[HCATALOG-475] Partitioned columns are always returned as type STRING regardless of defined type

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.4
• Component/s: mapreduce
• Assignee: Unassigned
• Reporter: Scott Gray
• Created: 20/Aug/12 19:11
• Updated: 20/Aug/12 19:11

Description

When querying tables partitioned on non-string columns, the value returned from hcatalog is always string. For example, given the following table:

create table part_int (
c1 int,
c2 string
partitioned by (c_part int)
row format delimited
fields terminated by ','
collection items terminated by '|'
map keys terminated by '^'
lines terminated by '\n';
;

When reading from the table, inspecting the HCatRecord that comes back shows the following object types:

java.lang.Integer
java.lang.String
java.lang.String

This happens either with or without an explicitly provided output schema.