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¬åŒHPã®äžæã«ãããšSQLããŒã¿ããŒã¹ãã«ã¿ãã°çœ®ãå Žã«ãããŒã¿ãparquetãã¡ã€ã«ã«ä¿åãã圢åŒã®Lakehouseãã©ãŒãããã ããã§ãã DuckLake delivers advanced data lake features without traditional lakehouse complexity by using Parquet files and your SQL database. It's an open, standalone format from the DuckDB team. ïŒGoogleç¿»èš³ïŒ DuckLakeã¯ãParquetãã¡ã€ã«ãšSQLããŒã¿ããŒã¹ã䜿çšããããšã§ãåŸæ¥ã®ã¬ã€ã¯ããŠã¹ã®è€éããæé€ããªãããé«åºŠãªããŒã¿ã¬ã€ã¯æ©èœãæäŸããŸããDuckDBããŒã ãæäŸãããªãŒãã³ãªã¹ã¿ã³ãã¢ãã³ãã©ãŒãããã§ãã ç°¡åã«Lakehouseã䜿ãããšè§£éããŠãããŸãããïŒ ã§ã¯æ©éæºåããŠäœ¿ã£ãŠãããŸãã æºå ä»åãPostgresqlãšminioãcomposeã§å»ºãŠãããããã«ã¿ãã°çœ®ãå ŽãããŒã¿çœ®ãå ŽãšããŠäœ¿ããŸãã ç°å¢æ§ç¯åŸãDuckDB CLIããã¯ãšãªãæã£ãŠæäœããŠãã圢ã§ã ã 1. composeã§Postgresqlãšminioãèµ·å ãŸã.envãã¡ã€ã«ã«ãã¹ã¯ãŒãçãèšèŒããŠãããŠãã ããã Minioã®ãã¹ã¯ãŒãã¯çããšä»¥äžã®ãšã©ãŒã§ã³ã³ããèµ·åã§ããªãã®ã§æ³šæã MINIO_ROOT_USER length should be at least 3, and MINIO_ROOT_PASSWORD length at least 8 characters MINIO_ROOT_USER=root-minio MINIO_ROOT_PASSWORD=root-minio POSTGRES_USER=postgres POSTGRES_PASSWORD=postgres POSTGRES_DB=postgres ãã£ã¬ã¯ããªãäœã£ãŠãããŸãã mkdir ./data/minio mkdir ./data/postgres 以äžã®å
容ã§composeãã¡ã€ã«ãæžããŸãã services : minio : image : quay.io/minio/minio:RELEASE.2025-05-24T17-08-30Z container_name : minio command : server /data --console-address ":9001" environment : MINIO_ROOT_USER : ${MINIO_ROOT_USER} MINIO_ROOT_PASSWORD : ${MINIO_ROOT_PASSWORD} volumes : - ./data/minio:/data ports : - "127.0.0.1:9000:9000" - "127.0.0.1:9001:9001" healthcheck : test : [ "CMD" , "mc" , "ready" , "local" ] start_period : 10s interval : 30s timeout : 20s retries : 3 postgres : image : postgres:17.5-bookworm container_name : postgres environment : POSTGRES_USER : ${POSTGRES_USER} POSTGRES_PASSWORD : ${POSTGRES_PASSWORD} POSTGRES_DB : ${POSTGRES_DB} volumes : - ./data/postgres/init.sql:/docker-entrypoint-initdb.d/init.sql:ro ports : - "127.0.0.1:5432:5432" healthcheck : test : [ "CMD-SHELL" , "pg_isready -U ${POSTGRES_USER}" ] interval : 10s timeout : 5s retries : 5 networks : default : name : ducknet init.sqlã«ã¯ä»¥äžãèšèŒããŸãã CREATE DATABASE ducklake; docker compose up ã§èµ·åããŸãã 2. minioã§ãã±ãããäœæãã ä»åGUIããäœããŸããã http://localhost:9001/ ã«ã¢ã¯ã»ã¹ããŠãã ããã ãã°ã€ã³ããŠãå·ŠåŽã®Create Bucketãããã±ãããäœããŸãã ä»åååã¯ducklake-pocã«ããŸããã 3. DuckDBåŽã®æºåãšèµ·å DuckDBãã€ã³ã¹ããŒã«ããŸãã ä»åã¯CLIã®DuckDBã䜿ããŸãã HPã«ããã³ãã³ã curl https://install.duckdb.org | sh ã€ã³ã¹ããŒã«ã§ãããç¢ºèª $ duckdb -version v1.3.0 71c5c07cdd DuckDBã«å¿
èŠãªæ¡åŒµæ©èœãã€ã³ã¹ããŒã«ããŸãã duckdbã³ãã³ãã§CLIãèµ·åããŠä»¥äžã®ã³ãã³ããæã£ãŠãã ããã INSTALL ducklake; INSTALL httpfs; INSTALL postgres; LOAD postgres; LOAD ducklake; LOAD httpfs; postgresãhttpfsã¯Ducklakeã®ããã¥ã¡ã³ãã«ã¯æžããŠãªãã£ãã§ããããšããããé¢ä¿ããŠãããªã®ã§ã€ã³ã¹ããŒã«ããŠãããŸããã Postgresqlãšãªããžã§ã¯ãã¹ãã¬ãŒãžã«æ¥ç¶ããã¢ã¿ããããã«ã¿ãã°ããŒã¿ããŒã¹ã䜿çšç¶æ
