On 03/12/06, Tom Lane <[EMAIL PROTECTED]> wrote:
"Michael Guyver" <[EMAIL PROTECTED]> writes:
> ... Running the array_append version is faster by at least one order of
> magnitude in these examples.
Really? I see only about a 50% advantage (155 msec vs 105 msec) in both
8.1 and 8.2. What PG ve
"Michael Guyver" <[EMAIL PROTECTED]> writes:
> CREATE OR REPLACE FUNCTION test_v_01() RETURNS VARCHAR AS $$
> DECLARE
> buffer varchar;
> i int4;
> BEGIN
> buffer := 'the quick brown fox jumps over the lazy dog';
> FOR i IN 1..1000 LOOP
> buffer := buffer || 't
"Michael Guyver" <[EMAIL PROTECTED]> writes:
> ... Running the array_append version is faster by at least one order of
> magnitude in these examples.
Really? I see only about a 50% advantage (155 msec vs 105 msec) in both
8.1 and 8.2. What PG version are you running? What database encoding
are
Gents,
At risk of answering my own question to spur someone actually to share
their thoughts on this topic, I thought I'd provide a quick look at
the performance of the alternatives: either using the || operator, or
the array_append method.
-- SELECT * FROM test_v_01();
-- SELECT * FROM test_v_0
