The same column names in different letters in the clockhouse leads to errors in various other products that are connected to the clickhouse via jdbc

Describe the unexpected behaviour

For example we can have two columns with same name like "name" and "Name" in same table.

How to reproduce

https://fiddle.clickhouse.com/

CREATE TABLE users (uid Int16, name String, age Int16, Name String) ENGINE=Memory;

INSERT INTO users VALUES (1231, 'John', 33, 'John');
INSERT INTO users VALUES (6666, 'Ksenia', 48, 'John');
INSERT INTO users VALUES (8888, 'Alice', 50, 'John');

SELECT * FROM users;

Which ClickHouse server version to use: lattest

Expected behavior Avoid using same name in tables. Add exeption to the jdbc driver to rename same name columns with some index on the fly. UPD: Or to make smart shielding same name columns to avoid getting crazy query tools. Error message and/or stacktrace For example Dremio can't work with same column names and shows this error:

Error while applying rule CLICKHOUSELogicalScanConverter, args [rel#752887705:ScanCrel.NONE.ANY([]).[](table="TR EVENTS".app_events.events_v2,columns=sv_unq_id,event_date,event_timestamp,event_time,event_name,event_previous_timestamp,event_value_in_usd,event_bundle_sequence_id,event_server_timestamp_offset,user_id,user_pseudo_id,user_first_touch_timestamp,stream_id,privacy_info_analytics_storage,privacy_info_ads_storage,privacy_info_uses_transient_token,user_ltv_revenue,user_ltv_currency,device_category,device_mobile_brand_name,device_mobile_model_name,device_mobile_marketing_name,device_mobile_os_hardware_model,device_operating_system,device_operating_system_version,device_vendor_id,device_advertising_id,device_language,device_is_limited_ad_tracking,device_time_zone_offset_seconds,device_browser,device_browser_version,device_web_info_browser,device_web_info_browser_version,device_web_info_hostname,geo_continent,geo_country,geo_region,geo_city,geo_sub_continent,geo_metro,app_info_id,app_info_version,app_info_install_store,app_info_firebase_app_id,app_info_install_source,traffic_source_name,traffic_source_medium,traffic_source_source,event_dimensions_hostname,ecommerce_total_item_quantity,ecommerce_purchase_revenue_in_usd,ecommerce_purchase_revenue,ecommerce_refund_value_in_usd,ecommerce_refund_value,ecommerce_shipping_value_in_usd,ecommerce_shipping_value,ecommerce_tax_value_in_usd,ecommerce_tax_value,ecommerce_unique_items,ecommerce_transaction_id,platform,items_item_id,items_item_name,items_item_brand,items_item_variant,items_item_category,items_item_category2,items_item_category3,items_item_category4,items_item_category5,items_price_in_usd,items_price,items_quantity,items_item_revenue_in_usd,items_item_revenue,items_item_refund_in_usd,items_item_refund,items_coupon,items_affiliation,items_location_id,items_item_list_id,items_item_list_name,items_item_list_index,items_promotion_id,items_promotion_name,items_creative_name,items_creative_slot,event_params_ADL,event_params_adt,event_params_af_currency,event_params_af_order_id,event_params_affiliation,event_params_AIRLINE,event_params_AIRPORT,event_params_AnotherCity,event_params_AnotherDate,event_params_application,event_params_arrival,event_params_arrivalTime,event_params_backToSearch,event_params_BAG,event_params_BAG_REVENUE,event_params_banner_name,event_params_build_type,event_params_campaign,event_params_campaign_id,event_params_campaign_info_source,event_params_categoryCode,event_params_chd,event_params_Checked_in,event_params_Checkin,event_params_CHECKINED,event_params_CITY,event_params_CLASS,event_params_click_timestamp,event_params_client,event_params_Client_ID,event_params_CLOSEABLE,event_params_code,event_params_codeshare,event_params_CONTENT,event_params_conversation_id,event_params_COUNT,event_params_COUNTRY,event_params_CRTF,event_params_currency,event_params_CurrentScreen,event_params_DATE,event_params_DATES,event_params_dclid,event_params_DDATE,event_params_debug_event,event_params_debug_mode,event_params_DEEPLINK,event_params_departure,event_params_departure_date,event_params_departureTime,event_params_depature,event_params_depatureTime,event_params_destination,event_params_DETAIL,event_params_discount,event_params_DOCUMENT,event_params_DTIME,event_params_dynamic_link_accept_time,event_params_dynamic_link_link_id,event_params_dynamic_link_link_name,event_params_element_id,event_params_engaged_session_event,event_params_engagement_time_msec,event_params_entrances,event_params_Error,event_params_error_value,event_params_event_type,event_params_EventAction,event_params_EventCategory,event_params_EventLabel,event_params_EventLabel1,event_params_EventLabel10,event_params_EventLabel11,event_params_EventLabel12,event_params_EventLabel2,event_params_EventLabel3,event_params_EventLabel4,event_params_EventLabel5,event_params_EventLabel6,event_params_EventLabel7,event_params_EventLabel8,event_params_EventLabel9,event_params_EventValue,event_params_fare,event_params_FAREFAMILY,event_params_faremix,event_params_fatal,event_params_FFP,event_params_file_extension,event_params_file_name,event_params_firebase_conversion,event_params_firebase_error,event_params_firebase_event_origin,event_params_firebase_previous_class,event_params_firebase_previous_id,event_params_firebase_screen_class,event_params_firebase_screen_id,event_params_FLIGHT,event_params_flight_duration,event_params_flights,event_params_FLOW,event_params_FROM,event_params_FWAY,event_params_ga_session_id,event_params_ga_session_number,event_params_gclid,event_params_HEALTH_PROMO_CODE,event_params_hit_timestamp,event_params_id,event_params_ignore_referrer,event_params_index,event_params_inf,event_params_INSURANCE,event_params_insurance_count,event_params_insurance_type,event_params_item_category,event_params_item_category2,event_params_item_category3,event_params_item_id,event_params_item_name,event_params_item_variant,event_params_ITINERARY,event_params_IWAYID,event_params_lastKnown_ADL,event_params_lastKnown_affiliation,event_params_lastKnown_AIRLINE,event_params_lastKnown_application,event_params_lastKnown_arrival,event_params_lastKnown_arrivalTime,event_params_lastKnown_BAG,event_params_lastKnown_BAG_REVENUE,event_params_lastKnown_campaign,event_params_lastKnown_categoryCode,event_params_lastKnown_CHD,event_params_lastKnown_CHECKINED,event_params_lastKnown_CLASS,event_params_lastKnown_client,event_params_lastKnown_CLOSEABLE,event_params_lastKnown_code,event_params_lastKnown_codeshare,event_params_lastKnown_CONTENT,event_params_lastKnown_CRTF,event_params_lastKnown_CurrentScreen,event_params_lastKnown_DATES,event_params_lastKnown_DDATE,event_params_lastKnown_DEEPLINK,event_params_lastKnown_departure_date,event_params_lastKnown_depature,event_params_lastKnown_depatureTime,event_params_lastKnown_destination,event_params_lastKnown_DETAIL,event_params_lastKnown_DOCUMENT,event_params_lastKnown_DTIME,event_params_lastKnown_element_id,event_params_lastKnown_error,event_params_lastKnown_event_type,event_params_lastKnown_EventAction,event_params_lastKnown_EventCategory,event_params_lastKnown_EventLabel,event_params_lastKnown_EventLabel1,event_params_lastKnown_EventLabel2,event_params_lastKnown_EventLabel3,event_params_lastKnown_EventLabel4,event_params_lastKnown_EventValue,event_params_lastKnown_fare,event_params_lastKnown_FAREFAMILY,event_params_lastKnown_faremix,event_params_lastKnown_FLIGHT,event_params_lastKnown_flights,event_params_lastKnown_flow,event_params_lastKnown_FROM,event_params_lastKnown_FWAY,event_params_lastKnown_id,event_params_lastKnown_index,event_params_lastKnown