[jira] Updated: (AVRO-204) change the way symbolic references are tracked

["Scott Banachowski (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AVRO-204?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Scott Banachowski updated AVRO-204:
-----------------------------------

    Status: Patch Available  (was: Open)

> change the way symbolic references are tracked
> ----------------------------------------------
>
>                 Key: AVRO-204
>                 URL: https://issues.apache.org/jira/browse/AVRO-204
>             Project: Avro
>          Issue Type: Improvement
>          Components: c++
>            Reporter: Scott Banachowski
>         Attachments: AVRO-204.patch
>
>
> In a schema, a previously defined schema may be referenced by name.  The way the implementation tracked this was a look-aside mapping of name to instance.  If a symbol node was encountered during parsing it was referenced via the map.
> Instead of using a look-aside map, now a pointer to the referenced node is stored in the symbolic schema node, so while parsing it may be de-referenced without a lookup.  The look-aside map is only when compiling the schema, so that symbols are resolved at compile time.
> This improves performance, reduces storage space, and simplifies some some upcoming changes (resolving schema differences).

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