Truncate on tables with FK's

Christopher Kings-Lynne <chriskl@familyhealth.com.au> writes:

Hmmm...could we allow truncate in cases where all the FK's on a table
refer only to that table itself?

Alvaro already did that and more ...

2005-01-26 22:17 tgl

* doc/src/sgml/ref/truncate.sgml, src/backend/catalog/heap.c,
src/backend/commands/tablecmds.c, src/backend/nodes/copyfuncs.c,
src/backend/nodes/equalfuncs.c, src/backend/parser/gram.y,
src/backend/tcop/utility.c, src/include/catalog/heap.h,
src/include/commands/tablecmds.h, src/include/nodes/parsenodes.h,
src/test/regress/expected/temp.out,
src/test/regress/expected/truncate.out,
src/test/regress/sql/temp.sql, src/test/regress/sql/truncate.sql:
Generalize TRUNCATE to support truncating multiple tables in one
command. This is useful because we can allow truncation of tables
referenced by foreign keys, so long as the referencing table is
truncated in the same command.

Alvaro Herrera

regards, tom lane