On 08/21/2013 07:20 PM, 高健 wrote: Hi: I have heard that Heap-Only Tuples is introduce from 8.3. And I am searching information for it. How can I get a detailed information of HOT?http://git.postgresql.org/gitweb/?p=postgresql.git;a=blob;f=src/backend/access/heap/README.HOT;hb=HEAD For example: according to a table, How many tuples are heap only tuples , and how many are not? And also , Is there any options which can influence HOT occurrance? Best Regards -- Adrian Klaveradrian.klaver@gmail.com
Hi: I have heard that Heap-Only Tuples is introduce from 8.3. And I am searching information for it. How can I get a detailed information of HOT?
For example: according to a table, How many tuples are heap only tuples , and how many are not? And also , Is there any options which can influence HOT occurrance? Best Regards
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