is wrongly written as CEIL(x)
2. "Syntax" clause of LAST_INDEX_OF function is wrongly written as LAST_INDEX_OF(expression), but the function actually takes three arguments
3. "Syntax" clause of REGEX_EXTRACT_ALL function is wrongly written as REGEX_EXTRACT (string, regex)
4. An example of REPLACE function is terminated by a semicolon: REPLACE(string,'software','wiki');, but the semicolon is not necessary in Pig Latin syntax
5. "limit" argument of STRSPLIT function is described as The number of times the pattern ... is applied. But actually, limit-1 is the maximum number of times the pattern is applied, and "limit" means the maximum length of the result tuple (if the value is positive). If the value is 0 or negative, not limit is applied.
6. An example program of TOP function does not work, because it uses COUNT(*)
7. Updates links to pages in the Java API Reference
8. Fixes typos
   • "COUNT_STAR is used the to count ..."
   • "delimit in JsonLoader or JsonStorer JsonStorage ..."
   • "using field deliminters delimiters ..."
   • "If you store reading using delimiter "#" ..."
   • "The STORE function statement specifies that the files ..."
   • "Limit" -> "limit" in a term definition of STRSPLIT function