[GitHub] dilipbiswal commented on issue #23925: [SPARK-27016][SQL][BUILD] Treat all antlr warnings as errors while generating parser from the sql grammar file.

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dilipbiswal commented on issue #23925: [SPARK-27016][SQL][BUILD] Treat all antlr warnings as errors while generating parser from the sql grammar file.
URL: https://github.com/apache/spark/pull/23925#issuecomment-468452507
 
 
   @srowen Hi Sean, need your help here. In my dev environment, when i use maven to build, i get the expected result and the build fails with the following error : 
   ```
   INFO] 
   [INFO] --- antlr4-maven-plugin:4.7.1:antlr4 (default) @ spark-catalyst_2.12 ---
   [INFO] ANTLR 4: Processing source directory /Users/dbiswal/mygit/apache/spark/sql/catalyst/src/main/antlr4
   [INFO] Processing grammar: org/apache/spark/sql/catalyst/parser/SqlBase.g4
   [WARNING] warning(125): org/apache/spark/sql/catalyst/parser/SqlBase.g4:784:90: implicit definition of token SCHEMA in parser
   [WARNING] /Users/dbiswal/mygit/apache/spark/org/apache/spark/sql/catalyst/parser/SqlBase.g4 [784:90]: implicit definition of token SCHEMA in parser
   [ERROR] error(10):  warning treated as error
   [INFO] ------------------------------------------------------------------------
   ```
   However, from jenkins, it uses sbt and the build seems to skip pass this error/warning. Would you know what may be happening and how to fix this ? Appreciate your help.

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