ã«ããŸãã ãŸãs3æ¥ç¶çšã·ãŒã¯ã¬ãããäœããŸãã create secret (type s3, key_id 'root-minio', secret 'root-minio', endpoint 'localhost:9000', use_ssl false, url_style 'path'); ã§ã¯æ¥ç¶ããŸãã ATTACH 'ducklake:postgres:dbname=ducklake_catalog host=localhost user=postgres password=postgres' AS postgres_ducklake (DATA_PATH 's3://ducklake-poc'); USEãããšãã«ãšã©ãŒã§ãªããã°æåã§ãã USE postgres_ducklake; Attachããã¿ã€ãã³ã°ã§ããŒãã«ãäœæãããŸãã publicã¹ããŒãã«äœãããŠãŸãã $ docker exec -it postgres psql -U postgres -d ducklake psql (17.5 (Debian 17.5-1.pgdg120+1)) Type "help" for help. ducklake=# \dt Did not find any relations. ducklake=# \dt List of relations Schema | Name | Type | Owner --------+---------------------------------------+-------+---------- public | ducklake_column | table | postgres public | ducklake_column_tag | table | postgres public | ducklake_data_file | table | postgres public | ducklake_delete_file | table | postgres public | ducklake_file_column_statistics | table | postgres public | ducklake_file_partition_value | table | postgres public | ducklake_files_scheduled_for_deletion | table | postgres public | ducklake_inlined_data_tables | table | postgres public | ducklake_metadata | table | postgres public | ducklake_partition_column | table | postgres public | ducklake_partition_info | table | postgres public | ducklake_schema | table | postgres public | ducklake_snapshot | table | postgres public | ducklake_snapshot_changes | table | postgres public | ducklake_table | table | postgres public | ducklake_table_column_stats | table | postgres public | ducklake_table_stats | table | postgres public | ducklake_tag | table | postgres public | ducklake_view | table | postgres (19 rows) ducklake=# \dt public.ducklake_column; List of relations Schema | Name | Type | Owner --------+-----------------+-------+---------- public | ducklake_column | table | postgres (1 row) ããã§äœ¿ãæºåã¯å®äºã§ãã 詊ã Introduction ã®ãµã³ãã«ãå
ã«è©Šãã«ãã£ãŠã¿ãŸãã Postgresqlãšminioã§ç°å¢æ§ç¯ããŠãã®ã§ãäžéšãæ¹å€ããŠå®è¡ããŠãŸãã â»è²ã
暪éãããªãããã£ãŠãã®ã§ãäžéšãªããžã§ã¯ããã¡ã€ã«ã®ãã¡ã€ã«åéã£ããããŸããæ°ã«ããªãã§ãã ããã CREATE TABLE nl_train_stations AS FROM 'https://blobs.duckdb.org/nl_stations.csv'; ããã§CSVãã¡ã€ã«ããããŒã¿ãèªã¿èŸŒã¿ããŒãã«ãäœæãããŸãã DBãèŠãŠã¿ããšããŒãã«ã®æ
å ±ãäœæãããŠãŸãã ducklake=# select * from ducklake_table; table_id | table_uuid | begin_snapshot | end_snapshot | schema_id | table_name ----------+--------------------------------------+----------------+--------------+-----------+------------------- 1 | 01974993-3ba1-7505-b4bf-eecff46886e0 | 1 | | 0 | nl_train_stations (1 row) ducklake=# select table_id,column_name from ducklake_column; table_id | column_name ----------+------------- 1 | id 1 | code 1 | uic 1 | name_short 1 | name_medium 1 | name_long 1 | slug 1 | country 1 | type 1 | geo_lat 1 | geo_lng (11 rows) ãªããžã§ã¯ãã¹ãã¬ãŒãžåŽã«ãparquetãã¡ã€ã«ãäœæãããŸãã ã§ã¯ç¶ãããã£ãŠãããŸãã 以äžã³ãã³ãã¯parquetãã¡ã€ã«ã®æ
