protected Schema::ensureIdentifiersLength($identifier)

public Schema::tableExists($table) Check

PostgreSQL implementation of \Drupal

public Schema::fieldSetDefault($table, $field, $default)

A cache of information about blob columns and sequences of tables. This is collected by

public Schema::changeField($table, $field, $field_new, $spec, $new_keys

public Schema::dropPrimaryKey($table) Drop

protected Schema::_createKeySql($fields)

protected Schema::resetTableInformation($table)

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