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Clarify the purpose of MTR_LOG_NONE

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dr-m committed Jun 16, 2019
1 parent e9795d0 commit a94638f1553f5947db6d48bab9e4951356b362a8
Showing with 3 additions and 1 deletion.
  1. +3 −1 storage/innobase/include/mtr0types.h
@@ -38,7 +38,9 @@ enum mtr_log_t {
/** Default mode: log all operations modifying disk-based data */
MTR_LOG_ALL = 21,

/** Log no operations and dirty pages are not added to the flush list */
/** Log no operations and dirty pages are not added to the flush list.
Set when applying log in crash recovery or when a modification of a
ROW_FORMAT=COMPRESSED page is attempted. */
MTR_LOG_NONE = 22,

/** Don't generate REDO log but add dirty pages to flush list */

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