Nested columns error

[adrianbernardezcobee]

Describe the bug

I am having problems since a few days with the Metabase driver. It seems that the columns with type Nested cannot be queried from Metabase and gives the following error: Failed to read value for column ''. I´m using Metabase cloud but I tried locally and get the same result.

Steps to reproduce

1. Scan clickhouse database with a table with nested columns.
2. Try to query it using the UI.
3. Errors shows up

Expected behaviour

We used to query the tables with nested values without problem.

Error log

{
"status": "failed",
"class": "class clojure.lang.ExceptionInfo",
"error": "Error reducing result rows: Failed to read value for column familyMembers",
"stacktrace": [
"--> query_processor.pipeline$STAR_reduce_STAR$fn__66167.invoke(pipeline.clj:79)",
"query_processor.pipeline$STAR_reduce_STAR.invokeStatic(pipeline.clj:67)",
"query_processor.pipeline$STAR_reduce_STAR.invoke(pipeline.clj:54)",
"query_processor.pipeline$STAR_run_STAR$respond__66179.invoke(pipeline.clj:100)",
"driver.sql_jdbc.execute$execute_reducible_query$fn__77564.invoke(execute.clj:731)",
"driver.clickhouse$fn__117139$fn__117141.invoke(clickhouse.clj:115)",
"driver.sql_jdbc.execute$do_with_resolved_connection77335__77336.invokeStatic(execute.clj:338)",
"driver.sql_jdbc.execute$do_with_resolved_connection77335__77336.invoke(execute.clj:321)",
"driver.clickhouse$fn__117139.invokeStatic(clickhouse.clj:92)",
"driver.clickhouse$fn__117139.invoke(clickhouse.clj:90)",
"driver.sql_jdbc.execute$execute_reducible_query.invokeStatic(execute.clj:714)",
"driver.sql_jdbc.execute$execute_reducible_query.invoke(execute.clj:700)",
"driver.sql_jdbc.execute$execute_reducible_query.invokeStatic(execute.clj:711)",
"driver.sql_jdbc.execute$execute_reducible_query.invoke(execute.clj:700)",
"driver.sql_jdbc$fn__128508.invokeStatic(sql_jdbc.clj:79)",
"driver.sql_jdbc$fn__128508.invoke(sql_jdbc.clj:77)",
"query_processor.pipeline$STAR_execute_STAR.invokeStatic(pipeline.clj:52)",
"query_processor.pipeline$STAR_execute_STAR.invoke(pipeline.clj:39)",
"query_processor.pipeline$STAR_run_STAR.invokeStatic(pipeline.clj:102)",
"query_processor.pipeline$STAR_run_STAR.invoke(pipeline.clj:95)",
"query_processor.execute$run.invokeStatic(execute.clj:62)",
"query_processor.execute$run.invoke(execute.clj:56)",
"query_processor.middleware.update_used_cards$update_used_cards_BANG_72753__72754$fn__72755.invoke(update_used_cards.clj:60)",
"query_processor.execute$add_native_form_to_result_metadata$fn__72858.invoke(execute.clj:25)",
"query_processor.execute$add_preprocessed_query_to_result_metadata_for_userland_query$fn__72864.invoke(execute.clj:36)",
"query_processor.middleware.cache$maybe_return_cached_results$maybe_return_cached_results_STAR___72726.invoke(cache.clj:241)",
"query_processor.middleware.permissions$check_query_permissions$fn__72492.invoke(permissions.clj:148)",
"metabase_enterprise.advanced_permissions.query_processor.middleware.permissions$fn__122226$check_download_permissions__122227$fn__122228.invoke(permissions.clj:99)",
"query_processor.middleware.enterprise$check_download_permissions_middleware$fn__72593.invoke(enterprise.clj:57)",
"metabase_enterprise.sandbox.query_processor.middleware.column_level_perms_check$fn__124307$maybe_apply_column_level_perms_check__124308$fn__124309.invoke(column_level_perms_check.clj:38)",
"query_processor.middleware.enterprise$maybe_apply_column_level_perms_check_middleware$fn__72603.invoke(enterprise.clj:70)",
"query_processor.execute$execute72891__72892$fn__72893.invoke(execute.clj:94)",
