Postgresql joins
Update namespace
Better src and tbl info when printing
Clean redoc
Fix S3 mismatch
Generic code for accessing lahman
Add benchmarking demo
Sort tbls when printing src
Tests for escaping missing values
One file each for data sets
Generic hflights db access
Ensure nrow is an integer
Translate if to select case
Generic method for getting query plan.
Add format param for postgresql
Clean extraction of db code