wecharyu commented on code in PR #3360:
URL: https://github.com/apache/hive/pull/3360#discussion_r899205805
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parser/src/java/org/apache/hadoop/hive/ql/parse/HiveParser.g:
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@@ -1613,10 +1613,10 @@ resourceType
createFunctionStatement
@init { pushMsg("create function statement", state); }
@after { popMsg(state); }
- : KW_CREATE (temp=KW_TEMPORARY)? KW_FUNCTION functionIdentifier KW_AS
StringLiteral
+ : KW_CREATE (temp=KW_TEMPORARY)? KW_FUNCTION orReplace? ifNotExists?
functionIdentifier KW_AS StringLiteral
Review Comment:
@nrg4878 The reason I use "create function or replace" is that “create or
replace" can only be used for one statement, I will get error like below when I
use "create or replace function":
```bash
org.apache.hadoop.hive.ql.parse.ParseException: line 3:18 mismatched input
'function' expecting KW_VIEW near 'replace' in create view statement
```
I am not sure if `antlr3` does not support this syntax in two statements, if
you have any idea please let me know.
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