Hello Everybody, while mapping a CDT to a pre-existing MS SQL database I'm r

What is your XSD mapping for this field? When you said that "the columnDefinition property of the @Column annotation doesn't appear to help", did you mean that you tried using @Column(columnDefinition = “char”)?

My mapping is straight forward and included below - but yes, when I saw column definition I mean exactly that.

<xsd:element name="PrefLanguage" nillable="true" type="xsd:string">
<xsd:annotation>
<xsd:appinfo source="appian.jpa">@Column(name="PreferredLanguage", columnDefinition="CHAR(4)")</xsd:appinfo>
</xsd:annotation>
</xsd:element>

For anyone searching in the future: My problem was ended up being completely unrelated to the mapping and was entirely due to the browser. After removing the offending column entirely so I could resolve this problem later I was still unable to verify the datastore because of this Char column. This continued after doing a full refresh of the browser, closing all extra tabs and redownloading the XSD definition to ensure that I had, in fact, removed the column. The solution: Log out from Appian, log back in and then verify again. I was able to reproduce the problem, and the solution using both IE11 and Chrome.