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SQL Quirks – DuckDB 12996
This page is for DuckDB 1.3, which is outdated.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 ... es use a zero-based indexing . Types UINT8 vs. INT8 UINT8 and INT8 are aliases to integer types of different 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 Explan ... 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). Expressions Results That May Surprise You E ... ut is semantically applied before both (unlike the LIMIT clause). 関連キーワード PostgreSQL list Compatible number because corresponds bytes bits DuckDB indexing integer types it's values extract clause others Standard different empty aggregate functions re ...
https://man.mtool.work/duckdb/1.3/sql/dialect/sql_quirks.html
Prepared Statements – DuckDB 9633
This page is for DuckDB 1.3, which is outdated.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 ... DuckDB support using prepared statements with auto-incremented indexing, i.e., the position of the parameters in the query corresponds to their position in the execution statement. For example: PREPARE query_person AS SELECT * FROM person WHERE starts_with ... ( name , $ 2 ) AND age >= $ 1 ; Using the CLI client, the statement is executed as follows. Note that the first parameter corresponds to $1 , the second to $2 , and so on. EXECUTE query_person ( 40 , 'B' ); Named Parameters: $parameter DuckDB also supports ...
https://man.mtool.work/duckdb/1.3/sql/query_syntax/prepared_statements.html
Aggregate Functions – DuckDB 8243
This page is for DuckDB 1.3, which is outdated.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 ... it_xor(arg) Returns the bitwise XOR of all bits in a given expression. bitstring_agg(arg) Returns a bitstring whose length corresponds to the range of the non-null (integer) values, with bits set at the location of each (distinct) value. bool_and(arg) Retur ... bits in a given expression. Example bit_xor(A) Alias(es) - bitstring_agg(arg) Description Returns a bitstring whose length corresponds to the range of the non-null (integer) values, with bits set at the location of each (distinct) value. Example bitstring_a ...
https://man.mtool.work/duckdb/1.3/sql/functions/aggregates.html
Profiling – DuckDB 8042
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 ... a corresponding metric that follows the template: OPTIMIZER_ OPTIMIZER_NAME . For example, the OPTIMIZER_JOIN_ORDER metric corresponds to the JOIN_ORDER optimizer. Additionally, the following metrics are available to support the optimizer metrics: ALL_OPTIM ...
https://man.mtool.work/duckdb/1.3/dev/profiling.html
GROUPING SETS – DuckDB 8042
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 ... en the return value and the grouping set, you can think of GROUPING_ID(y, q, m) writing to a bitfield, where the first bit corresponds to the last expression passed to GROUPING_ID() , the second bit to the one-but-last expression passed to GROUPING_ID() , a ...
https://man.mtool.work/duckdb/1.3/sql/query_syntax/grouping_sets.html
Vectors – DuckDB 7841
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 actual string value of the enum, the duckdb_enum_dictionary_value function must be used to obtain the enum value that corresponds to the given dictionary entry. Note that the enum dictionary is the same for the entire column – and so only needs to be c ...
https://man.mtool.work/duckdb/1.3/clients/c/vector.html
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