MySQL :: MySQL 8.0 Reference Manual :: 10.15.8 The optimizer

PDF (US Ltr) - 43.2Mb
PDF (A4) - 43.3Mb
Man Pages (TGZ) - 296.3Kb
Man Pages (Zip) - 401.6Kb
Info (Gzip) - 4.3Mb
Info (Zip) - 4.3Mb

version 8.0

9.1

8.4 current
5.7

MySQL 8.0 Reference Manual / ... / The optimizer_trace System Variable

The optimizer_trace system variable has these on/off switches:

enabled: Enables (ON) or disables (OFF) tracing
one_line: If set to ON, the trace contains no whitespace, thus conserving space. This renders the trace difficult to read for humans, still usable by JSON parsers, since they ignore whitespace.

PREV HOME UP NEXT

PDF (US Ltr) - 43.2Mb
PDF (A4) - 43.3Mb
Man Pages (TGZ) - 296.3Kb
Man Pages (Zip) - 401.6Kb
Info (Gzip) - 4.3Mb
Info (Zip) - 4.3Mb