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Message Posted: Thu, 14 Jan 2010 @ 14:52:55 GMT
| Subj: || || Implicit CASTING issue |
| From: || || Rajiv Khurana |
I have a table TEST that has one row and one column. The column is defined as VARCHAR(240). I inserted an integer value = 1 into the field .
Then I ran the explian plan on the following query
EXPLAIN SELECT * FROM TEST
WHERE ID = 1
Looking at the explain plan I was just wondering how does the data get stored in the table. It look like exponential values are getting
generated. Any help on this would be appreciated.
" ID (FLOAT, FORMAT
'-9.99999999999999E-999'))= 1.00000000000000E 000") into Spool 1
(group_amps), which is built locally on the AMPs. The size of
Spool 1 is estimated with no confidence to be 8 rows (824 bytes).