Cake\Database\Schema\PostgresSchema::createTableSql PHP Method

    public function createTableSql(Table $table, $columns, $constraints, $indexes)
    {
        $content = array_merge($columns, $constraints);
        $content = implode(",\n", array_filter($content));
        $tableName = $this->_driver->quoteIdentifier($table->name());
        $temporary = $table->temporary() ? ' TEMPORARY ' : ' ';
        $out = [];
        $out[] = sprintf("CREATE%sTABLE %s (\n%s\n)", $temporary, $tableName, $content);
        foreach ($indexes as $index) {
            $out[] = $index;
        }
        foreach ($table->columns() as $column) {
            $columnData = $table->column($column);
            if (isset($columnData['comment'])) {
                $out[] = sprintf('COMMENT ON COLUMN %s.%s IS %s', $tableName, $this->_driver->quoteIdentifier($column), $this->_driver->schemaValue($columnData['comment']));
            }
        }
        return $out;
    }