@@ -42,6 +42,9 @@ message MatchRequest {
 // The list of restricts.
 repeated Namespace restricts = 4;
 
+//The list of numeric restricts.
+repeated NumericNamespace numeric_restricts = 11;
+
 // Crowding is a constraint on a neigr list produced by nearest neigr
 // search requiring that no more than some value k' of the k neigrs
 // returned have the same value of crowding_attribute.
@@ -88,6 +91,9 @@ message Embedding {
 // The list of restricts.
 repeated Namespace restricts = 3;
 
+// The list of numeric restricts.
+repeated NumericNamespace numeric_restricts = 5;
+
 // The attribute value used for crowding. The maximum number of neigrs
 // to return per crowding attribute value
 // (per_crowding_attribute_num_neigrs) is configured per-query.
@@ -175,6 +181,7 @@ message BatchMatchResponse {
 
 // Namespace specifies the rules for determining the datapoints that are
 // eligible for each matching query, overall query is an AND across namespaces.
+// This uses categorical tokens.
 message Namespace {
 // The string name of the namespace that this proto is specifying,
 // such as "color", "shape", "geo", or "tags".
@@ -192,4 +199,53 @@ message Namespace {
 // query will match datapoints that are red or blue, but if those points are
 // also purple, then they will be excluded even if they are red/blue.
 repeated string deny_tokens = 3;
-}
+}
+
+// NumericNamespace specifies the rules for determining the datapoints that are
+// eligible for each matching query, overall query is an AND across namespaces.
+// This uses numeric comparisons.
+message NumericNamespace {
+
+// The string name of the namespace that this proto is specifying,
+// such as "size" or "cost".
+string name = 1;
+
+// The type of Value must be consistent for all datapoints with a given
+// namespace name. This is verified at runtime.
+oneof Value {
+// Represents 64 bit integer.
+int64 value_int = 2;
+// Represents 32 bit float.
+float value_float = 3;
+// Represents 64 bit float.
+double value_double = 4;
+}
+
+// Which comparison operator to use. Should be specified for queries only;
+// specifying this for a datapoint is an error.
+//
+// Datapoints for which Operator is true relative to the query's Value
+// field will be allowlisted.
+enum Operator {
+// Default value of the enum.
+OPERATOR_UNSPECIFIED = 0;
+
+// Datapoints are eligible iff their value is < the query's.
+LESS = 1;
+
+// Datapoints are eligible iff their value is <= the query's.
+LESS_EQUAL = 2;
+
+// Datapoints are eligible iff their value is == the query's.
+EQUAL = 3;
+
+// Datapoints are eligible iff their value is >= the query's.
+GREATER_EQUAL = 4;
+
+// Datapoints are eligible iff their value is > the query's.
+GREATER = 5;
+}
+
+// Which comparison operator to use.
+Operator op = 5;
+}