Functional invocation error-no joins involved

Question

Windows server 2003
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
"CORE     10.2.0.1.0     Production"
TNS for 32-bit Windows: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
SELECT NAME,EMAIL,ADDRESS1,ADDRESS2,CONTACT_NAME,MOBILE,TELEPHONE
FROM (SELECT NAME,EMAIL,ADDRESS1,ADDRESS2,CONTACT_NAME,MOBILE,TELEPHONE
FROM MV_CAT_SEG_REG_PROD WHERE CATSEARCH(CAT_IDS,'1,' ,NULL)>0
AND ACT_STATUS='Y'
order by DBMS_RANDOM.value)
WHERE rownum < 8;
ORA-20000: Oracle Text error:
DRG-10849: catsearch does not support functional invocation
20000. 00000 - "%s"
*Cause:    The stored procedure 'raise_application_error'
was called which causes this error to be generated.
*Action:   Correct the problem as described in the error message or contact
the application administrator or DBA for more information.
the same query returns rows in our test environment which is
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
"CORE     10.2.0.1.0     Production"
TNS for 32-bit Windows: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
differences between the two environments
these are the indexes in production environment
LOOKING4     CAT_IDS_IDX     CAT_IDS     NONUNIQUE     VALID     DOMAIN     N     NO               NO
LOOKING4     CAT_TYPES_IDX     CAT_TYPES     NONUNIQUE     VALID     DOMAIN     N     NO               NO
LOOKING4     ACT_STATUS_IDX     ACT_STATUS     NONUNIQUE     VALID     NORMAL     N     NO               NO
and these are the ones in test environment
LOOKING4     CAT_IDS_IDX     CAT_IDS     NONUNIQUE     VALID     DOMAIN     N     NO               NO
LOOKING4     CAT_TYPES_IDX     CAT_TYPES     NONUNIQUE     VALID     DOMAIN     N     NO               NO
ok, one more difference,,, the test environment is a 32 bit machine and the production environment is a 64 bit
a bit of background
i need these 7 records(randomly selected from nearly 200 records each time) to send mail to all the people who access our website
there is no join involved here thats the little difference
please let me know if you need some other information
thanks in advance
also check
Re: oracle text error when generating random rows
thanks
Edited by: 946207 on Oct 8, 2012 8:25 PM

Answer 1

946207 wrote:
Ok
how about
SELECT * FROM
SELECT NAME,CAT_IDS,ACT_STATUS,ADDRESS1,ADDRESS2,CONTACT_NAME,MOBILE,TELEPHONE
FROM MV_CAT_SEG_REG_PROD WHERE CATSEARCH(CAT_IDS,'99,' ,NULL)>0
WHERE ACT_STATUS='Y'and rownum<3
order by DBMS_RANDOM.value
thanks in advanceWhat about it?
"WHERE ACT_STATUS='Y'" is the structured part of your query. Depending on how much that limits the rows, which is dependent upon the distribution of data, the optimizer may or may not choose functional invocation, which would cause the query to fail. The solution is to use a context index and contains. There is no reliable way to rewrite a query using a ctxcat index and catsearch to prevent it from failing at unpredictable times.
Additionally, the way that query is written, it will take the first 3 rows returned, then display them in random order. It will not order them randomly, then display the first rows from that randomly ordered set.