Hi,
I have Join condition in the query having one of the column is skewed. The Explain Plan is showing 3 Min time only
at this join.
Can anybody help me solve this.
LEFT JOIN
(
SELECT
COL1, COL2
FROM
(
TABLE A ,
TABLE B,
TABLE C
WHERE A.COL1 = B.COL2 /* HERE A.COL1 IS HIGHLY SKEWED */
AND B.COL = C.COL
AND A.COL = C.COL
)
↧