Merged cset:
Copy of
commit d1bb19b8f751875472211312c8e810143a7ba4b6
Author: Manuel Ung <mung@fb.com>
Date: Fri Feb 3 11:50:34 2017 -0800
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Add cardinality stats to information schema
commit d1bb19b8f751875472211312c8e810143a7ba4b6
Author: Manuel Ung <mung@fb.com>
Date: Fri Feb 3 11:50:34 2017 -0800
Add cardinality stats to information schema
Summary: This adds cardinality stats to the INFORMATION_SCHEMA.ROCKSDB_INDEX_FILE_MAP table. This is the only missing user collected properties from SST files that we don't expose, which is useful for debugging cardinality bugs.
Reviewed By: hermanlee
Differential Revision: D4509156
fbshipit-source-id: 2d3918a
(why are table reads/writes/updates collected in ha_statistics?
this structure was intended for table statistics that the engine
reports.. and now it is also used for engine-agnostic statistics
like rows_read, rows_requested, etc?)
copy of
commit 86587affafe77ef555f7c3839839de44f0f203f3
Author: Tian Xia <tianx@fb.com>
Date: Tue Oct 4 10:01:52 2016 -0700
Allow filtering of show commands through admission control