"An error occurred while retrieving the data" for query entity on view

Hey everyone.

First, here is some background:

I'm trying to use the queryEntity() function on a CDT (called allTimesheetsView) but I get this error: "Expression evaluation error at function a!queryEntity: An error occurred while retrieving the data." allTimesheetsView (see below for XSD) was mapped to a database view of the same name.

My queryEntity() function looks like this: 

a!queryEntity(
  entity: cons!FLEXI_TIME_ALLTIMESHEETSVIEWENTITY,
  query: a!query(
    filter: a!queryFilter(
      field: "employeeId",
      operator: "=",
      value: ri!employeeId
    ),
    pagingInfo: a!pagingInfo(
      startIndex: 1,
      batchSize: - 1
    )
  )
)

allTimesheetsView XSD looks like this: 

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:tns="urn:com:appian:types" targetNamespace="urn:com:appian:types">
  <xsd:complexType name="Flexi_Time_allTimesheetsView">
    <xsd:annotation>
      <xsd:appinfo source="appian.jpa">@Table(name="Flexi_Time_allTimesheetsView")</xsd:appinfo>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="timesheetId" nillable="true" type="xsd:int">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="timesheetId", nullable=false, columnDefinition="INT")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="employeeId" nillable="true" type="xsd:int">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="employeeId", nullable=false, columnDefinition="INT")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="startDate" nillable="true" type="xsd:date">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="startDate", nullable=false, columnDefinition="DATE")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="endDate" nillable="true" type="xsd:date">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="endDate", nullable=false, columnDefinition="DATE")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="workweekId" nillable="true" type="xsd:int">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="workweekId", nullable=false, columnDefinition="INT")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="weekNumber" nillable="true" type="xsd:int">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="weekNumber", nullable=false, columnDefinition="INT")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="workdayId" nillable="true" type="xsd:int">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Id @Column(name="workdayId", nullable=false, columnDefinition="INT")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="date" nillable="true" type="xsd:date">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="date", nullable=false, columnDefinition="DATE")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="day" nillable="true" type="xsd:string">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="day", nullable=false, columnDefinition="VARCHAR(255)")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="startTime" nillable="true" type="xsd:string">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="startTime", nullable=false, columnDefinition="VARCHAR(20)")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="finishTime" nillable="true" type="xsd:string">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="finishTime", nullable=false, columnDefinition="VARCHAR(20)")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="total" nillable="true" type="xsd:string">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="total", nullable=false, columnDefinition="VARCHAR(20)")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="lunch" nillable="true" type="xsd:string">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="lunch", nullable=false, columnDefinition="VARCHAR(20)")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="credits" nillable="true" type="xsd:string">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="credits", nullable=false, columnDefinition="VARCHAR(20)")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="paidLeave" nillable="true" type="xsd:string">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="paidLeave", nullable=false, columnDefinition="VARCHAR(255)")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
      <xsd:element name="netHours" nillable="true" type="xsd:string">
        <xsd:annotation>
          <xsd:appinfo source="appian.jpa">@Column(name="netHours", nullable=false, columnDefinition="VARCHAR(20)")</xsd:appinfo>
        </xsd:annotation>
      </xsd:element>
    </xsd:sequence>
  </xsd:complexType>
</xsd:schema>

Any ideas on what the problem could be? The data types for the cdt and database view match and I've tried recreating my cdt.