Hello all! Help me please! I'm having the table "mytable": CREATE TABLE mytable ( a1 char(6) not null, a2 char(1) not null, a3 char(15) not null, S1 char(8) not null, S2 char(6) not null, a4 integer not null, a5 integer not null ); I'm having a trouble with follow SQL-query: SELECT min(S1 || S2), max(S1 || S2) FROM mytable; If the table in question is the not large in the database -- about 120 000 rows then execution OK. If the table in question -- about 160 000 rows then not execution. Postmaster output to stderr: FATAL: 1 Memory exhausted in AllocSetAlloc() Please, tell me - what can I do?! ------------------------------------------------------------------------------ DBMS: PostgreSQL 7.0.2 OS: SCO UnixWare 2.1.3 Machine: HP Netserver E30, Pentium 166, 128Mb RAM, 4Gb and 9Gb Wide-SCSI HDD Best regards, Igor Avtaev