å ±ãååŸããŠããŸãã D FROM glob('s3://ducklake-poc/*') ; âââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ â file â â varchar â ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ†â s3://ducklake-poc/ducklake-01974989-7208-7460-964d-c17d34b116c7.parquet â âââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ D FROM 's3://ducklake-poc/*.parquet' LIMIT 10; âââââââââ¬ââââââââââ¬ââââ¬ââââââââââââââââââ¬ââââââââââââââââââ â id â code â ⊠â geo_lat â geo_lng â â int64 â varchar â â double â double â âââââââââŒââââââââââŒââââŒââââââââââââââââââŒâââââââââââââââââ†â 266 â HT â ⊠â 51.69048 â 5.29362 â â 269 â HTO â ⊠â 51.700553894043 â 5.3183331489563 â â 227 â HDE â ⊠â 52.4091682 â 5.893611 â â 8 â AHBF â ⊠â 50.7678 â 6.091499 â â 818 â AW â ⊠â 50.78036 â 6.070715 â â 51 â ATN â ⊠â 51.921326524551 â 6.5786272287369 â â 5 â AC â ⊠â 52.2785 â 4.977 â â 550 â EAHS â ⊠â 52.079796120944 â 7.0163583755493 â â 12 â AIME â ⊠â 45.55438 â 6.64869 â â 819 â ACDG â ⊠â 49.004048 â 2.571133 â âââââââââŽââââââââââŽââââŽââââââââââââââââââŽâââââââââââââââââ†â 10 rows 11 columns (4 shown) â âââââââââââââââââ ãã¥ãŒããªã¢ã«ã®éãã«å€æŽãå ããŸãã UPDATE nl_train_stations SET name_long='Johan Cruijff ArenA' WHERE code = 'ASB'; 倿Žãå ãããšãã¡ã€ã«ãå¢ããŠãã®ãããããŸãã FROM glob('s3://ducklake-poc/*') ; ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ â file â â varchar â âââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ†â s3://ducklake-poc/ducklake-01974993-3ba1-7387-ac08-101cab81f9f7.parquet â â s3://ducklake-poc/ducklake-01974994-9e69-7177-a6e5-253d9cf9d4af.parquet â â s3://ducklake-poc/ducklake-01974994-9e83-7c25-b00b-1f41f679902e-delete.par⊠â âââââââââââââââââââââââââââââââ éå»ã®ããŒã¿ã®ç¶æ
ãèšæ¶ããsnapshotäžèЧãèŠãããšãã§ããããã§ãã FROM postgres_ducklake.snapshots(); âââââââââââââââ¬âââââââââââââââââââââââââââââ¬âââââââââââââââââ¬ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ â snapshot_id â snapshot_time â schema_version â changes â â int64 â timestamp with time zone â int64 â map(varchar, varchar[]) â âââââââââââââââŒâââââââââââââââââââââââââââââŒâââââââââââââââââŒâââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ†â 0 â 2025-06-07 17:43:15.138+09 â 0 â {schemas_created=[main]} â â 1 â 2025-06-07 17:47:54.805+09 â 1 â {tables_created=[main.nl_train_stations], tables_inserted_into=[1]} â â 2 â 2025-06-07 17:49:26.108+09 â 1 â {tables_inserted_into=[1], tables_deleted_from=[1]} ããŒãžã§ã³ããšã«å
