Fang-Yu Rao has uploaded this change for review. ( http://gerrit.cloudera.org:8080/22623
Change subject: IMPALA-13653: Create hooks for Calcite planner in Frontend ...................................................................... IMPALA-13653: Create hooks for Calcite planner in Frontend This commit creates hooks into the Impala planner that will call into the Calcite planner. There is one factory hook and 3 compilation hooks introduced to allow this to happen: - CompilerFactory : This factory hook has methods to create the implementations for the three interfaces described below. The idea is to introduce a query option that allows the Calcite objects to be called instead of the Impala planner. In this iteration, the only implementation called is the Impala specific implementations. - ParsedStatement: The implementation of this interface will parse the SQL query into an AST in its constructor. The implementation will be a wrapper for the AST which can be accessed through the "getTopLevelNode" method. For the current planner, the "StatementBase" object will be accessible via this method. - AnalysisDriver: The implementation of this interface will analyze the parsed AST via the "analyze" method. To make the code review as easy as possible, the AnalyzeDriverImpl implementation has been placed inside the AnalysisContext object. - SingleNodePlannerIntf: The implementation of this interface will return a PlanNode that can run on a single node via the "createSingleNodePlan" method. Various other methods in this interface allow access to data structures that are needed for the final plan. These objects are related to the output Expr objects. There is an additional "getFallbackFactory" method included in the CompilerFactory interface. This method is meant to allow the CompilerFactory to supply a "fallback" compiler to use if it cannot handle the sql statement passed in. For the Impala implementation, there is no fallback and will return null. Change-Id: I70385e2d77c2cd6801a8e6e362e0020b32516e97 --- M fe/src/main/java/org/apache/impala/analysis/AnalysisContext.java A fe/src/main/java/org/apache/impala/analysis/ParsedStatement.java A fe/src/main/java/org/apache/impala/analysis/ParsedStatementImpl.java M fe/src/main/java/org/apache/impala/analysis/StmtMetadataLoader.java A fe/src/main/java/org/apache/impala/common/FallbackException.java M fe/src/main/java/org/apache/impala/planner/Planner.java M fe/src/main/java/org/apache/impala/planner/SingleNodePlanner.java A fe/src/main/java/org/apache/impala/planner/SingleNodePlannerIntf.java A fe/src/main/java/org/apache/impala/service/CompilerFactory.java A fe/src/main/java/org/apache/impala/service/CompilerFactoryImpl.java M fe/src/main/java/org/apache/impala/service/Frontend.java M fe/src/test/java/org/apache/impala/analysis/ExprRewriteRulesTest.java M fe/src/test/java/org/apache/impala/analysis/ExprRewriterTest.java M fe/src/test/java/org/apache/impala/analysis/ParserTest.java M fe/src/test/java/org/apache/impala/analysis/StmtMetadataLoaderTest.java M fe/src/test/java/org/apache/impala/common/FrontendFixture.java M fe/src/test/java/org/apache/impala/common/FrontendTestBase.java M fe/src/test/java/org/apache/impala/common/QueryFixture.java 18 files changed, 575 insertions(+), 126 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/23/22623/1 -- To view, visit http://gerrit.cloudera.org:8080/22623 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: I70385e2d77c2cd6801a8e6e362e0020b32516e97 Gerrit-Change-Number: 22623 Gerrit-PatchSet: 1 Gerrit-Owner: Fang-Yu Rao <fangyu....@cloudera.com> Gerrit-Reviewer: Steve Carlin <scar...@cloudera.com>
