MySQL implementation of \Drupal\Core

public Schema::dropIndex($table, $name) Drop

public Schema::dropPrimaryKey($table) Drop

protected Schema::createTableSql($name, $table)

public Schema::dropUniqueKey($table, $name)

public Schema::tableExists($table) Check

Maximum length of a column comment in MySQL. File core/lib/Drupal/Core/Database/Driver/mysql/Schema.php

public Schema::getComment($table, $column = NULL)

public Schema::fieldSetNoDefault($table, $field)

protected Schema::getNormalizedIndexes(array $spec)