create temporary view tables as
    select l.schema,
           l.name,
           l.type,
           l.wr as is_without_rowid,
           l.strict as is_strict
      from sqlite_schema s
 left join pragma_table_list l on s.name = l.name
     where s.type = 'table';

create temporary view columns as
    select tables.name as table_name,
           table_info.name as column_name,
           lower(table_info.type) as column_type,
           "notnull",
           dflt_value is not null as has_default_value,
           ifnull(dflt_value, 0) dflt_value,
           pk != 0 as is_primary_key,
           pk as primary_key_rank,
           fk."table" is not null as is_foreign_key,
           ifnull(fk."table", '') as fk_target_table,
           ifnull(fk."to", '') as fk_target_column
      from tables
      join pragma_table_info(tables.name) as table_info
 left join pragma_foreign_key_list(tables.name) as fk on fk."from" = column_name;

create temporary view indexes as
    select idx.name as index_name,
           tables.name as table_name,
           idx."unique" as is_unique
      from tables
      join pragma_index_list(tables.name) idx;

create temporary view index_columns as
    select indexes.index_name,
           idx_cols.name as column_name,
           idx_cols.seqno as rank
      from indexes
      join pragma_index_info(indexes.index_name) as idx_cols;