.colString("sql_path", PATH_MAX, true)
.colString("default_collation_catalog", IDENT_MAX, true)
.colString("default_collation_schema", IDENT_MAX, true)
.colString("default_collation_name", IDENT_MAX, true);
//primary key (schema_name)
builder.table(TABLES)
.colString("table_catalog", IDENT_MAX, true)
.colString("table_schema", IDENT_MAX, false)
.colString("table_name", IDENT_MAX, false)
.colString("table_type", IDENT_MAX, false)
.colString("self_referencing_column", IDENT_MAX, true)