Aleksei Zinovev

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Results 63 issues of Aleksei Zinovev

Improve performance for reading from database

There are a few ways to increase the speed of SQL queries and data retrieval - [ ] batches/fetching - [ ] manipulate by whole row instead of reading of...

research
performance
databases

Create extension functions for java.sql main objects to extract data `toDF()`

- [ ] Connection - [ ] ResultSet - [ ] something else @Jolanrensen suggested thinking about creation extension functions for some of the main java.sql.* classes

research
databases

Change the place and resulting object for the methods of `readSql<-->Schema`

Motivation: All these objects are placed on the DataFrame, but return not a DataFrame, but schema, also we are limited with this schema from DataFrame, but it could not keep,...

enhancement
databases