How to set up postgresql
Basic postgres source
Create new src_sql class.
And extract out common methods
Re-arrange src_postgres args
Get copy_to working for single postgresql table
Additional fixes (mostly escaping).
Complete Lahman db now loads
tbl_postgresql + move some methods to sql class
Get basic sql manip working with postgres
More aggregate functions
Better docs for src_postgres
Remove create option from postgresql
Fix misleading benchmarks
Baby steps towards grouping for postgresql
Use postgresql compatible explain syntax
Doc tweaks
Add translation for unary minus
Basic support for grouped mutate
Better strategy for summarise
Update collate
Add grouped subsetting example