Zoltan Borok-Nagy has uploaded this change for review. ( 
http://gerrit.cloudera.org:8080/16851


Change subject: IMPALA-10358: Correct Iceberg type mappings
......................................................................

IMPALA-10358: Correct Iceberg type mappings

The Iceberg format spec defines what types to use for different file
formats, e.g.: https://iceberg.apache.org/spec/#parquet

Impala should follow the specification, so this patch
 * annotates strings with UTF8 in Parquet metadata
 * removes fixed(L) <-> CHAR(L) mapping

This patch also refactors the type/schema conversions as
Impala => Iceberg conversions were duplicated in
IcebergCatalogOpExecutor and IcebergUtil. I introduced the class
'IcebergSchemaConverter' to contain the code for conversions.

Testing:
 * added test to check CHAR and VARCHAR types are not allowed
 * added test to check that strings are annotated with UTF8

Change-Id: I652565f82708824f5cf7497139153b06f116ccd3
---
M be/src/exec/parquet/hdfs-parquet-table-writer.cc
M be/src/exec/parquet/hdfs-parquet-table-writer.h
M be/src/exec/parquet/parquet-metadata-utils.cc
M be/src/exec/parquet/parquet-metadata-utils.h
M fe/src/main/java/org/apache/impala/catalog/IcebergTable.java
M fe/src/main/java/org/apache/impala/service/IcebergCatalogOpExecutor.java
A fe/src/main/java/org/apache/impala/util/IcebergSchemaConverter.java
M fe/src/main/java/org/apache/impala/util/IcebergUtil.java
M testdata/workloads/functional-query/queries/QueryTest/iceberg-insert.test
M testdata/workloads/functional-query/queries/QueryTest/iceberg-negative.test
M tests/query_test/test_iceberg.py
11 files changed, 257 insertions(+), 271 deletions(-)



  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/51/16851/1
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I652565f82708824f5cf7497139153b06f116ccd3
Gerrit-Change-Number: 16851
Gerrit-PatchSet: 1
Gerrit-Owner: Zoltan Borok-Nagy <borokna...@cloudera.com>

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