- added PlanNode.numNodes, PlanNode.avgRowSize and PlanNode.computeStats()
- fixing up some cardinality estimates
- Planner now tries to do a cost-based decision between broadcast join and join with full repartitioning (both inputs)
- ExchangeNode now distinguishes between its input and output row descriptor: the output potentially contains more tuples
- fixed problem related to cancellation and concurrent hash table builds.
Not included:
- partitioned joins that take advantage of existing partitions of the inputs; those will have to wait for a follow-on change
Adds support for:
* ALTER TABLE <table> PARTITION (partitionSpec) SET FILEFORMAT
* ALTER TABLE <table> PARTITION (partitionSpec) SET LOCATION
This enables setting the location and fileformat of specific partitions.
This patch adds support for
- ALTER TABLE ADD|REPLACE COLUMNS
- ALTER TABLE DROP COLUMN
- ALTER TABLE ADD/DROP PARTITION
- ALTER TABLE SET FILEFORMAT
- ALTER TABLE SET LOCATION
- ALTER TABLE RENAME
* Changed frontend analysis for HBase tables
* Changed Thrift messages to allow HBase as a sink type.
* JNI Wrapper around htable
* Create hbase-table-sink
* Create hbase-table-writer
* Static init lots of JNI related code for HBase.
* Cleaned up some cpplint issues.
* Changed junit analysis tests
* Create a new HBase test table.
* Added functional tests for HBase inserts.
This patch adds support for the following SQL constructs
- Unary + operator
- The ALL keyword, in SELECT ALL and SELECT aggregate_func(ALL *)
- REAL and INTEGER as type synonyms for DOUBLE and INT respectively
- The AS keyword after a table spec. e.g. SELECT * FROM tbl AS t0
This adds Impala support for CREATE/DROP DATABASE/TABLE. With this change, Impala
supports creating tables in the metastore stored as text, sequence, and rc file format.
It currently only supports creating unpartitioned tables and tables stored in HDFS.
- this adds a SelectNode that evaluates conjuncts and enforces the limit
- all limits are now distributed: enforced both by the child plan fragment and
by the merging ExchangeNode
- all limits w/ Order By are now distributed: enforced both by the child plan fragment and
by the merging TopN node
With this change the Python tests will now be called as part of buildall and
the corresponding Java tests have been disabled. The new tests can also be
invoked calling ./tests/run-tests.sh directly.
This includes a fix from Nong that caused wrong results for limit on non-io
manager formats.
