Fixed errors when using LIKE queries on non-string fields

MarkMpn.Sql4Cds.Engine/ExecutionPlan/BaseDataNode.cs

@@ -626,6 +626,11 @@ private bool TranslateFetchXMLCriteriaWithVirtualAttributes(EntityMetadata meta,
                 }
             }
 
+            // Can't fold LIKE queries for non-string fields - the server will try to convert the value to the type of
+            // the attribute (e.g. integer) and throw an exception. 
+            if (attribute != null && attributeSuffix == null && (op == @operator.like || op == @operator.notlike) && !(attribute.AttributeType == AttributeTypeCode.String || attribute.AttributeType == AttributeTypeCode.Memo))
+                return false;
+
             var value = literals == null ? null : literals.Length == 1 ? literals[0] is Literal l ? l.Value : literals[0] is VariableReference v ? v.Name : null : null;
             var values = literals == null ? null : literals.Select(lit => new conditionValue { Value = lit is Literal lit1 ? lit1.Value : lit is VariableReference var1 ? var1.Name : null }).ToArray();
             var entityAliases = new[] { entityAlias };
@@ -635,7 +640,7 @@ private bool TranslateFetchXMLCriteriaWithVirtualAttributes(EntityMetadata meta,
             var usesItems = values != null && values.Length > 1 || op == @operator.@in || op == @operator.notin || op == @operator.containvalues || op == @operator.notcontainvalues;
 
             if (attribute is DateTimeAttributeMetadata && literals != null &&
-                (op == @operator.eq || op == @operator.ne || op == @operator.neq || op == @operator.gt || op == @operator.ge || op == @operator.lt || op == @operator.le))
+                (op == @operator.eq || op == @operator.ne || op == @operator.neq || op == @operator.gt || op == @operator.ge || op == @operator.lt || op == @operator.le || op == @operator.@in || op == @operator.notin))
             {
                 for (var i = 0; i < literals.Length; i++)
                 {

MarkMpn.Sql4Cds.Engine/MarkMpn.Sql4Cds.Engine.nuspec

@@ -16,6 +16,7 @@ Reduced attributes retrieved to process COUNT(*) queries
 Fixed GROUP BY and aggregates on virtual attributes
 Fixed retrieving file attributes
 Fixed GROUP BY and ORDER BY on multi-select picklist fields
+Fixed errors when using LIKE queries on non-string fields
     </releaseNotes>
     <copyright>Copyright © 2020 Mark Carrington</copyright>
     <language>en-GB</language>

MarkMpn.Sql4Cds/MarkMpn.SQL4CDS.nuspec

@@ -30,6 +30,7 @@ Fixed GROUP BY and aggregates on virtual attributes
 Fixed retrieving file attributes
 Fixed using quoted identifiers
 Fixed GROUP BY and ORDER BY on multi-select picklist fields
+Fixed errors when using LIKE queries on non-string fields
     </releaseNotes>
     <copyright>Copyright © 2019 Mark Carrington</copyright>
     <language>en-GB</language>