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- Numeric Types – DuckDB 13419
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...pts to store negative numbers or values outside of the allowed range will result in an error. Name Aliases Min Max Size in bytes TINYINT INT1 - 2^7 2^7 - 1 1 SMALLINT INT2 , INT16 , SHORT - 2^15 2^15 - 1 2 INTEGER INT4 , INT32 , INT , SIGNED - 2^31 2^...NT2 , INT4 and INT8 for signed integers were inherited from PostgreSQL, where digits in these names indicate their size in bytes , whereas the type aliases for their unsigned equivalents, UINT8 , UINT16 , UINT32 and UINT64 , indicate their size in bit...common that the numbers in the minimum and maximum range all have the same storage size, UTINYINT is 1 byte, SMALLINT is 2 bytes, etc. But sometimes you need numbers that are even bigger than what is supported by a HUGEINT ! For these situations the V... - https://man.mtool.work/duckdb/1.3/sql/data_types/numeric.html
- COPY Statement – DuckDB 11889
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...COPY ( SELECT l_orderkey , l_comment FROM lineitem ) TO 'lineitem_part.parquet' ( RETURN_STATS ); filename count file_size_bytes footer_size_bytes column_statistics partition_keys lineitem_part.parquet 600572 8579141 1445 {'"l_comment"'={column_size_b...ytes=7642227, max=zzle. slyly, min=' Tiresias above the blit', null_count=0}, '"l_orderkey"'={column_size_bytes=935457, max=600000, min=1, null_count=0}} NULL Note: for nested columns (e.g., structs) the column statistics are defined...enerates one file per thread, rather than one file in total. This allows for faster parallel writing. BOOL false FILE_SIZE_BYTES If this parameter is set, the COPY process creates a directory which will contain the exported files. If a file exceeds th... - https://man.mtool.work/duckdb/1.3/sql/statements/copy.html
- SQL Quirks – DuckDB 11035
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...widths: UINT8 corresponds to UTINYINT because it's an 8-bit unsigned integer INT8 corresponds to BIGINT because it's an 8-byte signed integer Explanation: the n in the numeric type INTn and UINTn denote the width of the number in either bytes or bits.... INT1 , INT2 , INT4 correspond to the number of bytes, while INT16 , INT32 and INT64 correpsond to the number of bits. The same applies to UINT values. However, the value n = 8...is a valid choice for both the number of bits and bytes. For unsigned values, UINT8 corresponds to UTINYINT (8 bits). For signed values, INT8 corresponds to BIGINT (8 bytes). Exp... - https://man.mtool.work/duckdb/1.3/sql/dialect/sql_quirks.html
- Blob Type – DuckDB 10858
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...ect stored in the database system. The blob type can contain any type of binary data with no restrictions. What the actual bytes represent is opaque to the database system. Create a BLOB value with a single byte (170): SELECT '\xAA' :: BLOB ; Create a...BLOB value with three bytes (170, 171, 172): SELECT '\xAA\xAB\xAC' :: BLOB ; Create a BLOB value with two bytes (65, 66): SELECT 'AB' :: BLOB ; Blobs...in the database system in a VARCHAR field. Functions See Blob Functions . 関連キーワード database system store binary type bytes Create objects Blob blob xAA typically large Functions Documentation Types Copy Markdown Type Aliases Description Variable... - https://man.mtool.work/duckdb/1.3/sql/data_types/blob.html
- DuckDB_% Metadata Functions – DuckDB 9504
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...Y , ART_INDEX , COLUMN_DATA , METADATA , OVERFLOW_STRINGS , IN_MEMORY_TABLE , ALLOCATOR , EXTENSION . VARCHAR memory_usage_bytes The memory used (in bytes). BIGINT temporary_storage_bytes The disk storage used (in bytes). BIGINT duckdb_optimizers The...for debugging and testing purposes. Column Description Type path The name of the temporary file. VARCHAR size The size in bytes of the temporary file. BIGINT duckdb_types The duckdb_types() function provides metadata about the data types available in...then this is an alias of the type (as identified by the value in the logical_type column). BIGINT type_size The number of bytes required to represent a value of this type in memory. BIGINT logical_type The 'canonical' name of this data type. The same... - https://man.mtool.work/duckdb/1.3/sql/meta/duckdb_table_functions.html
- CSV Import – DuckDB 8989
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...s included as a fallback option. See example . TYPE[] default types buffer_size Size of the buffers used to read files, in bytes. Must be large enough to hold four lines and can significantly impact performance. BIGINT 16 * max_line_size columns Colum...delim Delimiter character used to separate columns within each line, e.g., , ; \t . The delimiter character can be up to 4 bytes, e.g., ?. Alias for sep . VARCHAR , delimiter Alias for delim ; only available in the COPY statement. VARCHAR , escape Str...rs encountered. BOOL false max_line_size or maximum_line_size . Not available in the COPY statement. Maximum line size, in bytes. BIGINT 2000000 names or column_names Column names, as a list. See example . VARCHAR[] (empty) new_line New line character... - https://man.mtool.work/duckdb/1.3/data/csv/overview.html
- Conversion between DuckDB and Python – DuckDB 8473
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...verts to the DATE type. We check against datetime.date.min and datetime.date.max to convert to -inf and +inf respectively. bytes bytes converts to BLOB by default, when it's used to construct a Value object of type BITSTRING , it maps to BITSTRING ins...se Blog In this article Object Conversion: Python Object to DuckDB int float datetime.datetime datetime.time datetime.date bytes list dict tuple numpy.ndarray and numpy.datetime64 Result Conversion: DuckDB Results to Python NumPy Pandas Apache Arrow P... - https://man.mtool.work/duckdb/1.3/clients/python/conversion.html
- Text Functions – DuckDB 8473
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...nteger) Converts integer to a human-readable representation using units based on powers of 2 (KiB, MiB, GiB, etc.). format_bytes(integer) Converts integer to a human-readable representation using units based on powers of 2 (KiB, MiB, GiB, etc.). from_...rator) Splits the string along the separator . strip_accents(string) Strips accents from string . strlen(string) Number of bytes in string . strpos(string, search_string) Returns location of first occurrence of search_string in string , counting from...on using units based on powers of 2 (KiB, MiB, GiB, etc.). Example formatReadableSize(16_000) Result 15.6 KiB Alias format_bytes format_bytes(integer) Description Converts integer to a human-readable representation using units based on powers of 2 (Ki... - https://man.mtool.work/duckdb/1.3/sql/functions/text.html
- Profiling – DuckDB 8312
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...valent of LATENCY OPERATOR_TYPE string The name of each operator QUERY_NAME string The query string RESULT_SET_SIZE uint64 bytes The size of the result ROWS_RETURNED uint64 absolute The number of rows returned by the query SYSTEM_PEAK_BUFFER_MEMORY ui...nt64 bytes Peak memory usage of all allocated buffers of the system during the query SYSTEM_PEAK_TEMP_DIR_SIZE uint64 bytes Peak size... - https://man.mtool.work/duckdb/1.3/dev/profiling.html
- DuckLake – DuckDB 7974
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...a: Column name Column type table_name VARCHAR schema_id BIGINT table_id BIGINT table_uuid UUID file_count BIGINT file_size_bytes BIGINT delete_file_count BIGINT delete_file_size_bytes BIGINT ducklake_table_insertions The ducklake_table_insertions func... - https://man.mtool.work/duckdb/1.3/core_extensions/ducklake.html
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