[GitHub] [flink] danny0405 commented on a change in pull request #13037: [FLINK-18756][table-api] Support IF NOT EXISTS for CREATE TABLE statement

[GitBox]

danny0405 commented on a change in pull request #13037:
URL: https://github.com/apache/flink/pull/13037#discussion_r463530824



##########
File path: 
flink-table/flink-sql-parser/src/main/codegen/includes/parserImpls.ftl
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@@ -735,6 +736,11 @@ SqlCreate SqlCreateTable(Span s, boolean replace, boolean 
isTemporary) :
 {
     <TABLE>
 
+    [
+        LOOKAHEAD(3)
+        <IF> <NOT> <EXISTS> { ifNotExists = true; }

Review comment:
       We can use `IfNotExistsOpt` parse block directly.




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