commit | 4ba4ab733302e7d5839293c2a556528f60da7f91 | [log] [tgz] |
---|---|---|
author | Kurt Deschler <kdeschle@cloudera.com> | Tue Mar 31 22:35:57 2020 -0500 |
committer | Joe McDonnell <joemcdonnell@cloudera.com> | Fri Apr 03 09:41:20 2020 -0700 |
tree | 6b59a3235008e9e154cb123fe9aa746669f459c8 | |
parent | 8842ccf351c4f7f643e25aa00a9001ee0822e9af [diff] |
IMPALA-9429: Unioned partition columns break partition pruning In the case of a union query where predicates are pushed into the union, predicate Exprs can contain SlotReft that are transformed into constants after analysis and eligible for constant folding. During partition pruning there is a check that eligible constant folding has already occurred which was failing and reporting IllegalStateException since the surrounding code only handles specific cases. This fix adds FoldConstantsRule to the rewriter used by HdfsPartitionPruner.prunePartitions so that pruning predicates have any constants folded as expected. Testing: Testcases added to PlannerTest/union.test based on provided repo using alltypes tables. Change-Id: I1c1384c2cd1ad5f7024449196f9a348ecdccb60b Reviewed-on: http://gerrit.cloudera.org:8080/15371 Reviewed-by: Quanlong Huang <huangquanlong@gmail.com> Reviewed-by: Joe McDonnell <joemcdonnell@cloudera.com> Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com> (cherry picked from commit 3bd5c4aaa2c0ba00856effab83d8cb9bc1e49406)
Lightning-fast, distributed SQL queries for petabytes of data stored in Apache Hadoop clusters.
Impala is a modern, massively-distributed, massively-parallel, C++ query engine that lets you analyze, transform and combine data from a variety of data sources:
To learn more about Impala as a business user, or to try Impala live or in a VM, please visit the Impala homepage.
If you are interested in contributing to Impala as a developer, or learning more about Impala's internals and architecture, visit the Impala wiki.
Impala only supports Linux at the moment.
This distribution uses cryptographic software and may be subject to export controls. Please refer to EXPORT_CONTROL.md for more information.
See bin/bootstrap_build.sh.
Impala can be built with pre-built components or components downloaded from S3. The components needed to build Impala are Apache Hadoop, Hive, HBase, and Sentry. If you need to manually override the locations or versions of these components, you can do so through the environment variables and scripts listed below.
Location | Purpose |
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bin/impala-config.sh | This script must be sourced to setup all environment variables properly to allow other scripts to work |
bin/impala-config-local.sh | A script can be created in this location to set local overrides for any environment variables |
bin/impala-config-branch.sh | A version of the above that can be checked into a branch for convenience. |
bin/bootstrap_build.sh | A helper script to bootstrap some of the build requirements. |
bin/bootstrap_development.sh | A helper script to bootstrap a developer environment. Please read it before using. |
be/build/ | Impala build output goes here. |
be/generated-sources/ | Thrift and other generated source will be found here. |
Environment variable | Default value | Description |
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IMPALA_HOME | Top level Impala directory | |
IMPALA_TOOLCHAIN | “${IMPALA_HOME}/toolchain” | Native toolchain directory (for compilers, libraries, etc.) |
SKIP_TOOLCHAIN_BOOTSTRAP | “false” | Skips downloading the toolchain any python dependencies if “true” |
CDH_BUILD_NUMBER | Identifier to indicate the CDH build number | |
CDH_COMPONENTS_HOME | “${IMPALA_HOME}/toolchain/cdh_components-${CDH_BUILD_NUMBER}” | Location of the CDH components within the toolchain. |
CDH_MAJOR_VERSION | “5” | Identifier used to uniqueify paths for potentially incompatible component builds. |
IMPALA_CONFIG_SOURCED | “1” | Set by ${IMPALA_HOME}/bin/impala-config.sh (internal use) |
JAVA_HOME | “/usr/lib/jvm/${JAVA_VERSION}” | Used to locate Java |
JAVA_VERSION | “java-7-oracle-amd64” | Can override to set a local Java version. |
JAVA | “${JAVA_HOME}/bin/java” | Java binary location. |
CLASSPATH | See bin/set-classpath.sh for details. | |
PYTHONPATH | Will be changed to include: “${IMPALA_HOME}/shell/gen-py” “${IMPALA_HOME}/testdata” “${THRIFT_HOME}/python/lib/python2.7/site-packages” “${HIVE_HOME}/lib/py” “${IMPALA_HOME}/shell/ext-py/prettytable-0.7.1/dist/prettytable-0.7.1” "${IMPALA_HOME}/shell/ext-py/sasl-0.1.1/dist/sasl-0.1.1-py2.7-linux-x "${IMPALA_HOME}/shell/ext-py/sqlparse-0.1.19/dist/sqlparse-0.1.19-py2 |
Environment variable | Default value | Description |
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IMPALA_BE_DIR | “${IMPALA_HOME}/be” | Backend directory. Build output is also stored here. |
IMPALA_FE_DIR | “${IMPALA_HOME}/fe” | Frontend directory |
IMPALA_COMMON_DIR | “${IMPALA_HOME}/common” | Common code (thrift, function registry) |
Environment variable | Default value | Description |
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IMPALA_BUILD_THREADS | “8” or set to number of processors by default. | Used for make -j and distcc -j settings. |
IMPALA_MAKE_FLAGS | "" | Any extra settings to pass to make. Also used when copying udfs / udas into HDFS. |
USE_SYSTEM_GCC | “0” | If set to any other value, directs cmake to not set GCC_ROOT, CMAKE_C_COMPILER, CMAKE_CXX_COMPILER, as well as setting TOOLCHAIN_LINK_FLAGS |
IMPALA_CXX_COMPILER | “default” | Used by cmake (cmake_modules/toolchain and clang_toolchain.cmake) to select gcc / clang |
USE_GOLD_LINKER | “true” | Directs backend cmake to use gold. |
IS_OSX | “false” | (Experimental) currently only used to disable Kudu. |
Environment variable | Default value | Description |
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HADOOP_HOME | “${CDH_COMPONENTS_HOME}/hadoop-${IMPALA_HADOOP_VERSION}/” | Used to locate Hadoop |
HADOOP_INCLUDE_DIR | “${HADOOP_HOME}/include” | For ‘hdfs.h’ |
HADOOP_LIB_DIR | “${HADOOP_HOME}/lib” | For ‘libhdfs.a’ or ‘libhdfs.so’ |
HIVE_HOME | “${CDH_COMPONENTS_HOME}/{hive-${IMPALA_HIVE_VERSION}/” | |
HBASE_HOME | “${CDH_COMPONENTS_HOME}/hbase-${IMPALA_HBASE_VERSION}/” | |
SENTRY_HOME | “${CDH_COMPONENTS_HOME}/sentry-${IMPALA_SENTRY_VERSION}/” | Used to setup test data |
THRIFT_HOME | “${IMPALA_TOOLCHAIN}/thrift-${IMPALA_THRIFT_VERSION}” |