[HIVE-17032] HPL/SQL Comparisons are only supported with strings and integers

• Type: Bug
• Status: Patch Available
• Priority: Critical
• Resolution: Unresolved
• Component/s: hpl/sql
• Assignee: Dmitry Tolpeko
• Reporter: Carter Shanklin
• Created: 04/Jul/17 21:21
• Updated: 10/Sep/17 23:12

Description

This bug is part of a series of issues and surprising behavior I encountered writing a reporting script that would aggregate values and give rows different classifications based on an the aggregate. Addressing some or all of these issues would make HPL/SQL more accessible to newcomers.

In Var.java:

  public int compareTo(Var v) {
    if (this == v) {
      return 0;
    }
    else if (v == null) {
      return -1;
    }
    else if (type == Type.BIGINT && v.type == Type.BIGINT) {
      return ((Long)value).compareTo((Long)v.value);
    }
    else if (type == Type.STRING && v.type == Type.STRING) {
      return ((String)value).compareTo((String)v.value);
    }
    return -1;
  }

It's surprising that comparisons with doubles and decimals (for example) don't work as expected.

Version = 3.0.0-SNAPSHOT r71f52d8ad512904b3f2c4f04fe39a33f2834f1f2