store config for plx in userland
bootstrap helper for building views and rules
guard build_rules and build_views variable in closures
limit filter select to avoid multiple rules
move sql related functions into sql.ls
extract build_view_source
create views with columns and computed columns
log error
support filters with $query and fix column field spec
ensure the CTE-touch expressions have exactly one record
refactor select_columns
restore order-by
support relational column definition
smoke pg93
Merge branch 'master' into feature/auth