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The Hive HBase spec specifies that the key column mapping can either be defined explicitly (using the :key syntax) or left out completely in which case a mapping to the first table column is implied. This change updates Impala to support implicit key mappings and also adds some checks in our ALTER TABLE DDL to unsure we cannot get into this state by dropping a column from an Hbase table (a similar restriction that Hive puts in place) Change-Id: I920d642261659ee3e881da2553ffe83300923af8 Reviewed-on: http://gerrit.ent.cloudera.com:8080/554 Reviewed-by: Lenni Kuff <lskuff@cloudera.com> Tested-by: Lenni Kuff <lskuff@cloudera.com>
This directory contains Impala test data sets. The directory layout is structured as follows: datasets/ <data set>/<data set>_schema_template.sql <data set>/<data files SF1>/data files <data set>/<data files SF2>/data files Where SF is the scale factor controlling data size. This allows for scaling the same schema to different sizes based on the target test environment.