Critical Description
Looks like dynamic-partitioning is broken with 0.3. This is a regression from 0.2.
Consider 2 tables (say source_search_Uberwald and target_search_Uberwald) with identical schemas and the following 4 partition keys:
datestamp string None
srcid string None
action string None
testid string None
Consider the following Pig script (run on 0.9.2)
a = load 'source_search_Uberwald' using org.apache.hcatalog.pig.HCatLoader();
b = filter a by ( datestamp == '20091102' );
store b into 'target_search_Uberwald' using org.apache.hcatalog.pig.HCatStorer('srcid=191740');
One would expect that the target table would now have partitions corresponding to each partition in the source table (where the srcid is as specified).
What one sees, however, is one of two symptoms:
1. In addition to expected partitions on target, there's at least one more partition, with all dynamic-part-vals set to "HIVE_DEFAULT_PARTITION", or
2. No new partitions on target table. However, the target table's directory has subdirectories named "action=_HIVE_DEFAULT_PARTITION_", etc.