Add parsing of schema indexes

pkg/schema/views.sql

@@ -22,3 +22,17 @@ create temporary view columns as
       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;