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https://issues.apache.org/jira/browse/SOLR-469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12591300#action_12591300
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Grant Ingersoll commented on SOLR-469:
--------------------------------------
I was just thinking as an option. How does it limit? A single SQL
can join across tables. I will try to update the patch w/ my merges
when I get a breather. I have the case where I can send in something
like:
select col1 as field1, col2 as field2, ... from table1, ... where ...;
and it goes and runs that SQL against the specified connection.
Basically, any valid SQL select statement can be sent in.
Actually, I can send in multiple SQL statements as well, or just
specify the table, or the table and certain columns.
--------------------------
Grant Ingersoll
Lucene Helpful Hints:
http://wiki.apache.org/lucene-java/BasicsOfPerformance
http://wiki.apache.org/lucene-java/LuceneFAQ
> Data Import RequestHandler
> --------------------------
>
> Key: SOLR-469
> URL: https://issues.apache.org/jira/browse/SOLR-469
> Project: Solr
> Issue Type: New Feature
> Components: update
> Affects Versions: 1.3
> Reporter: Noble Paul
> Assignee: Grant Ingersoll
> Fix For: 1.3
>
> Attachments: SOLR-469.patch, SOLR-469.patch, SOLR-469.patch,
> SOLR-469.patch, SOLR-469.patch, SOLR-469.patch, SOLR-469.patch, SOLR-469.patch
>
>
> We need a RequestHandler Which can import data from a DB or other dataSources
> into the Solr index .Think of it as an advanced form of SqlUpload Plugin
> (SOLR-103).
> The way it works is as follows.
> * Provide a configuration file (xml) to the Handler which takes in the
> necessary SQL queries and mappings to a solr schema
> - It also takes in a properties file for the data source
> configuraution
> * Given the configuration it can also generate the solr schema.xml
> * It is registered as a RequestHandler which can take two commands
> do-full-import, do-delta-import
> - do-full-import - dumps all the data from the Database into the
> index (based on the SQL query in configuration)
> - do-delta-import - dumps all the data that has changed since last
> import. (We assume a modified-timestamp column in tables)
> * It provides a admin page
> - where we can schedule it to be run automatically at regular
> intervals
> - It shows the status of the Handler (idle, full-import,
> delta-import)
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