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Do not use virtual (and hence redundant) WHERE-clause terms to restrict the

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content of a automatic partial index.  Show when an automatic partial index
is used in the EXPLAIN QUERY PLAN output.

FossilOrigin-Name: b9ad601eab1d7298d369267eb697c7fa1bc16985
This commit is contained in:
drh
2014-10-25 12:28:25 +00:00
parent 059b2d50e1
commit 051575cbf4
5 changed files with 15 additions and 10 deletions
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ext/rtree/rtree6.test
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@ -102,7 +102,7 @@ do_eqp_test rtree6.2.4.2 {
SELECT * FROM t1,t2 WHERE v=10 and x1<10 and x2>10
} {
0 0 0 {SCAN TABLE t1 VIRTUAL TABLE INDEX 2:C0E1}
0 1 1 {SEARCH TABLE t2 USING AUTOMATIC COVERING INDEX (v=?)}
0 1 1 {SEARCH TABLE t2 USING AUTOMATIC PARTIAL COVERING INDEX (v=?)}
}
do_eqp_test rtree6.2.5 {