diff --git a/src/edu/stanford/nlp/sempre/tables/TableKnowledgeGraph.java b/src/edu/stanford/nlp/sempre/tables/TableKnowledgeGraph.java
index 8609e7a..143aeca 100644
--- a/src/edu/stanford/nlp/sempre/tables/TableKnowledgeGraph.java
+++ b/src/edu/stanford/nlp/sempre/tables/TableKnowledgeGraph.java
@@ -608,13 +608,19 @@ public class TableKnowledgeGraph extends KnowledgeGraph implements FuzzyMatchabl
     return null;
   }
 
+  public Value getNameValueWithOriginalString(NameValue value) {
+    if (value.description == null)
+      value = new NameValue(value.id, getOriginalString(value.id));
+    return value;
+  }
+
   public ListValue getListValueWithOriginalStrings(ListValue answers) {
     List<Value> values = new ArrayList<>();
     for (Value value : answers.values) {
       if (value instanceof NameValue) {
         NameValue name = (NameValue) value;
         if (name.description == null)
-          value = new NameValue(name.id, getOriginalString(((NameValue) value).id));
+          value = new NameValue(name.id, getOriginalString(name.id));
       }
       values.add(value);
     }
diff --git a/src/edu/stanford/nlp/sempre/tables/TableValueEvaluator.java b/src/edu/stanford/nlp/sempre/tables/TableValueEvaluator.java
index f1d2a84..87e44a5 100644
--- a/src/edu/stanford/nlp/sempre/tables/TableValueEvaluator.java
+++ b/src/edu/stanford/nlp/sempre/tables/TableValueEvaluator.java
@@ -23,6 +23,8 @@ public class TableValueEvaluator implements ValueEvaluator {
     public boolean allowNormalizedStringMatch = true;
     @Option(gloss = "When comparing number values, only consider the value and not the unit")
     public boolean ignoreNumberValueUnits = true;
+    @Option(gloss = "Strict date evaluation (year, month, and date all have to match)")
+    public boolean strictDateEvaluation = false;
   }
   public static Options opts = new Options();
 
@@ -113,11 +115,15 @@ public class TableValueEvaluator implements ValueEvaluator {
   }
 
   protected boolean compareDateValues(DateValue target, DateValue pred) {
-    // If a field in target is not blank (-1), pred must match target on that field
-    if (target.year != -1 && target.year != pred.year) return false;
-    if (target.month != -1 && target.month != pred.month) return false;
-    if (target.day != -1 && target.day != pred.day) return false;
-    return true;
+    if (opts.strictDateEvaluation) {
+      return target.equals(pred);
+    } else {
+      // If a field in target is not blank (-1), pred must match target on that field
+      if (target.year != -1 && target.year != pred.year) return false;
+      if (target.month != -1 && target.month != pred.month) return false;
+      if (target.day != -1 && target.day != pred.day) return false;
+      return true;
+    }
   }
 
 }
diff --git a/src/edu/stanford/nlp/sempre/tables/lambdadcs/LambdaDCSExecutor.java b/src/edu/stanford/nlp/sempre/tables/lambdadcs/LambdaDCSExecutor.java
index ccaa167..bb1aace 100644
--- a/src/edu/stanford/nlp/sempre/tables/lambdadcs/LambdaDCSExecutor.java
+++ b/src/edu/stanford/nlp/sempre/tables/lambdadcs/LambdaDCSExecutor.java
@@ -205,6 +205,8 @@ class LambdaDCSCoreLogic {
         // Rule out binaries
         if (CanonicalNames.isBinary(value) && LambdaDCSExecutor.opts.executeBinary)
           throw new LambdaDCSException(Type.notUnary, "[Unary] Binary value %s", formula);
+        if (value instanceof NameValue && graph instanceof TableKnowledgeGraph)
+          value = ((TableKnowledgeGraph) graph).getNameValueWithOriginalString((NameValue) value);
         // Other cases
         return typeHint.applyBound(new ExplicitUnaryDenotation(value));
       }
diff --git a/src/edu/stanford/nlp/sempre/tables/lambdadcs/LambdaDCSExecutorTest.java b/src/edu/stanford/nlp/sempre/tables/lambdadcs/LambdaDCSExecutorTest.java
index c2159e4..d603f9e 100644
--- a/src/edu/stanford/nlp/sempre/tables/lambdadcs/LambdaDCSExecutorTest.java
+++ b/src/edu/stanford/nlp/sempre/tables/lambdadcs/LambdaDCSExecutorTest.java
@@ -4,6 +4,7 @@ import java.util.*;
 
 import fig.basic.*;
 import edu.stanford.nlp.sempre.*;
+import edu.stanford.nlp.sempre.corenlp.CoreNLPAnalyzer;
 import edu.stanford.nlp.sempre.tables.TableKnowledgeGraph;
 
 import org.testng.annotations.Test;
@@ -253,8 +254,9 @@ public class LambdaDCSExecutorTest {
         "(and (!= (and (!= fb:cell.away) fb:cell.home)) ((reverse fb:row.row.opponent) (fb:row.row.index (- (number 1) (number 1)))))",
         graph, matches("(name fb:cell.derby_county)"));
   }
-  
+
   @Test(groups = "lambdaCSV3") public void lambdaOnGraphCSV3Test() {
+    LanguageAnalyzer.setSingleton(new CoreNLPAnalyzer());
     KnowledgeGraph graph = getKnowledgeGraph("csv3");
     runFormula(executor,
         "(count (fb:type.object.type fb:type.row))",
@@ -262,5 +264,12 @@ public class LambdaDCSExecutorTest {
     runFormula(executor,
         "(count (fb:row.row.opened (fb:cell.cell.date (< (date 1926 -1 -1)))))",
         graph, matches("(number 6)"));
+    runFormula(executor,
+        "(sum (- (count ((reverse fb:row.row.index) (fb:type.object.type fb:type.row))) " +
+            "((reverse fb:row.row.index) (fb:row.row.latitude ((reverse fb:row.row.longitude) (fb:type.object.type fb:type.row))))))",
+        graph, matches("(number 6)"));
+    runFormula(executor,
+        "(- (number 1926) (argmax (number 1) (number 1) ((reverse fb:cell.cell.number) (or (or (or fb:cell.1920 fb:cell.1925) fb:cell.1926) fb:cell.1946)) (reverse (lambda x (sum ((reverse fb:cell.cell.number) (fb:cell.cell.number (var x))))))))",
+        graph, matches("(number 6)"));
   }
 }
diff --git a/tables/dump-parsers/convert-to-postfix.py b/tables/dump-parsers/convert-to-postfix.py
index e64514b..3030e8e 100755
--- a/tables/dump-parsers/convert-to-postfix.py
+++ b/tables/dump-parsers/convert-to-postfix.py
@@ -5,7 +5,7 @@
 If the file is tab-separated, only process the first column.
 """
 
-import sys, os, shutil, re, argparse, json
+import sys, os, shutil, re, argparse, json, gzip
 from codecs import open
 from itertools import izip
 from collections import defaultdict