Any null values in first name??
-Steve
On Thu, Sep 10, 2015 at 12:35 PM, Ken Tanzer <ken.tan...@gmail.com> wrote:
> Hi. In a table that includes these columns:
>
> my_db=> \d tbl_client
> ...
> name_last | character varying(40) | not null
> name_first | character varying(30) | not null
> ...
>
> I am extremely puzzled by the sorting of the "CLARKE"s in this list:
>
> my_db=> SELECT name_last,length(name_last),name_last='CLARK' AS
> clark,name_last='CLARKE' AS clarke FROM tbl_client WHERE name_last ILIKE
> 'CLARK%' OR name_last ILIKE 'ADAMS%' ORDER BY name_last || ', ' ||
> name_first;
> name_last | length | clark | clarke
> -----------+--------+-------+--------
> ADAMS | 5 | f | f
> ADAMS | 5 | f | f
> ADAMS | 5 | f | f
> ADAMS | 5 | f | f
> ADAMS | 5 | f | f
> ADAMS | 5 | f | f
> ADAMSON | 7 | f | f
> CLARK | 5 | t | f
> CLARK | 5 | t | f
> CLARKE | 6 | f | t
> CLARKE | 6 | f | t
> CLARKE | 6 | f | t
> CLARK | 5 | t | f
> CLARK | 5 | t | f
> CLARK | 5 | t | f
> CLARK | 5 | t | f
> CLARK | 5 | t | f
> (17 rows)
>
> The ADAMS are included just to show a similar example is ordering
> correctly. I put the length and equality test columns in to try to make
> sure there weren't some bizarre characters in the data. This is only
> happening on one particular database. I did a reindex on the table just
> for good measure. If I remove the name_first piece of the ORDER BY (which
> doesn't seem like it should matter), it sorts as expected:
>
> my_db=> SELECT name_last,length(name_last),name_last='CLARK' AS
> clark,name_last='CLARKE' AS clarke FROM tbl_client WHERE name_last ILIKE
> 'CLARK%' OR name_last ILIKE 'ADAMS%' ORDER BY name_last || ', '
>
> ;
> name_last | length | clark | clarke
> -----------+--------+-------+--------
> ADAMS | 5 | f | f
> ADAMS | 5 | f | f
> ADAMS | 5 | f | f
> ADAMS | 5 | f | f
> ADAMS | 5 | f | f
> ADAMS | 5 | f | f
> ADAMSON | 7 | f | f
> CLARK | 5 | t | f
> CLARK | 5 | t | f
> CLARK | 5 | t | f
> CLARK | 5 | t | f
> CLARK | 5 | t | f
> CLARK | 5 | t | f
> CLARK | 5 | t | f
> CLARKE | 6 | f | t
> CLARKE | 6 | f | t
> CLARKE | 6 | f | t
> (17 rows)
>
> I tried selecting those 17 rows from tbl_client into a new table, and get
> the same odd behavior. However, if I run with new data I get an expected
> order:
>
> CREATE TEMP TABLE test (
> name_first VARCHAR(40),
> name_last VARCHAR(30)
>
> );
>
> INSERT INTO test VALUES ('JOE','CLARKE'),('BILL','CLARK');
>
> SELECT * FROM test ORDER BY name_last;
> SELECT * FROM test ORDER BY name_last || ', ' || name_first;
>
> Any thoughts about what's going on, what to do about it, or what obvious
> point I missing? Thanks in advance!
>
> my_db=> SELECT version();
> version
>
>
> ----------------------------------------------------------------------------------------------------------------
> PostgreSQL 9.2.13 on x86_64-unknown-linux-gnu, compiled by gcc (GCC)
> 4.4.7 20120313 (Red Hat 4.4.7-11), 64-bit
> (1 row)
>
> Ken
>
>
>
> --
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