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From: paul-rogers <git@git.apache.org>
To: dev@drill.apache.org
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References: <git-pr-666-drill@git.apache.org>
In-Reply-To: <git-pr-666-drill@git.apache.org>
Subject: [GitHub] drill pull request #666: DRILL-4956: Temporary tables support
Content-Type: text/plain
Message-Id: <20161206061226.48ED5EEE2F@git1-us-west.apache.org>
Date: Tue,  6 Dec 2016 06:12:26 +0000 (UTC)
archived-at: Tue, 06 Dec 2016 06:12:30 -0000

Github user paul-rogers commented on a diff in the pull request:

    https://github.com/apache/drill/pull/666#discussion_r90698347
  
    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/planner/sql/handlers/SqlHandlerUtil.java ---
    @@ -235,4 +235,15 @@ public static void unparseSqlNodeList(SqlWriter writer, int leftPrec, int rightP
         writer.keyword(")");
       }
     
    +  /**
    +   * Generates temporary table name using original table and unique identifies.
    +   *
    +   * @param tableName original table name
    +   * @param uuid unique identifier
    +   * @return generated temporary table name
    +   */
    +  public static String generateTemporaryTableName(String tableName, String uuid) {
    --- End diff --
    
    Generates a unique name. But, now the table name on disk will differ from the table name that the user defined. Does the code handle this case: knows to look in a registry to translate from one to the other? Would it be simpler to create a subdirectory with uuid, and put all the tables for a session in that directory with their original name?


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