[HIVE-17028] Casting strings to integers in HPL/SQL differs from Hive behavior

• Type: Bug
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Component/s: hpl/sql
• Assignee: Dmitry Tolpeko
• Reporter: Carter Shanklin
• Created: 04/Jul/17 21:21
• Updated: 06/Sep/17 17:57

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 HPL/SQL: cast('10.0' as integer); results in:
Unhandled exception in HPL/SQL
java.lang.NumberFormatException: For input string: "10.0"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Long.parseLong(Long.java:589)
at java.lang.Long.parseLong(Long.java:631)
at org.apache.hive.hplsql.Var.cast(Var.java:181)

In Hive:
hive> select cast('10.0' as integer);
10
Time taken: 4.563 seconds, Fetched: 1 row(s)
hive> select cast('10.3' as integer);
10