fdlzp commented on issue #2362: {dataSource-1} inited takes a long time when
use ORA12c
URL:
https://github.com/apache/incubator-shardingsphere/issues/2362#issuecomment-494319868
>
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> ShardingSphere Will load all tables into metadata if you have configured
default datasource, we have filtered the tables which started with "$" and "/",
so I think oracle 12c have introduced new rule for these system table. we
prefer you can provide the system table image for oracle instance as we don't
have oracle 12c environment now.
Do you mean :
1、ShardingSphere have filtered the tables which started with "$" and "/" ，
either I have configured default datasource or multiple dataSources.
2、If I have configured default datasource ,sharding will loading all system
tables of my dayabase.
Though shardingSphere have filtered the tables which started with "$" and
"/" ,
the rest of tables( whose names don't contains "$") are still be loaded.
If there are a lt of tables whose names don't contains "$", the influence
may be great.
If the number of these tables are small ,the influence may be also small.
Actually,
my database have many tables ( whose names don't contains "$") .
That is just why we cost so much time.
Is my understanding correct ?
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