No doesn't seem to have made any difference. Still the same error
psql:/tmp/ledgersmb/1.2-1.3-upgrade.sql:30: ERROR: null value in column
"heading" violates not-null constraint
CONTEXT: SQL statement "INSERT INTO account (accno, description,
category, gifi_accno, heading, contra, tax) VALUES ( $1 , $2 , $3 ,
$4 , $5 , $6 , $7 )"
PL/pgSQL function "account_save" line 47 at SQL statement
Create a heading with an accno that comes before any of your others in
alphanumeric collation order, and then try again.