liancheng commented on a change in pull request #24749: [SPARK-27890][SQL]
Improve SQL parser error message for identifier with hyphens
URL: https://github.com/apache/spark/pull/24749#discussion_r289264175
##########
File path:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
##########
@@ -786,6 +790,16 @@ qualifiedName
: identifier ('.' identifier)*
;
+errorCapturingIdentifier
+ : identifier errorCapturingIdentifierExtra
+ ;
+
+// extrq grammer for left refactoring
Review comment:
Typo: extrq => extra
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