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- Blob Functions – DuckDB 12469
- This page is for DuckDB 1.3, which is outdated.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
...haracters into literal encoding. from_base64(string) Converts a base64 encoded string to a character string ( BLOB ). from_binary(value) Converts a value from binary representation to a blob. from_hex(value) Converts a value from hexadecimal representa...ase64 encoded string. to_hex(blob) Converts blob to VARCHAR using hexadecimal encoding. unbin(value) Converts a value from binary representation to a blob. unhex(value) Converts a value from hexadecimal representation to a blob. arg1 || arg2 Descriptio...ng) Description Converts a base64 encoded string to a character string ( BLOB ). Example from_base64('QQ==') Result A from_binary(value) Description Converts a value from binary representation to a blob. Example from_binary('0110') Result \x06 Alias un... - https://man.mtool.work/duckdb/1.3/sql/functions/blob.html
- Text Functions – DuckDB 11808
- This page is for DuckDB 1.3, which is outdated.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
...= max . width defaults to 80. base64(blob) Converts a blob to a base64 encoded string. bin(string) Converts the string to binary representation. bit_length(string) Number of bits in a string . char_length(string) Number of characters in string . chara...wers of 2 (KiB, MiB, GiB, etc.). from_base64(string) Converts a base64 encoded string to a character string ( BLOB ). from_binary(value) Converts a value from binary representation to a blob. from_hex(value) Converts a value from hexadecimal representa...dix , optionally padding with leading zeros to min_length . to_base64(blob) Converts a blob to a base64 encoded string. to_binary(string) Converts the string to binary representation. to_hex(string) Converts the string to hexadecimal representation. tr... - https://man.mtool.work/duckdb/1.3/sql/functions/text.html
- Extension Distribution – DuckDB 10755
- This page is for DuckDB 1.3, which is outdated.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
.... For example, for the Python client, see the Loading and Installing Extensions section in the Python API documentation . Binary Compatibility To avoid binary compatibility issues, the binary extensions distributed by DuckDB are tied both to a specifi...c DuckDB version and a platform . This means that DuckDB can automatically detect binary compatibility between it and a loadable extension. When trying to load an extension that was compiled for a different vers...extensions DuckDB duckdb repository Extensions packages platforms load over httpfs custom osx signed client local example binary structure Extension binaries them following AArch macOS 関連するページ Installing Extensions Extensions Advanced Installat... - https://man.mtool.work/duckdb/1.3/extensions/extension_distribution.html
- Blob Type – DuckDB 10629
- 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
...mat Pivot Sitemap Live Demo Documentation / SQL / Data Types Copy Markdown Blob Type Name Aliases Description BLOB BYTEA , BINARY , VARBINARY Variable-length binary data The blob ( B inary L arge OB ject) type represents an arbitrary binary object stor...ed 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 si...to the file 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 Descripti... - https://man.mtool.work/duckdb/1.3/sql/data_types/blob.html
- Extensions – DuckDB 10362
- 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
...ot all, available core extensions. For the full list, we maintain a list of core extensions . Built-In Extensions DuckDB's binary distribution comes standard with a few built-in extensions. They are statically linked into the binary and can be used as...built-in available in DuckDB, two steps need to happen: Extension installation is the process of downloading the extension binary and verifying its metadata. During installation, DuckDB stores the downloaded extension and some metadata in a local direc...ds to. This means that installation needs to happen only once. Extension loading is the process of dynamically loading the binary into a DuckDB instance. DuckDB will search the local extension directory for the installed extension, then load it to make... - https://man.mtool.work/duckdb/1.3/extensions/overview.html
- Extensions – DuckDB 9717
- 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
...mat Extensions in DuckDB are binaries to be dynamically loaded via dlopen . A cryptographical signature is appended to the binary. An extension in DuckDB-Wasm is a regular Wasm file to be dynamically loaded via Emscripten's dlopen . A cryptographical s...al disk. The LOAD semantic in native embeddings of DuckDB is to (optionally) perform signature checks and dynamic load the binary with the main DuckDB binary. In DuckDB-Wasm, INSTALL is a no-op given there is no durable cross-session storage. The LOAD...n tampered with. Extension signature verification can be disabled via a configuration option. Signing is a property of the binary itself, so copying a DuckDB extension (say to serve it from a different location) will still keep a valid signature (e.g.,... - https://man.mtool.work/duckdb/1.3/clients/wasm/extensions.html
- Versioning of Extensions – DuckDB 9182
- 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
...ons Extension Versioning Most software has some sort of version number. Version numbers serve a few important goals: Tie a binary to a specific state of the source code Allow determining the expected feature set Allow determining the state of the APIs...build of the aws extension with the latest stable version of DuckDB. From Nightly DuckDB When DuckDB CI produces a nightly binary of DuckDB itself, the binaries are distributed with a set of extensions that are pinned at a specific version. This extens...extensions are compiled, they are tied to a specific version of DuckDB. What this means is that, for example, an extension binary compiled for version 0.10.3 does not work for version 1.0.0. In most cases, this will not cause any issues and is fully tr... - https://man.mtool.work/duckdb/1.3/extensions/versioning_of_extensions.html
- PostgreSQL Extension – DuckDB 8931
- This page is for DuckDB 1.3, which is outdated. Switch to the current documentation . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Ove
...nd DuckDB: COPY postgres_db.tbl TO 'data.parquet' ; COPY postgres_db.tbl FROM 'data.parquet' ; These copies use PostgreSQL binary wire encoding . DuckDB can also write data using this encoding to a file which you can then load into PostgreSQL using a c...ur choosing if you would like to do your own connection management: COPY 'data.parquet' TO 'pg.bin' WITH ( FORMAT postgres_binary ); The file produced will be the equivalent of copying the file to PostgreSQL using DuckDB and then dumping it from Postgr...l or another client: DuckDB: COPY postgres_db.tbl FROM 'data.parquet' ; PostgreSQL: \ copy tbl TO 'data.bin' WITH ( FORMAT BINARY ); You may also create a full copy of the database using the COPY FROM DATABASE statement : COPY FROM DATABASE postgres_db... - https://man.mtool.work/duckdb/1.3/core_extensions/postgres.html
- Logical Operators – DuckDB 8931
- 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
...ple, NULL AND false will evaluate to false , and NULL OR true will evaluate to true . Below are the complete truth tables. Binary Operators: AND and OR a b a AND b a OR b true true true true true false false true true NULL NULL true false false false f...kdown Logical following available uses three valuad logic system Note involving always example Below complete truth tables Binary 関連するページ Expressions Comparisons Boolean Type Relational API on Pandas Tuning Workloads Overview of DuckDB Internals...Report content issue © 2026 DuckDB Foundation, Amsterdam NL DuckDB Home Code of Conduct Trademark Use Blog In this article Binary Operators: AND and OR Unary Operator: NOT... - https://man.mtool.work/duckdb/1.3/sql/expressions/logical_operators.html
- Collations – DuckDB 8789
- 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
.... The user must choose which collation they want to use when performing sorting and comparison operations. By default, the BINARY collation is used. That means that strings are ordered and compared based only on their binary contents. This makes sense...t is, however, by far the fastest method of performing ordering and comparisons. Hence it is recommended to stick with the BINARY collation unless required otherwise. The BINARY collation is also available under the aliases C and POSIX . Warning Collat... - https://man.mtool.work/duckdb/1.3/sql/expressions/collations.html
DuckDB 1.3 Documentation / man.mtool.work