[jira] [Created] (HIVE-10190) CBO: AST mode checks for TABLESAMPLE with AST.toString().contains("TOK_TABLESPLITSAMPLE")

[Gopal V (JIRA)]

Gopal V created HIVE-10190:
------------------------------

             Summary: CBO: AST mode checks for TABLESAMPLE with 
AST.toString().contains("TOK_TABLESPLITSAMPLE")
                 Key: HIVE-10190
                 URL: https://issues.apache.org/jira/browse/HIVE-10190
             Project: Hive
          Issue Type: Bug
          Components: CBO
    Affects Versions: 1.2.0
            Reporter: Gopal V
            Assignee: Laljo John Pullokkaran
            Priority: Trivial


{code}
public static boolean validateASTForUnsupportedTokens(ASTNode ast) {
    String astTree = ast.toStringTree();
    // if any of following tokens are present in AST, bail out
    String[] tokens = { "TOK_CHARSETLITERAL", "TOK_TABLESPLITSAMPLE" };
    for (String token : tokens) {
      if (astTree.contains(token)) {
        return false;
      }
    }
    return true;
  }
{code}

This is an issue for a SQL query which is bigger in AST form than in text 
(~700kb).



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