paul-rogers opened a new pull request #1889: DRILL-7436: Fix record count, vector structure issues in several operators URL: https://github.com/apache/drill/pull/1889 Adds additional vector checks to the `BatchValidator`. Enables checking for the following operators: * `FilterRecordBatch` * `PartitionLimitRecordBatch` * `UnnestRecordBatch` * `HashAggBatch` * `RemovingRecordBatch` Fixes vector count issues for each of these. Fixes empty-batch (record count = 0) handling in several of the above operators. Added a method to `VectorContainer` to correctly create an empty batch. (An empty batch, counter-intuitively, needs vectors allocated to hold the 0 value in the first position of each offset vector.) Disables verbose logging for MongoDB tests. Details are written to the log rather than the console. Disables two invalid Mongo tests. See DRILL-7428. Adjusts the expression tree materializer to not add the LATE type to Union vectors. (See DRILL-7435.) Ensures that Union vectors contain valid vectors for each subtype. The present fix is a work-around, see DRILL-7434 for a better long-term fix. Cleans up code formatting and other minor issues in each file touched during the fixes in this PR.
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