Solr substring search yields all indexed results - solr

Question

To do a substring search, I have added a new fieldType - "Text" with NgramFilter.
It works fine perfectly but downside is this problem
Example
name = ['Apple','Samy','And','a']
When I do a search name:a, then all the above items gets pulled up. Even when search changes to "App". All the above items are pulled. How can I fix this issue?
<fieldType name="text" class="solr.TextField" positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.EdgeNGramFilterFactory" minGramSize="1" maxGramSize="100" />
</analyzer>
</fieldType>

Answer 1

As you can see in the analysis, both the indexed value and the query value gets parsed through the EdgeNGramFilter - meaning that it will match anything that is a substring of anything else. Add a simpler filter for querying the field, and you should be good to go.
The example from the Wiki should be usable by just copying and pasting it:
<fieldType name="text_general_edge_ngram" class="solr.TextField" positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.LowerCaseTokenizerFactory"/>
<filter class="solr.EdgeNGramFilterFactory" minGramSize="1" maxGramSize="15" side="front"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.LowerCaseTokenizerFactory"/>
</analyzer>
</fieldType>
My initial guess was that since you don't provide two alternative definitions, Solr will use the same chain for both. Your analysis output confirms that suspicion. Try adding a analyser with type="query" to have a specific chain for querying the field (you do not want EdgeNGram both places).