On 8/21/07, Bill Thoen <bthoen@xxxxxxxxxx> wrote: > How would you suggest I try to track down this problem? > I run the following query: > > SELECT a.* FROM compliance_2006 a, ers_regions b > WHERE a.fips_st_cd=b.fips_st > AND a.fips_cnty_cd=b.fips_cou AND b.region =1 > AND a.fips_st_cd='17' AND a.fips_cnty_cd='003'; > > and it works. But when I try this: > > SELECT a.* FROM compliance_2006 a, ers_regions b > WHERE a.fips_st_cd=b.fips_st > AND a.fips_cnty_cd=b.fips_cou AND b.region =1 > AND a.fips_st_cd='17' ; > > psql dies with the message: > Segmentation Fault. so the client psql is what's dieing right? In that case you likely are getting too big a result set for psql to handle at once. Trying declaring a cursor to hold your query and fetching 100 or 1000 or so rows at a time. Just guessing. What's the exact text of the error message? ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match