_INF,event_params_lastKnown_INSURANCE,event_params_lastKnown_insurance_count,event_params_lastKnown_insurance_type,event_params_lastKnown_item_category2,event_params_lastKnown_item_category3,event_params_lastKnown_item_id,event_params_lastKnown_item_name,event_params_lastKnown_item_variant,event_params_lastKnown_ITINERARY,event_params_lastKnown_LINE,event_params_lastKnown_location,event_params_lastKnown_location_id,event_params_lastKnown_login,event_params_lastKnown_marketing,event_params_lastKnown_MEAL,event_params_lastKnown_MEAL_REVENUE,event_params_lastKnown_medium,event_params_lastKnown_MILES,event_params_lastKnown_NAME,event_params_lastKnown_operatimg,event_params_lastKnown_ORDER_ID,event_params_lastKnown_ORDERID,event_params_lastKnown_origin,event_params_lastKnown_OW_ADT,event_params_lastKnown_OW_CHD,event_params_lastKnown_parameter,event_params_lastKnown_partner,event_params_lastKnown_PERSONAL,event_params_lastKnown_pnr,event_params_lastKnown_POS,event_params_lastKnown_price,event_params_lastKnown_PROMOCODE,event_params_lastKnown_promotion_id,event_params_lastKnown_promotion_name,event_params_lastKnown_QTY,event_params_lastKnown_quantity,event_params_lastKnown_RDATE,event_params_lastKnown_RDMPTN,event_params_lastKnown_result,event_params_lastKnown_REVENUE,event_params_lastKnown_RT_ADT,event_params_lastKnown_RT_CHD,event_params_lastKnown_SCREEN,event_params_lastKnown_SEAT,event_params_lastKnown_SEAT_REVENUE,event_params_lastKnown_SESSION_ID,event_params_lastKnown_slice,event_params_lastKnown_source,event_params_lastKnown_STATUS,event_params_lastKnown_step,event_params_lastKnown_SUB,event_params_lastKnown_SWITCH,event_params_lastKnown_THEME,event_params_lastKnown_TICKETSTYPE,event_params_lastKnown_title,event_params_lastKnown_TO,event_params_lastKnown_transaction_id,event_params_lastKnown_trueEventCategory,event_params_lastKnown_type,event_params_lastKnown_ui,event_params_lastKnown_UX,event_params_lastKnown_ux_ui,event_params_lastKnown_way,event_params_lastKnown_WEIGHT,event_params_LINE,event_params_link_classes,event_params_link_domain,event_params_link_id,event_params_link_text,event_params_link_url,event_params_LOCATION,event_params_location_id,event_params_login,event_params_marketing,event_params_MEAL,event_params_MEAL_REVENUE,event_params_medium,event_params_MILES,event_params_MODEL,event_params_NAME,event_params_NEW,event_params_NONE,event_params_notification_id,event_params_offer_id,event_params_OFFERS,event_params_operatimg,event_params_operating,event_params_ORDER,event_params_ORDER_ID,event_params_ORDERID,event_params_origin,event_params_other_value_coupon_value,event_params_other_value_miles_value,event_params_other_value_sertificate_value,event_params_outbound,event_params_OW_ADT,event_params_OW_CHD,event_params_page_location,event_params_page_referrer,event_params_page_title,event_params_pagePath,event_params_parameter,event_params_partner,event_params_passenger_id,event_params_payment_type,event_params_percent_scrolled,event_params_PERSONAL,event_params_PLACE,event_params_pnr,event_params_POS,event_params_PREVIOUS,event_params_previous_app_version,event_params_previous_first_open_count,event_params_previous_os_version,event_params_PRICE,event_params_product_id,event_params_PROMOCODE,event_params_promotion_id,event_params_promotion_name,event_params_QTY,event_params_quantity,event_params_RDATE,event_params_RDMPTN,event_params_result,event_params_REVENUE,event_params_ROUTE,event_params_RT_ADT,event_params_RT_CHD,event_params_S7_FLIGHT,event_params_S7_NSP,event_params_S7_SPORT,event_params_S7_TRAVEL,event_params_S7_VZR,event_params_SCREEN,event_params_search_term,event_params_SEAT,event_params_SEAT_REVENUE,event_params_segment,event_params_session_engaged,event_params_SESSION_ID,event_params_slice,event_params