From c2419ebe8190783bb3f4ad914d6ff912d5f73444 Mon Sep 17 00:00:00 2001
From: Luca Favatella <luca.favatella@erlang-solutions.com>
Date: Wed, 30 Nov 2016 16:09:35 +0000
Subject: [PATCH] Review field for full-text search in default schema

In 2013, [usage] of `text` field was deleted. In 2014, `text` stopped
to be [default] field and [comment] on aim of `text` field was
deleted. Hence only the definition of field `text` was left.

[usage]: https://github.com/basho/yokozuna/commit/5ed36bb7bd64f4e17387bcd84621a63f0aae4ef9#diff-a5640d83f118f6b45ab6c388a89507dcL258
[default]: https://github.com/basho/yokozuna/commit/7e106dc114c87f4569800911f3fb410a8ed92664#diff-a54ecf58f2bd4054b393a8c7b4cbc782L540
[comment]: https://github.com/basho/yokozuna/commit/5d813cc42215671240a0e0f43a208841dd65e05d#diff-a5640d83f118f6b45ab6c388a89507dcL26

This change reviews field `text` in the following way:
* Comment field definition, alongside commented sample intended usage;
* Rename field to `_text_` as apparent upstream [preference].

[preference]: https://github.com/apache/lucene-solr/commit/a4be57c1a11b7fc3e1988cb688fdfa949a3f5884

Note:
* Is is ok to use wildcard as source i.e. [`<copyField source="*"
  ...`](https://github.com/apache/lucene-solr/blob/releases/lucene-solr/6.3.0/solr/server/solr/configsets/data_driven_schema_configs/conf/managed-schema#L128).
---
 priv/default_schema.xml | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/priv/default_schema.xml b/priv/default_schema.xml
index 32058ca6..6565a534 100644
--- a/priv/default_schema.xml
+++ b/priv/default_schema.xml
@@ -22,7 +22,7 @@
    <!-- TODO: is this needed? -->
    <field name="_version_" type="long" indexed="true" stored="true"/>
 
-   <field name="text" type="text_general" indexed="true" stored="false" multiValued="true"/>
+   <!-- <field name="_text_" type="text_general" indexed="true" stored="false" multiValued="true"/> -->
 
    <dynamicField name="*_i"  type="int"    indexed="true"  stored="true"  multiValued="false"/>
    <dynamicField name="*_is" type="int"    indexed="true"  stored="true"  multiValued="true"/>
@@ -137,6 +137,10 @@
 
  <uniqueKey>_yz_id</uniqueKey>
 
+    <!-- Enable only if the client does not know what fields may be searched
+         because it's very expensive to index everything twice. -->
+    <!-- <copyField source="*" dest="_text_"/> -->
+
   <types>
     <!-- YZ String: Used for non-analyzed fields -->
     <fieldType name="_yz_str" class="solr.StrField" sortMissingLast="true" />