[GitHub] [shardingsphere] arungopalan commented on issue #18078: Handling of star in select statement

[GitBox <gi...@apache.org>]

arungopalan commented on issue #18078:
URL: https://github.com/apache/shardingsphere/issues/18078#issuecomment-1141545395

   
   
   
   See code below that can reproduce this. This produces no error but it should.
   
   ```
   package com.somepackage;
   
   import org.antlr.v4.runtime.CharStreams;
   import org.antlr.v4.runtime.CommonTokenStream;
   import org.antlr.v4.runtime.ParserRuleContext;
   import org.antlr.v4.runtime.tree.ErrorNode;
   import org.antlr.v4.runtime.tree.ParseTreeListener;
   import org.antlr.v4.runtime.tree.ParseTreeWalker;
   import org.antlr.v4.runtime.tree.TerminalNode;
   import org.apache.shardingsphere.sql.parser.postgresql.parser.PostgreSQLLexer;
   import org.apache.shardingsphere.sql.parser.postgresql.parser.PostgreSQLParser;
   
   /**
    * Hello world!
    *
    */
   public class App 
   {
       public static void main( String[] args )
       {
           String query = "select * as ab from some_table";
           PostgreSQLLexer postgreSQLLexer = new PostgreSQLLexer(CharStreams.fromString(query));
           PostgreSQLParser postgreSQLParser = new PostgreSQLParser(new CommonTokenStream(postgreSQLLexer));
           ParseTreeWalker parseTreeWalker = new ParseTreeWalker();
   
           parseTreeWalker.walk(new ParseTreeListener() {
   
               @Override
               public void visitTerminal(TerminalNode node) {
                   System.out.println("Terminal [" + node.getText() + "]");               
               }
   
               @Override
               public void visitErrorNode(ErrorNode node) {
                   System.out.println("Error [" + node + "]");               
               }
   
               @Override
               public void enterEveryRule(ParserRuleContext ctx) {
                   // System.out.println("Entering [" + ctx + "]");
                   
               }
   
               @Override
               public void exitEveryRule(ParserRuleContext ctx) {
                   // System.out.println("Exiting [" + ctx.getText() + "]");
               }
               
           }, postgreSQLParser.execute());
       }
   }
   ```


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