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Variant Type 11496
The VARIANT type stores typed, binary data where each row is self-contained with its own type information. This differs from the JSON type , which is physically stored as text. Because type metadata is embedded per-value, VARIANT provides b ... etter compression and query performance than JSON for semi-structured data. The VARIANT type is inspired by Snowflake's semi-structured VARIANT data type . It is available in Parquet since 2025 and also supported by DuckDB's Parquet reader ... tion: COPY events TO 'events.parquet' ( FORMAT parquet, SHREDDING {'data': 'STRUCT(name VARCHAR, age INTEGER)'} ); Reading Snowflake VARIANT from Parquet DuckDB can read shredded VARIANT Parquet files produced by Snowflake, automatically reconstructing th ...
https://man.mtool.work/duckdb/2.0/sql/data_types/variant.html
ODBC Extension 9431
Please note that DuckDB also offers an ODBC client , which allows you to connect to DuckDB via ODBC from other applications. The odbc_scanner extension allows connecting to other databases (using their ODBC drivers ) and run queries with th ... status Tier 2: PostgreSQL: basic types covered MySQL/MariaDB: basic types covered Firebird: types coverage status Tier 3: Snowflake: types coverage status ClickHouse: basic types covered Spark: basic types covered Arrow Flight SQL: basic types covered In ... t_db; Firebird: Driver={Firebird ODBC Driver};Database=127.0.0.1/3050:C:/path/to/test.fdb;UID=SYSDBA;PWD=pwd;CHARSET=UTF8; Snowflake: Driver={SnowflakeDSIIDriver};Server=foobar-ab12345.snowflakecomputing.com;Database=SNOWFLAKE_SAMPLE_DATA;UID=username;PWD ...
https://man.mtool.work/duckdb/2.0/core_extensions/odbc/overview.html
ODBC Extension Functions 6938
odbc_begin_transaction odbc_bind_params odbc_close odbc_commit odbc_connect odbc_copy odbc_create_params odbc_list_data_sources odbc_list_drivers odbc_query odbc_rollback odbc_begin_transaction odbc_begin_transaction(conn_handle BIGINT) -> ... with nanosecond precision timestamp_params_as_sf_timestamp_ntz ( BOOLEAN , default: false ): pass TIMESTAMP parameters as Snowflake's TIMESTAMP_NTZ timestamptz_params_as_ss_timestampoffset ( BOOLEAN , default: false ): pass TIMESTAMP_TZ parameters as SQL ...
https://man.mtool.work/duckdb/2.0/core_extensions/odbc/functions.html
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