polyjit: port to new connect_str, only works with postgres
polyjit: port to new connect_str, only works with postgres

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Former-commit-id: 56f3a5c90a8991739d4d39d91c50920ea09ca2c6 [formerly f8a4f8822059b110c79e87ade2a1c3236bde9479] [formerly d33a1bbc0496fa8bfb6dca1d643881cff354b1e5 [formerly 2592e4690d667660f880ca96d7432a0a891ced9e]]
Former-commit-id: 2924f33c364f22d2bbce8bea5508ed57cbd707f0 [formerly 493f69b5f1d37e380173ed68c455ae33823c0166]
Former-commit-id: b060aa71302a4366f271351ef04479f56288ff63
PolyJIT/benchbuild,PolyJIT/benchbuild,PolyJIT/benchbuild,PolyJIT/benchbuild