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- ATTACH and DETACH Statements – DuckDB 13961
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...Must be a power of two and within [16384, 262144]. Cannot be set for existing files. UBIGINT 262144 Name Qualification The fully qualified name of catalog objects contains the catalog , the schema and the name of the object. For example: Attach the da...col inside the table my_table : SELECT new_db.my_schema.my_table.col FROM new_db.my_schema.my_table ; Note that often the fully qualified name is not required. When a name is not fully qualified, the system looks for which entries to reference using...TEGER ); If we create a conflict (i.e., we have both a schema and a catalog with the same name) the system requests that a fully qualified path is used instead: CREATE SCHEMA new_db ; CREATE TABLE new_db.tbl ( i INTEGER ); Binder Error: Ambiguous refe... - https://man.mtool.work/duckdb/1.3/sql/statements/attach.html
- Unnesting – DuckDB 11392
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...b): SELECT unnest ({ 'a' : [ 1 , 2 , 3 ], 'b' : 88 }, recursive : = true ); Calling unnest with the recursive setting will fully unnest lists, followed by fully unnesting structs. This can be useful to fully flatten columns that contain lists within l...ts depth Unnesting generating recursive rows structs Unnest struct columns unnesting clause parameter Empty entry unnested fully within Recursive using used scalar multiple 関連するページ List Type SELECT Clause Pivot Internals Struct Data Type Struct... - https://man.mtool.work/duckdb/1.3/sql/query_syntax/unnest.html
- ALTER VIEW Statement – DuckDB 11392
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...view: ALTER VIEW v1 RENAME TO v2 ; ALTER VIEW changes the schema of an existing table. All the changes made by ALTER VIEW fully respect the transactional semantics, i.e., they will not be visible to other transactions until committed, and can be full...e that other views that rely on the table are not automatically updated. 関連キーワード changes schema existing view table fully Documentation Statements Copy Markdown Statement statement catalog Examples Rename made respect transactional semantics th... - https://man.mtool.work/duckdb/1.3/sql/statements/alter_view.html
- Startup & Shutdown – DuckDB 9541
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...rn this for a compatibility check. Syntax const char * duckdb_library_version ( ); duckdb_get_table_names Get the list of (fully qualified) table names of the query. Syntax duckdb_value duckdb_get_table_names ( duckdb_connection connection , const cha...: The connection for which to get the table names. query : The query for which to get the table names. qualified : Returns fully qualified table names (catalog.schema.table), if set to true, else only the (not escaped) table names. Return Value A duck...db_value of type VARCHAR[] containing the (fully qualified) table names of the query. Must be destroyed with duckdb_destroy_value. 関連キーワード duckdb database connectio... - https://man.mtool.work/duckdb/1.3/clients/c/connect.html
- Azure Extension – DuckDB 9074
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...so supported: SELECT * FROM 'az:// my_container / path /*.csv' ; SELECT * FROM 'az:// my_container / path /**' ; Or with a fully qualified path syntax: SELECT count ( * ) FROM 'az:// my_storage_account .blob.core.windows.net/ my_container / path / my_...rted: SELECT * FROM 'abfss:// my_filesystem / path /*.csv' ; SELECT * FROM 'abfss:// my_filesystem / path /**' ; Or with a fully qualified path syntax: SELECT count ( * ) FROM 'abfss:// my_storage_account .dfs.core.windows.net/ my_filesystem / path /...se the SCOPE configuration . Note that the SCOPE requires a trailing slash ( SCOPE 'azure://some_container/' ). If you use fully qualified path then the ACCOUNT_NAME attribute is optional. CONFIG Provider The default provider, CONFIG (i.e., user-confi... - https://man.mtool.work/duckdb/1.3/core_extensions/azure.html
- Complete API – DuckDB 8607
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...hat said, DuckDB's developers plan to carry out deprecations slowly as several of the deprecated methods do not yet have a fully functional alternative. Therefore, they will not removed before the alternative is available, and even then, there will be...rn this for a compatibility check. Syntax const char * duckdb_library_version ( ); duckdb_get_table_names Get the list of (fully qualified) table names of the query. Syntax duckdb_value duckdb_get_table_names ( duckdb_connection connection , const cha...: The connection for which to get the table names. query : The query for which to get the table names. qualified : Returns fully qualified table names (catalog.schema.table), if set to true, else only the (not escaped) table names. Return Value A duck... - https://man.mtool.work/duckdb/1.3/clients/c/api.html
- ALTER TABLE Statement – DuckDB 8607
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...ers ADD PRIMARY KEY ( i ); Syntax ALTER TABLE changes the schema of an existing table. All the changes made by ALTER TABLE fully respect the transactional semantics, i.e., they will not be visible to other transactions until committed, and can be full... - https://man.mtool.work/duckdb/1.3/sql/statements/alter_table.html
- CREATE TABLE Statement – DuckDB 8373
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...chema. While discouraged, their names can overlap with the names of the regular database tables. In these cases, use their fully qualified name, e.g., temp.main.t1 , for disambiguation. CREATE OR REPLACE The CREATE OR REPLACE syntax allows a new table...ype is derived from the expression, and the variant defaults to VIRTUAL : CREATE TABLE t1 ( x FLOAT , two_x AS ( 2 * x )); Fully specifying the same generated column for completeness: CREATE TABLE t1 ( x FLOAT , two_x FLOAT GENERATED ALWAYS AS ( 2 * x... - https://man.mtool.work/duckdb/1.3/sql/statements/create_table.html
- Loading JSON – DuckDB 8140
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...Format VARCHAR iso maximum_depth Maximum nesting depth to which the automatic schema detection detects types. Set to -1 to fully detect nested JSON types BIGINT -1 records Can be one of auto , true , false VARCHAR auto sample_size Option to define num...mited ) BOOL false maximum_depth Maximum nesting depth to which the automatic schema detection detects types. Set to -1 to fully detect nested JSON types BIGINT -1 maximum_object_size The maximum size of a JSON object (in bytes) UINTEGER 16777216 reco... - https://man.mtool.work/duckdb/1.3/data/json/loading_json.html
- COPY Statement – DuckDB 7906
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...T json , ARRAY true ); Syntax To ensure compatibility with PostgreSQL, DuckDB accepts COPY ... FROM statements that do not fully comply with the railroad diagram shown here. For example, the following is a valid statement: COPY tbl FROM 'tbl.csv' WITH...ARTITION_BY . BOOL false Syntax To ensure compatibility with PostgreSQL, DuckDB accepts COPY ... TO statements that do not fully comply with the railroad diagram shown here. For example, the following is a valid statement: COPY ( SELECT 42 AS x , 84 A... - https://man.mtool.work/duckdb/1.3/sql/statements/copy.html
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