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impala/docs/impala.ditamap
jichen0919 826c8cf9b0 IMPALA-14081: Support create/drop paimon table for impala 
This patch mainly implement the creation/drop of paimon table
through impala.

Supported impala data types:
- BOOLEAN
- TINYINT
- SMALLINT
- INTEGER
- BIGINT
- FLOAT
- DOUBLE
- STRING
- DECIMAL(P,S)
- TIMESTAMP
- CHAR(N)
- VARCHAR(N)
- BINARY
- DATE

Syntax for creating paimon table:

CREATE [EXTERNAL] TABLE [IF NOT EXISTS] [db_name.]table_name
(
[col_name data_type ,...]
[PRIMARY KEY (col1,col2)]
)
[PARTITIONED BY (col_name data_type [COMMENT 'col_comment'], ...)]
STORED AS PAIMON
[LOCATION 'hdfs_path']
[TBLPROPERTIES (
'primary-key'='col1,col2',
'file.format' = 'orc/parquet',
'bucket' = '2',
'bucket-key' = 'col3',
];

Two types of paimon catalogs are supported.

(1) Create table with hive catalog:

CREATE TABLE paimon_hive_cat(userid INT,movieId INT)
STORED AS PAIMON;

(2) Create table with hadoop catalog:

CREATE [EXTERNAL] TABLE paimon_hadoop_cat
STORED AS PAIMON
TBLPROPERTIES('paimon.catalog'='hadoop',
'paimon.catalog_location'='/path/to/paimon_hadoop_catalog',
'paimon.table_identifier'='paimondb.paimontable');

SHOW TABLE STAT/SHOW COLUMN STAT/SHOW PARTITIONS/SHOW FILES
statements are also supported.

TODO:
    - Patches pending submission:
        - Query support for paimon data files.
        - Partition pruning and predicate push down.
        - Query support with time travel.
        - Query support for paimon meta tables.
    - WIP:
        - Complex type query support.
        - Virtual Column query support for querying
          paimon data table.
        - Native paimon table scanner, instead of
          jni based.
Testing:
    - Add unit test for paimon impala type conversion.
    - Add unit test for ToSqlTest.java.
    - Add unit test for AnalyzeDDLTest.java.
    - Update default_file_format TestEnumCase in
      be/src/service/query-options-test.cc.
    - Update test case in
      testdata/workloads/functional-query/queries/QueryTest/set.test.
    - Add test cases in metadata/test_show_create_table.py.
    - Add custom test test_paimon.py.

Change-Id: I57e77f28151e4a91353ef77050f9f0cd7d9d05ef
Reviewed-on: http://gerrit.cloudera.org:8080/22914
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Reviewed-by: Riza Suminto <riza.suminto@cloudera.com>
2025-09-10 21:24:49 +00:00

