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Re^4: DBI placeholders and like statement

by jfroebe (Parson)
on Jun 19, 2013 at 17:48 UTC ( #1039813=note: print w/replies, xml ) Need Help??

in reply to Re^3: DBI placeholders and like statement
in thread DBI placeholders and like statement

Depending on the DBMS, you could give it an index hint: from tableA (index ndx). You are correct though, most optimizers would simply give it a hard coded selectivity rating which almost always guarantees that an index won't be chosen for that particular column.

Jason L. Froebe

Blog, Tech Blog

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