Add Postgres-specific statements PREPARE, EXECUTE and DEALLOCATE#243

Merged

nickolay merged 4 commits intoapache:mainfrom

silathdiir:add-prepare-execute-deallocate-as-top-level-statements

Jul 28, 2020

Commits on Jul 27, 2020

Adds top-statements PREPARE, EXECUTE and DEALLOCATE for Postgres-specific feature prepared statement.
silathdiir
committed
Fixes `cargo clippy` issue.
silathdiir
committed

Commits on Jul 28, 2020