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</topicmeta>
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<topicref href="topics/impala_comment.xml"/>
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<topicref href="topics/impala_grant.xml"/>
<topicref href="topics/impala_insert.xml"/>
<topicref href="topics/impala_invalidate_metadata.xml"/>
<topicref href="topics/impala_kill_query.xml"/>
<topicref href="topics/impala_load_data.xml"/>
<topicref href="topics/impala_merge.xml"/>
<topicref href="topics/impala_refresh.xml"/>
<topicref href="topics/impala_refresh_authorization.xml"/>
<topicref href="topics/impala_refresh_functions.xml"/>
<topicref href="topics/impala_revoke.xml"/>
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<topicref href="topics/impala_batch_size.xml"/>
<topicref href="topics/impala_broadcast_bytes_limit.xml"/>
<topicref rev="2.10.0 IMPALA-3200" href="topics/impala_buffer_pool_limit.xml"/>
<topicref href="topics/impala_compression_codec.xml"/>
<topicref href="topics/impala_compute_stats_min_sample_size.xml"/>
<topicref href="topics/impala_debug_action.xml"/>
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<topicref rev="2.9.0 IMPALA-5381" href="topics/impala_default_join_distribution_mode.xml"/>
<topicref rev="2.10.0 IMPALA-3200" href="topics/impala_default_spillable_buffer_size.xml"/>
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<topicref href="topics/impala_hbase_cache_blocks.xml"/>
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<topicref href="topics/impala_num_nodes.xml"/>
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<topicref href="topics/impala_num_scanner_threads.xml"/>
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<topicref href="topics/impala_parquet_dictionary_filtering.xml"/>
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<topicref rev="3.1" href="topics/impala_scan_bytes_limit.xml"/>
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<topicref href="topics/impala_sync_ddl.xml"/>
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<topicref href="topics/impala_timezone.xml"/>
<topicref href="topics/impala_topn_bytes_limit.xml"/>
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</topicref>
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<topicref href="topics/impala_shutdown.xml"/>
<topicref href="topics/impala_truncate_table.xml"/>
<topicref href="topics/impala_update.xml"/>
<topicref href="topics/impala_upsert.xml"/>
<topicref href="topics/impala_use.xml"/>
<topicref href="topics/impala_values.xml"/>
<topicref href="topics/impala_hints.xml"/>
</topicref>
<topicref href="topics/impala_functions.xml">
<topicref href="topics/impala_math_functions.xml"/>
<topicref href="topics/impala_bit_functions.xml"/>
<topicref href="topics/impala_conversion_functions.xml"/>
<topicref href="topics/impala_datetime_functions.xml"/>
<topicref href="topics/impala_conditional_functions.xml"/>
<topicref href="topics/impala_string_functions.xml"/>
<topicref href="topics/impala_ai_functions.xml"/>
<topicref href="topics/impala_misc_functions.xml"/>
<topicref href="topics/impala_aggregate_functions.xml">
<topicref href="topics/impala_appx_median.xml"/>
<topicref href="topics/impala_avg.xml"/>
<topicref href="topics/impala_count.xml"/>
<topicref href="topics/impala_group_concat.xml"/>
<topicref href="topics/impala_max.xml"/>
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<topicref href="topics/impala_ndv.xml"/>
<topicref href="topics/impala_stddev.xml"/>
<topicref href="topics/impala_sum.xml"/>
<topicref href="topics/impala_variance.xml"/>
</topicref>
<topicref href="topics/impala_analytic_functions.xml"/>
<topicref href="topics/impala_geospatial_functions.xml"/>
</topicref>
<topicref href="topics/impala_udf.xml"/>
<topicref href="topics/impala_langref_unsupported.xml"/>
<topicref href="topics/impala_porting.xml"/>
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</topicref>
<topicref href="topics/impala_performance.xml">
<topicref href="topics/impala_perf_cookbook.xml"/>
<topicref href="topics/impala_perf_joins.xml"/>
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<topicref href="topics/impala_perf_benchmarking.xml"/>
<topicref href="topics/impala_perf_resources.xml"/>
<topicref rev="2.5.0" href="topics/impala_runtime_filtering.xml"/>
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<topicref href="topics/impala_scalability.xml">
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<topicref href="topics/impala_dedicated_coordinator.xml"/>
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</topicref>
<topicref href="topics/impala_resource_management.xml">
<topicref href="topics/impala_admission.xml"/>
<topicref href="topics/impala_admission_config.xml"/>
<topicref href="topics/impala_cluster_id_request_queue.xml"/>
</topicref>
<topicref href="topics/impala_partitioning.xml"/>
<topicref href="topics/impala_file_formats.xml">
<topicref href="topics/impala_txtfile.xml"/>
<topicref href="topics/impala_parquet.xml"/>
<topicref href="topics/impala_orc.xml"/>
<topicref href="topics/impala_avro.xml"/>
<topicref href="topics/impala_hudi.xml"/>
<topicref href="topics/impala_rcfile.xml"/>
<topicref href="topics/impala_seqfile.xml"/>
</topicref>
<topicref href="topics/impala_jdbc_external_table.xml"/>
<topicref href="topics/impala_kudu.xml"/>
<topicref href="topics/impala_hbase.xml"/>
<topicref rev="4.1.0" href="topics/impala_iceberg.xml"/>
<topicref rev="5.0.0" href="topics/impala_paimon.xml"/>
<topicref href="topics/impala_s3.xml"/>
<topicref rev="2.9.0" href="topics/impala_adls.xml"/>
<topicref href="topics/impala_isilon.xml"/>
<topicref rev="4.2.0" href="topics/impala_ozone.xml"/>
<topicref href="topics/impala_logging.xml"/>
<topicref href="topics/impala_client.xml">
<topicref href="topics/impala_impala_shell.xml">
<topicref href="topics/impala_shell_options.xml"/>
<topicref href="topics/impala_connecting.xml"/>
<topicref href="topics/impala_shell_running_commands.xml"/>
<topicref href="topics/impala_shell_commands.xml"/>
</topicref>
<topicref href="topics/impala_odbc.xml"/>
<topicref href="topics/impala_jdbc.xml"/>
<topicref href="topics/impala_query_results_spooling.xml"/>
</topicref>
<topicref href="topics/impala_fault_tolerance.xml">
<topicref href="topics/impala_transparent_query_retries.xml"/>
<topicref href="topics/impala_node_blacklisting.xml"/>
</topicref>
<topicref href="topics/impala_troubleshooting.xml">
<topicref href="topics/impala_webui.xml"/>
<topicref href="topics/impala_breakpad.xml"/>
</topicref>
<topicref href="topics/impala_ports.xml"/>
<topicref href="topics/impala_reserved_words.xml"/>
<!-- End of former contents of Installing-and-Using-Impala_xi42979.ditamap. -->
<topicref audience="standalone" href="topics/impala_faq.xml"/>
<topicref audience="standalone" href="topics/impala_release_notes.xml">
<mapref href="impala_release_notes.ditamap" format="ditamap" audience="standalone"/>
</topicref>
<!-- Substitution variables and link destinations abstracted
into a .h-like side file. -->
<mapref href="impala_keydefs.ditamap" format="ditamap"/>
</map>
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