"query_processor.setup$do_with_qp_setup72844__72845.invokeStatic(setup.clj:225)",
"query_processor.setup$do_with_qp_setup72844__72845.invoke(setup.clj:216)",
"query_processor.execute$execute72891__72892.invokeStatic(execute.clj:93)",
"query_processor.execute$execute72891__72892.invoke(execute.clj:89)",
"query_processor$process_query_STAR__STAR_.invokeStatic(query_processor.clj:49)",
"query_processor$process_query_STAR__STAR_.invoke(query_processor.clj:44)",
"metabase_enterprise.audit_app.query_processor.middleware.handle_audit_queries$fn__80145$handle_audit_app_internal_queries__80146$fn__80147.invoke(handle_audit_queries.clj:143)",
"query_processor.middleware.enterprise$handle_audit_app_internal_queries_middleware$fn__72631.invoke(enterprise.clj:109)",
"query_processor.middleware.process_userland_query$process_userland_query_middleware80353__80354$fn__80355.invoke(process_userland_query.clj:221)",
"query_processor.middleware.catch_exceptions$catch_exceptions80418__80419$fn__80420.invoke(catch_exceptions.clj:132)",
"query_processor$process_query80581__80582$fn__80583.invoke(query_processor.clj:80)",
"query_processor.setup$do_with_canceled_chan72839__72840$fn__72841.invoke(setup.clj:187)",
"query_processor.setup$do_with_database_local_settings72832__72833$fn__72834.invoke(setup.clj:181)",
"query_processor.setup$do_with_driver72825__72826$fn__72827$fn__72828.invoke(setup.clj:166)",
"driver$do_with_driver.invokeStatic(driver.clj:107)",
"driver$do_with_driver.invoke(driver.clj:102)",
"query_processor.setup$do_with_driver72825__72826$fn__72827.invoke(setup.clj:165)",
"query_processor.setup$do_with_metadata_provider72816__72817$fn__72818$fn__72821.invoke(setup.clj:151)",
"query_processor.store$do_with_metadata_provider57553__57554.invokeStatic(store.clj:170)",
"query_processor.store$do_with_metadata_provider57553__57554.invoke(store.clj:150)",
"query_processor.store$do_with_metadata_provider57553__57554.invokeStatic(store.clj:159)",
"query_processor.store$do_with_metadata_provider57553__57554.invoke(store.clj:150)",
"query_processor.setup$do_with_metadata_provider72816__72817$fn__72818.invoke(setup.clj:150)",
"query_processor.setup$do_with_resolved_database72806__72807$fn__72808.invoke(setup.clj:128)",
"query_processor.setup$do_with_qp_setup72844__72845.invokeStatic(setup.clj:232)",
"query_processor.setup$do_with_qp_setup72844__72845.invoke(setup.clj:216)",
"query_processor$process_query80581__80582.invokeStatic(query_processor.clj:78)",
"query_processor$process_query80581__80582.invoke(query_processor.clj:71)",
"api.dataset$run_streaming_query98793__98796$fn__98800.invoke(dataset.clj:82)",
"query_processor.streaming$_streaming_response$fn__87052$fn__87053$fn__87054.invoke(streaming.clj:185)",
"query_processor.streaming$streaming_response$fn__87052$fn__87053.invoke(streaming.clj:183)",
"query_processor.streaming$do_with_streaming_rff.invokeStatic(streaming.clj:174)",
"query_processor.streaming$do_with_streaming_rff.invoke(streaming.clj:161)",
"query_processor.streaming$streaming_response$fn__87052.invoke(streaming.clj:180)",
"server.streaming_response$do_f_STAR.invokeStatic(streaming_response.clj:78)",
"server.streaming_response$do_f_STAR.invoke(streaming_response.clj:76)",
"server.streaming_response$do_f_async$task__85039.invoke(streaming_response.clj:93)"
],
"error_type": "qp",
"ex-data": {
"type": "qp"
}
}
]

Configuration

Environment

• metabase-clickhouse-driver version: 1.53.3
• metabase-clickhouse-driver configuration:
• Metabase version: v0.53.7
• OS:

ClickHouse server

• ClickHouse Server version: 23.12.2.59
• ClickHouse Server non-default settings, if any: flatten_nested = 0