容ã確èªå¯èœã§ãã SELECT name_long FROM nl_train_stations AT (VERSION => 1) WHERE code = 'ASB'; nl_train_stations AT (VERSION => 2) WHERE code = 'âââââââââââââââââââââââââââ â name_long â â varchar â ââââââââââââââââââââââââââ†â Amsterdam Bijlmer ArenA â âââââââââââââââââââââââââââ SELECT name_long FROM nl_train_stations AT (VERSION => 2) WHERE code = 'ASB'; âââââââââââââââââââââââ â name_long â â varchar â ââââââââââââââââââââââ†â Johan Cruijff ArenA â âââââââââââââââ ã«ã¿ãã°ãããã¿ããããã«ã¯ä»¥äžã®ã³ãã³ãã䜿ããŸãã USE memory; DETACH postgres_ducklake; ãããŸã§ã§è²ã
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ãæ¯èŒããŠèªåçã« ãã€ã°ã¬ãŒã·ã§ã³ ãã¡ã€ã«ïŒ SQL ïŒãçæããããšãã§ããŸãã atlas migrate diff add_user_schema --env "local" --config "file://db/atlas.hcl" --to "file://db/schema.sql" # 以äžã®ããã«envãå©çšããã«çŽæ¥ãªãã·ã§ã³ãæå®ããŠãå®è¡å¯èœ atlas migrate diff --to "file://db/schema.sql" --dev-url "docker://postgres/16/dev" --dir "file://db/migrations" ãã®ã³ãã³ãã«ãããatlas/migrations ãã£ã¬ã¯ã ãªã«æ°ãã ãã€ã°ã¬ãŒã·ã§ã³ SQL ãèªåçæãããŸãã ãããGitã§ç®¡çããããšã§ã ã¹ããŒã 倿Žã®å±¥æŽãæç¢ºã«è¿œè·¡ã§ããŸãã ã³ãã³ãå®è¡æã« --env local ã®ããã«æå®ããããšã§ã atlas.hcl ã§å®çŸ©ããèšå®ãå©çšã§ããŸãã atlas migrate diffã³ãã³ãã®åãªãã·ã§ã³èª¬æ ãªãã·ã§ã³ 説æ --to "file://db/schema.sql" 宣èšçã«å®çŸ©ãããçæ³ç㪠ã¹ããŒã ãæå®ããŸãã --dev-url "docker://postgres/16/dev" DB ãã€ã°ã¬ãŒã·ã§ã³ çšã®äžæããŒã¿ããŒã¹ã®URLã§ãã Atlasã ã¹ããŒã æ¯èŒãè¡ãéã«ãã®DBäžã«çŸåšã® ã¹ããŒã ãäžæçã«æ§ç¯ããŸãã --dir "file://db/migrations" å·®åããçæããã ãã€ã°ã¬ãŒã·ã§ã³ ãã¡ã€ã«ãåºåãã ãã£ã¬ã¯ã ãªãæå®ããŸãã ããã« .sql ãã¡ã€ã«ãçæãããé åºä»ãã® ãã€ã°ã¬ãŒã·ã§ã³ å±¥æŽãšããŠç®¡çãããŸãã â» --dev-url ã«ã¯ãããŒã«ã«ã® PostgreSQL ãä»ã®æ¥ç¶å
ãæå®ããããšãå¯èœã§ãã ãã€ã°ã¬ãŒã·ã§ã³ ã®ããŒã«ã«DBãžã®é©çš çæããã ãã€ã°ã¬ãŒã·ã§ã³ ãã¡ã€ã«ã¯ã atlas migrate apply ã³ãã³ãã§ããŒã¿ããŒã¹ã«é©çšããããšãã§ããŸãã atlas migrate apply --env "local" --config "file://db/atlas.hcl" ãã®ã³ãã³ãã«ãããdb/migrations ã«ãã ãã€ã°ã¬ãŒã·ã§ã³ ãã¡ã€ã«ãé çªã«å®è¡ãããæå®ããããŒã¿ããŒã¹ã«åæ ãããŸãã ãã€ã°ã¬ãŒã·ã§ã³ çšDockerã€ã¡ãŒãžãäœæãã ArgoCDã®ãžã§ããã ãã€ã°ã¬ãŒã·ã§ã³ ãå®è¡ããããã«ãDockerã€ã¡ãŒãžãäœæããŸãã Dockerfileãäœæ # ./Dockerfile # localçš FROM arigaio/atlas:0.33.0-distroless AS migration-local WORKDIR /app COPY ./db/migrations/ /app/migrations COPY ./db/atlas.hcl /app/atlas.hcl CMD ["migrate", "apply", "--env", "local-docker", "--config", "file://atlas.hcl"] # prodçš FROM arigaio/atlas:0.33.0-distroless AS migration-prod WORKDIR /app COPY ./db/migrations/ /app/migrations COPY ./db/atlas.hcl /app/atlas.hcl CMD ["migrate", "apply", "--env", "prod", "--config", "file://atlas.hcl", "--baseline", "20250513060616"] prodçšã®ã¿ --baseline ãªãã·ã§ã³ãã€ããŠããã®ã¯ãprodç°å¢ã«ãã§ã«åæããŒã¿ããŒã¹ãååšããŠããããã§ãã éåžžãAtlas㯠ãã€ã°ã¬ãŒã·ã§ã³ å±¥æŽããŒãã«ïŒatlas_schema_revisionsïŒãååšããªããšãå
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