Gabor Kaszab 097f2f3f3b IMPALA-6113: Skip row groups with predicates on NULL columns ...

Based on the existing Parquet column chunk level statistics null_count,
Impala's Parquet scanner is enhanced to skip an entire row group if the
null_count statistics indicate that all the values under the predicated
column are NULL as we wouldn't get any result rows from that row group
anyway.

Change-Id: I141317af0e0df30da8f220b29b0bfba364f40ddf
Reviewed-on: http://gerrit.cloudera.org:8080/9140
Reviewed-by: Tim Armstrong <tarmstrong@cloudera.com>
Tested-by: Impala Public Jenkins

2018-02-03 03:24:37 +00:00

..

AllTypesError

Fix IMP-297

2014-01-08 10:46:44 -08:00

AllTypesErrorNoNulls

Timestamp data type implimentation.

2012-03-22 21:38:18 -07:00

avro_null_char

IMPALA-1136, IMPALA-2161: Skip \u0000 characters when dealing Avro schemas

2015-09-02 00:37:28 +00:00

avro_schema_resolution

IMPALA-4615: Fix create_table.sql command order

2017-03-09 06:00:15 +00:00

bad_avro_snap

IMPALA-4387: validate decimal type in Avro file schema

2016-10-30 00:12:58 +00:00

bad_parquet_data

IMPALA-3745: parquet invalid data handling

2016-06-15 21:33:39 -07:00

bad_seq_snap

Add HdfsLzoTextScanner

2014-01-08 10:46:35 -08:00

bad_text_gzip

Add support for streaming decompression of gzip text

2014-11-23 01:55:55 -08:00

bad_text_lzo

Add HdfsLzoTextScanner

2014-01-08 10:46:35 -08:00

bin

IMPALA-6386: Invalidate metadata at table level for dataload

2018-01-17 22:52:58 +00:00

cluster

IMPALA-6384: RequestPoolService should honor custom group mapping config

2018-01-11 22:52:29 +00:00

common

IMPALA-6068: Scale back fixing functional-types

2017-12-04 23:46:44 +00:00

ComplexTypesTbl

IMPALA-4675: Case-insensitive matching of Parquet fields.

2017-03-03 10:20:07 +00:00

compressed_formats

IMPALA-1619: Support 64-bit allocations.

2016-07-08 15:42:09 -07:00

CustomerMultiBlock

IMPALA-4993: extend dictionary filtering to collections

2018-01-19 20:37:25 +00:00

data

IMPALA-6353: Fix crash in snappy decompressor

2018-01-17 04:18:24 +00:00

datasets

IMPALA-4993: extend dictionary filtering to collections

2018-01-19 20:37:25 +00:00

DimTbl

adding outer joins plus new tests

2011-09-28 09:02:07 -07:00

hive_benchmark

Perf Work:

2011-12-30 00:26:27 -08:00

ImpalaDemoDataset

Test data loading framework improvements

2014-01-08 10:46:49 -08:00

JoinTbl

adding outer joins plus new tests

2011-09-28 09:02:07 -07:00

LikeTbl

Fix null string parsing.

2014-01-08 10:44:40 -08:00

LineItemMultiBlock

IMPALA-2466: Add more tests for the HDFS parquet scanner.

2016-03-25 13:10:15 +00:00

llvm

IMPALA-3918: Remove Cloudera copyrights and add ASF license header

2016-08-09 08:19:41 +00:00

max_nesting_depth

Nested Types: Enforce and test maximum nesting depth of 100.

2015-10-05 11:30:54 -07:00

multi_compression_parquet_data

IMPALA-5448: fix invalid number of splits reported in Parquet scan node

2017-10-10 01:30:33 +00:00

NullTable

IMPALA-13: Use SSE string functions that take an explicit length

2014-04-11 11:16:24 -07:00

parquet_nested_types_encodings

IMPALA-4725: Query option to control Parquet array resolution.

2017-03-09 05:07:44 +00:00

parquet_schema_resolution

IMPALA-3786: Replace "cloudera" with "apache" (part 2)

2016-09-29 21:14:13 +00:00

src/main/java/org/apache/impala/datagenerator

IMPALA-4433: Always generate testdata using the same time zone setting

2016-11-15 04:18:33 +00:00

TableFlattener

Remove unused deps, centralize some pom versions, upgrade SLF4J and commons-io.

2017-12-20 22:04:18 +00:00

TblWithRaggedColumns

IMP-380 handle '\r' at end of row.

2014-01-08 10:46:14 -08:00

TinyIntTable

IMP-232: Parallel INSERT OVERWRITE

2014-01-08 10:45:04 -08:00

TinyTable

When a scan range begins at the starting point fo the tuple, we'll missed that tuple. This patch fixes

2014-01-08 10:44:24 -08:00

tinytable_seq_snap

IMPALA-362: impalad hangs when read sequence file without contents

2014-01-08 10:50:49 -08:00

udfs

IMPALA-4171: Remove JAR from repo.

2016-09-22 02:00:50 +00:00

UnsupportedTypes

IMPALA-3812: Fix error message for unsupported types

2016-11-17 05:31:34 +00:00

workloads

IMPALA-6113: Skip row groups with predicates on NULL columns

2018-02-03 03:24:37 +00:00

__init__.py

CDH-18416: Don't inline ReadWriteUtil::ReadZLong()

2014-04-28 15:58:15 -07:00

.gitignore

Updates several .gitignore files.

2017-08-31 01:40:47 +00:00

pom.xml

Remove unused deps, centralize some pom versions, upgrade SLF4J and commons-io.

2017-12-20 22:04:18 +00:00