Aleksey Plekhanov created CALCITE-5435: ------------------------------------------
Summary: Insert multi row values failed when column have values of different types Key: CALCITE-5435 URL: https://issues.apache.org/jira/browse/CALCITE-5435 Project: Calcite Issue Type: Bug Reporter: Aleksey Plekhanov Assignee: Aleksey Plekhanov Queries like: {noformat} insert into empnullables (empno) values (10), ('20'){noformat} Or: {noformat} insert into empnullables (empno, deptno) values (10, '300'), (20, null){noformat} Fail with an exception: {noformat} >From line 2, column 1 to line 2, column 32: Values passed to VALUES operator >must have compatible types org.apache.calcite.runtime.CalciteContextException: From line 2, column 1 to line 2, column 32: Values passed to VALUES operator must have compatible types ... at app//org.apache.calcite.sql.validate.SqlValidatorImpl.validateValues(SqlValidatorImpl.java:5370){noformat} In the first query, first row has column type INTEGER and second row has column type CHAR(2). In the second query data type of {{null}} is infered from target data type (INTEGER). However types of values can be coerced. In case of one-by-one inserts statements work as expected. For one-row inserts this check is skipped and types are coerced later in {{SqlValidatorImpl#validateInsert}} -> {{{}checkTypeAssignment{}}}. -- This message was sent by Atlassian Jira (v8.20.10#820010)