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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2021/03/09 11:29:51 UTC
[GitHub] [shardingsphere] terrymanu opened a new issue #9617: Load columns for all tables into metadata
terrymanu opened a new issue #9617:
URL: https://github.com/apache/shardingsphere/issues/9617
We load rules configured tables into metadata with columns and table name only for un-configured tables now.
By product design, it is necessary to load all columns for every table.
Load all columns are too slow if using raw JDBC interface. We should create a new SPI for quickly load columns via raw database way, such as load metadata via `information_schema` for MySQL.
The tasks are: #9615
- [ ] Create SPI for load metadata with native database dialect
- [ ] Load all columns for default JDBC loader
- [ ] Add MySQL dialect
- [ ] Add PostgreSQL dialect
- [ ] Add SQLServer dialect
- [ ] Add Oracle dialect
Some issues are related with imperfect metadata, there are: #
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[GitHub] [shardingsphere] totalo commented on issue #9617: Load columns for all tables into metadata
Posted by GitBox <gi...@apache.org>.
totalo commented on issue #9617:
URL: https://github.com/apache/shardingsphere/issues/9617#issuecomment-800192509
Hi, I'd like to try SQLServer dialect.
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[GitHub] [shardingsphere] terrymanu closed issue #9617: Load columns for all tables into metadata
Posted by GitBox <gi...@apache.org>.
terrymanu closed issue #9617:
URL: https://github.com/apache/shardingsphere/issues/9617
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[GitHub] [shardingsphere] sandynz commented on issue #9617: Load columns for all tables into metadata
Posted by GitBox <gi...@apache.org>.
sandynz commented on issue #9617:
URL: https://github.com/apache/shardingsphere/issues/9617#issuecomment-797383146
Hi, I'd like to try PostgreSQL dialect.
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[GitHub] [shardingsphere] wordKuaiLei commented on issue #9617: Load columns for all tables into metadata
Posted by GitBox <gi...@apache.org>.
wordKuaiLei commented on issue #9617:
URL: https://github.com/apache/shardingsphere/issues/9617#issuecomment-797563972
Hi, I'd like to try index metadata loading for MySQL dialect.
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[GitHub] [shardingsphere] neil4dong commented on issue #9617: Load columns for all tables into metadata
Posted by GitBox <gi...@apache.org>.
neil4dong commented on issue #9617:
URL: https://github.com/apache/shardingsphere/issues/9617#issuecomment-799059251
Is it possible to load metadata concurrently? when the amount of table is huge ex. 1000+ tables, loading meatedata
be come really slow. @terrymanu
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[GitHub] [shardingsphere] zhujunxxxxx commented on issue #9617: Load columns for all tables into metadata
Posted by GitBox <gi...@apache.org>.
zhujunxxxxx commented on issue #9617:
URL: https://github.com/apache/shardingsphere/issues/9617#issuecomment-799899612
Hi, I'd like to try H2 dialect.
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[GitHub] [shardingsphere] Liangda-w commented on issue #9617: Load columns for all tables into metadata
Posted by GitBox <gi...@apache.org>.
Liangda-w commented on issue #9617:
URL: https://github.com/apache/shardingsphere/issues/9617#issuecomment-803211938
Hi, I would like to try add Oracle dialect:)
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[GitHub] [shardingsphere] zhujunxxxxx commented on issue #9617: Load columns for all tables into metadata
Posted by GitBox <gi...@apache.org>.
zhujunxxxxx commented on issue #9617:
URL: https://github.com/apache/shardingsphere/issues/9617#issuecomment-799900587
I just finished optimizing this metadata load and you raised an ISSUE
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[GitHub] [shardingsphere] terrymanu commented on issue #9617: Load columns for all tables into metadata
Posted by GitBox <gi...@apache.org>.
terrymanu commented on issue #9617:
URL: https://github.com/apache/shardingsphere/issues/9617#issuecomment-799079372
> Is it possible to load metadata concurrently? when the amount of table is huge ex. 1000+ tables, loading meatedata
> be come really slow. @terrymanu
It has already load meta data concurrently
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[GitHub] [shardingsphere] terrymanu commented on issue #9617: Load columns for all tables into metadata
Posted by GitBox <gi...@apache.org>.
terrymanu commented on issue #9617:
URL: https://github.com/apache/shardingsphere/issues/9617#issuecomment-800808149
Cool，I just assign to you
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