ParquetFileBatches implements OffsetSkippingFileBatches
FinalYes
Interfaces
- OffsetSkippingFileBatches
Methods
- __construct() : mixed
- batches() : Generator<mixed, void>
- close() : void
- describe() : Description|null
- fromDescription() : static
Methods
__construct()
public
__construct(ParquetEngine $engine, Options $options, array<int, string> $columns, null|DerivedSchema $derived[, null|ParquetSourceFile $firstFile = null ]) : mixed
Parameters
- $engine : ParquetEngine
- $options : Options
- $columns : array<int, string>
-
the columns to read, every one when empty
- $derived : null|DerivedSchema
-
the schema every file must match; null under unionByName
- $firstFile : null|ParquetSourceFile = null
-
the file the schema pass kept open, read instead of opened again; never described
batches()
public
batches(FileRead $read, Criteria $criteria, SourceFile $source, Schema $body, Backend $backend, ReadWindow $window) : Generator<mixed, void>
Parameters
- $read : FileRead
- $criteria : Criteria
- $source : SourceFile
- $body : Schema
- $backend : Backend
- $window : ReadWindow
Tags
Return values
Generator<mixed, void>close()
public
close() : void
describe()
public
describe() : Description|null
Return values
Description|nullfromDescription()
public
static fromDescription(array<string|int, mixed> $data, Rebuild $rebuild) : static
Parameters
- $data : array<string|int, mixed>
- $rebuild : Rebuild