`mini\Table\Wrappers\ExistsTable` class

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Documentation

Filters outer table rows based on existence in inner table

Implements WHERE EXISTS / NOT EXISTS semantics with memory-bounded algorithms:

Sort-merge when at least one side is indexed on correlation column
Block hash when neither side is indexed (processes outer in chunks)

// EXISTS (SELECT 1 FROM t2 WHERE t2.id = t1.id AND t2.cat = 'C5')
$filtered = $innerTable->eq('cat', 'C5');
$result = new ExistsTable($outerTable, $filtered, [['t1.id', 't2.id']], false);

// NOT EXISTS
$result = new ExistsTable($outerTable, $filtered, [['t1.id', 't2.id']], true);

Inheritance

Extends: mini\Table\AbstractTable

Implements: mini\Table\Contracts\SetInterface IteratorAggregate Countable Traversable mini\Table\Contracts\TableInterface

Properties (7)

private mini\Table\Contracts\TableInterface $outer

private mini\Table\Contracts\TableInterface $inner

private array $correlations

private bool $negated

protected ?Closure $compareFn

protected ?int $limit

protected int $offset

Methods (40)

public `__construct()`

Documentation missing

protected `materialize()`

Documentation missing

private `sortMergeExists()`

Sort-merge EXISTS: sort both sides and merge to find matches

private `sortMergeNotExists()`

Sort-merge NOT EXISTS: yield outer rows that have NO match in inner

private `blockHashExists()`

Block hash EXISTS: process outer in chunks, scan inner for each chunk

private `buildKey()`

Build composite hash key from row values

public `order()`

Documentation missing

public `count()`

Documentation missing

public `eq()`

Documentation missing

public `lt()`

Documentation missing

public `lte()`

Documentation missing

public `gt()`

Documentation missing

public `gte()`

Documentation missing

public `in()`

Documentation missing

public `like()`

Documentation missing

public `or()`

Documentation missing