RE: CBO and cartesian product

2003-10-13 Thread John Kanagaraj
e opinions and facts contained in this message are entirely mine and do not reflect those of my employer or customers ** >-Original Message- >From: Tim Gorman [mailto:[EMAIL PROTECTED] >Sent: Saturday, October 11, 2003 11:14 AM >To: Multiple recipients of list ORACLE-L >Subject: Re:

Re: CBO and cartesian product

2003-10-11 Thread Tim Gorman
Here is the short answer: = * Set OPTIMIZER_INDEX_CACHING to 90 * Make sure that DB_FILE_MULTIBLOCK_READ_COUNT is not overly high * Also, consider gathering column-level statistics on some of the indexed columns involved, especially if the query in question

CBO and cartesian product

2003-10-11 Thread Dilip
Hi List, DB version - 8174. (Oracle Apps 11.5.4). One of the customized report started running very slowly. One query was taking more than 3 GB of TEMP tablespace for 'HASH' type segment and erroring out after 2 hours for a lack of space in TEMP. Tkprof showed that it is doing Cartesian Sort