pub struct RawBlock { /* private fields */ }
Expand description

Raw data block format (B for bytes):

+-----+----------+---------------+-----------+-----------------------+-----------------+
| len | group id | col_schema... | length... | (bitmap or offsets    | col data)   ... |
| 4B  | 8B       | (2+4)B * cols | 4B * cols | (row+7)/8 or 4 * rows | length[col] ... |
+-----+----------+---------------+-----------+-----------------------+-----------------+

The length of bitmap is decided by number of rows of this data block, and the length of each column data is recorded in the first segment, next to the struct header

Implementations

Set table name of the block

Set table name of the block

Set field names of the block

Number of columns

Number of rows

Precision for current block.

Get field names.

Data view in columns.

Data view in rows.

Get one value at (row, col) of the block.

Get one value at (row, col) of the block.

Trait Implementations

Read inlined bytes into object.
Write inlined bytes to a writer.
Write inlined bytes with specific options
Get inlined bytes as vector.
Get inlined bytes as printable string, all the bytes will displayed with escaped ascii code.
Formats the value using the given formatter. Read more
Read inlined bytes into object.
Write inlined bytes to a writer.
Write inlined bytes with specific options
Get inlined bytes as vector.
Get inlined bytes as printable string, all the bytes will displayed with escaped ascii code.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
Converts self into T using Into<T>. Read more
Causes self to use its Binary implementation when Debug-formatted. Read more
Causes self to use its Display implementation when Debug-formatted. Read more
Causes self to use its LowerExp implementation when Debug-formatted. Read more
Causes self to use its LowerHex implementation when Debug-formatted. Read more
Causes self to use its Octal implementation when Debug-formatted. Read more
Causes self to use its Pointer implementation when Debug-formatted. Read more
Causes self to use its UpperExp implementation when Debug-formatted. Read more
Causes self to use its UpperHex implementation when Debug-formatted. Read more
Formats each item in a sequence. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Pipes by value. This is generally the method you want to use. Read more
Borrows self and passes that borrow into the pipe function. Read more
Mutably borrows self and passes that borrow into the pipe function. Read more
Borrows self, then passes self.borrow() into the pipe function. Read more
Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more
Borrows self, then passes self.as_ref() into the pipe function.
Mutably borrows self, then passes self.as_mut() into the pipe function. Read more
Borrows self, then passes self.deref() into the pipe function.
Mutably borrows self, then passes self.deref_mut() into the pipe function. Read more
Immutable access to a value. Read more
Mutable access to a value. Read more
Immutable access to the Borrow<B> of a value. Read more
Mutable access to the BorrowMut<B> of a value. Read more
Immutable access to the AsRef<R> view of a value. Read more
Mutable access to the AsMut<R> view of a value. Read more
Immutable access to the Deref::Target of a value. Read more
Mutable access to the Deref::Target of a value. Read more
Calls .tap() only in debug builds, and is erased in release builds.
Calls .tap_mut() only in debug builds, and is erased in release builds. Read more
Calls .tap_borrow() only in debug builds, and is erased in release builds. Read more
Calls .tap_borrow_mut() only in debug builds, and is erased in release builds. Read more
Calls .tap_ref() only in debug builds, and is erased in release builds. Read more
Calls .tap_ref_mut() only in debug builds, and is erased in release builds. Read more
Calls .tap_deref() only in debug builds, and is erased in release builds. Read more
Calls .tap_deref_mut() only in debug builds, and is erased in release builds. Read more
Attempts to convert self into T using TryInto<T>. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.