_slices,event_params_SOCIAL,event_params_source,event_params_spa,event_params_SPNR,event_params_STATUS,event_params_step,event_params_stops,event_params_stops_duration,event_params_SUB,event_params_SUB_WAY,event_params_subCategoryCode,event_params_subsidized,event_params_SWITCH,event_params_system_app,event_params_system_app_update,event_params_TAGID,event_params_term,event_params_THEME,event_params_TICKETSTYPE,event_params_TIME,event_params_timestamp,event_params_title,event_params_TO,event_params_transaction_id,event_params_trueEventAction,event_params_trueEventCategory,event_params_tyapplicationpe,event_params_TYPE,event_params_UI,event_params_unique_search_term,event_params_update_with_analytics,event_params_UPGRADE,event_params_UPGRADE_REVENUE,event_params_url,event_params_User_ID,event_params_ux,event_params_ux_ui,event_params_value,event_params_version_code,event_params_version_name,event_params_video_current_time,event_params_video_duration,event_params_video_percent,event_params_video_provider,event_params_video_title,event_params_video_url,event_params_visible,event_params_way,event_params_wci_info_checkin,event_params_wci_info_checked_in,event_params_wci_info_bp_allowed,event_params_wci_info_mbp_allowed,event_params_WEIGHT,event_params_arrival_date,event_params_company_id,event_params_finish_date,event_params_ond,event_params_products,event_params_search_id,event_params_search_payload,event_params_start_date,user_properties_Apple,user_properties_Checkined,user_properties_Facebook,user_properties_Google,user_properties_Instagram,user_properties_Play_Services,user_properties_Purchased,user_properties_SavedCard,user_properties_SavedCompanion,user_properties_SavedDocument,user_properties_SavedVisa,user_properties_Settings_Currency,user_properties_Settings_Settings_Push,user_properties_Stats_Airport,user_properties_Stats_City,user_properties_Stats_Country,user_properties_Tinkoff,user_properties_User_Active_Flights,user_properties_User_FFP_number,user_properties_User_FFP_status,user_properties_User_Profile_type,user_properties_VK,user_properties__ltv_RUB,user_properties_active_flights,user_properties_activeflights,user_properties_build_type,user_properties_device_id,user_properties_firebase_exp_36,user_properties_firebase_last_notification,user_properties_first_open_time,user_properties_ga_session_id,user_properties_ga_session_number,user_properties_idfa_consent,user_properties_last_advertising_id_reset,user_properties_last_gclid,user_properties_profile_type,user_properties_profiletype,user_properties_user_id,event_params_other_value,event_params_wci_info,user_first_date,user_first_time,event_params_exp,event_params_coupon,user_properties_profile_ab_group,user_properties_user_pseudo_id,event_params_part_cash_part_miles_flag,event_params_item_list_name,collected_traffic_source_manual_campaign_id,collected_traffic_source_manual_campaign_name,collected_traffic_source_manual_source,collected_traffic_source_manual_medium,collected_traffic_source_manual_term,collected_traffic_source_manual_content,collected_traffic_source_gclid,collected_traffic_source_dclid,collected_traffic_source_srsltid,session_params_utm_source,session_params_utm_medium,session_params_utm_campaign,session_params_utm_content,session_params_utm_term,splits=1,tableDigest=-1068618140|TR EVENTS|3e58860e-0ce5-43f9-a83d-ee57dec1e1b1)].

There is also Trino can't work with it.

Additional context it seams there is no problem at all in clickhouse due to it "can" work with different spelling column names but it is a huge annoing to others and gives reason to hate clickhouse.

ClickHouse / clickhouse-java

The same column names in different letters in the clockhouse leads to errors in various other products that are connected to the clickhouse via jdbc #1473