|_.  layer_type   |_. table_name   |_. geometry_column   |_. ordinal   |_. column_name   |_. null_values   |_. integer_values   |_. double_values   |_. text_values   |_. blob_values   |_. max_size   |_. integer_min   |_. integer_max   |_. double_min   |_. double_max   |