STMTSTATUS_AUTOINDEX top-level constant
int
const STMTSTATUS_AUTOINDEX
This is the number of rows inserted into transient indices that were created automatically in order to help joins run faster.
A non-zero value in this counter may indicate an opportunity to improvement performance by adding permanent indices that do not need to be reinitialized each time the statement is run.
Implementation
const STMTSTATUS_AUTOINDEX = 3;