21.11 The INFORMATION_SCHEMA OPTIMIZER_TRACE Table
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21.11 The INFORMATION_SCHEMA OPTIMIZER_TRACE Table

The OPTIMIZER_TRACE table provides information produced by the optimizer tracing capability. To enable tracking, use the optimizer_trace system variable. For details, see MySQL Internals: Tracing the Optimizer.

The OPTIMIZER_TRACE table was added in MySQL 5.6.3.

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21.10 The INFORMATION_SCHEMA KEY_COLUMN_USAGE Table Home 21.12 The INFORMATION_SCHEMA PARAMETERS Table