Taras Bobrovytsky has uploaded a new patch set (#10). ( http://gerrit.cloudera.org:8080/9930 )
Change subject: IMPALA-6340,IMPALA-6518: Check that decimal types are compatible in FE ...................................................................... IMPALA-6340,IMPALA-6518: Check that decimal types are compatible in FE In this patch we implement strict decimal type checking in the FE in various situations when DECIMAL_V2 is enabled. What is affected: - Union. If we union two decimals and it is not possible to come up with a decimal that will be able to contain all the digits, an error is thrown. For example, the union(decimal(20, 10), decimal(20, 20)) returns decimal(30, 20). However, for union(decimal(38, 0), decimal(38, 38)) the ideal return type would be decimal(76,38), but this is too large, so an error is thrown. - Insert. If we are inserting a decimal value into a column where we are not guaranteed that all digits will fit, an error is thrown. For example, inserting a decimal(38,0) value into a decimal(38,38) column. - Functions such as coalesce(). If we are unable to determine the output type that guarantees that all digits will fit from all the arguments, an error is thrown. For example, coalesce(decimal(38,38), decimal(38,0)) will throw an error. - Hash Join. When joining on two decimals, if a type cannot be determined that both columns can be cast to, we throw an error. For example, join on decimal(38,0) and decimal(38,38) will result in an error. To avoid these errors, you need to use CAST() on some of the decimals. In this patch we also change the output decimal calculation of decimal round, truncate and related functions. If these functions are a no-op, the resulting decimal type is the same as the input type. Testing: - Ran a core build which passed. Change-Id: Id406f4189e01a909152985fabd5cca7a1527a568 --- M be/src/exprs/expr-test.cc M fe/src/main/java/org/apache/impala/analysis/AnalyticExpr.java M fe/src/main/java/org/apache/impala/analysis/Analyzer.java M fe/src/main/java/org/apache/impala/analysis/ArithmeticExpr.java M fe/src/main/java/org/apache/impala/analysis/BinaryPredicate.java M fe/src/main/java/org/apache/impala/analysis/CaseExpr.java M fe/src/main/java/org/apache/impala/analysis/ColumnDef.java M fe/src/main/java/org/apache/impala/analysis/CompoundPredicate.java M fe/src/main/java/org/apache/impala/analysis/Expr.java M fe/src/main/java/org/apache/impala/analysis/FunctionCallExpr.java M fe/src/main/java/org/apache/impala/analysis/InPredicate.java M fe/src/main/java/org/apache/impala/analysis/InsertStmt.java M fe/src/main/java/org/apache/impala/analysis/LikePredicate.java M fe/src/main/java/org/apache/impala/analysis/ModifyStmt.java M fe/src/main/java/org/apache/impala/analysis/PartitionSpec.java M fe/src/main/java/org/apache/impala/analysis/RangePartition.java M fe/src/main/java/org/apache/impala/analysis/StatementBase.java M fe/src/main/java/org/apache/impala/analysis/TimestampArithmeticExpr.java M fe/src/main/java/org/apache/impala/analysis/TypesUtil.java M fe/src/main/java/org/apache/impala/catalog/Function.java M fe/src/main/java/org/apache/impala/catalog/ScalarType.java M fe/src/main/java/org/apache/impala/catalog/Type.java M fe/src/main/java/org/apache/impala/planner/HashJoinNode.java M fe/src/test/java/org/apache/impala/analysis/AnalyzeExprsTest.java M fe/src/test/java/org/apache/impala/analysis/AnalyzeStmtsTest.java M fe/src/test/java/org/apache/impala/analysis/ExprRewriteRulesTest.java M fe/src/test/java/org/apache/impala/analysis/TypesUtilTest.java M fe/src/test/java/org/apache/impala/planner/PlannerTestBase.java M testdata/workloads/functional-planner/queries/PlannerTest/complex-types-file-formats.test M testdata/workloads/functional-planner/queries/PlannerTest/joins.test M testdata/workloads/functional-planner/queries/PlannerTest/mt-dop-validation.test M testdata/workloads/functional-planner/queries/PlannerTest/nested-loop-join.test M testdata/workloads/functional-query/queries/QueryTest/decimal-exprs.test M testdata/workloads/functional-query/queries/QueryTest/decimal.test 34 files changed, 550 insertions(+), 292 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/30/9930/10 -- To view, visit http://gerrit.cloudera.org:8080/9930 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: Id406f4189e01a909152985fabd5cca7a1527a568 Gerrit-Change-Number: 9930 Gerrit-PatchSet: 10 Gerrit-Owner: Taras Bobrovytsky <tbobrovyt...@cloudera.com> Gerrit-Reviewer: Alex Behm <alex.b...@cloudera.com> Gerrit-Reviewer: Dan Hecht <dhe...@cloudera.com> Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com> Gerrit-Reviewer: Taras Bobrovytsky <tbobrovyt...@cloudera.com>
