我试图用postpres连接dplyr函数
my_db <- src_postgres(dbname = 'mdb1252', user = "diego", password = "pass")
my_db
src: postgres 9.2.5 [postgres@localhost:5432/mdb1252]
tbls: alf, alturas, asociad, atenmed, base, bfa_boys_p_exp, bfa_boys_z_exp,
bfa_girls_p_exp, bfa_girls_z_exp, bres, c21200012012, c212000392011, c212000532011,
c21200062012, c212006222012, c212007352012, c212012112013, c212012242012,
c212012452012, c2222012242012, calles, cap, cap0110, casos_tbc_tr09, casos_tbctr09,
casosvadela, catpo, cbcvl, cie09, cie10, cie103d, cie103dantigua, cie10c, cie9a,
cie9mc, clasiarc, coalc, coddepto, codedades, codest, codlocaerbio, codprov, coheb,
cohec, cohep, cohiv, coho09_20110909_m, coign, combl, comet, comp, comport, conev,
conymad, copri, corci3cod, corci910, cores, corin, cotab, cutoi, cutto, …