RFC/WIP: Add query execution features and column definition shorthands#2

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spion wants to merge 2 commits intoTokyoFarmer:masterfrom hfour:feature/exec-queries

+684-263

Commits on May 6, 2019

Define columns and send queries to executor
spion
committed

Commits on Oct 21, 2019

add type improvements from anydb-sql
spion
committed