feat: rename match to bloom_filter

Author: tobyhede

src/bloom_filter/functions.sql

@@ -0,0 +1,28 @@
+-- REQUIRE: src/schema.sql
+
+
+-- extracts match index from an emcrypted column
+
+CREATE FUNCTION eql_v2.bloom_filter(val jsonb)
+  RETURNS eql_v2.bloom_filter_index
+  IMMUTABLE STRICT PARALLEL SAFE
+AS $$
+	BEGIN
+    IF val ? 'bf' THEN
+      RETURN ARRAY(SELECT jsonb_array_elements(val->'bf'))::eql_v2.bloom_filter_index;
+    END IF;
+    RAISE 'Expected a match index (bf) value in json: %', val;
+  END;
+$$ LANGUAGE plpgsql;
+
+
+-- extracts unique index from an encrypted column
+
+CREATE FUNCTION eql_v2.bloom_filter(val eql_v2_encrypted)
+  RETURNS eql_v2.bloom_filter_index
+  IMMUTABLE STRICT PARALLEL SAFE
+AS $$
+  BEGIN
+    RETURN (SELECT eql_v2.bloom_filter_index(val.data));
+  END;
+$$ LANGUAGE plpgsql;

src/match/functions_test.sql renamed to src/bloom_filter/functions_test.sql

@@ -4,11 +4,11 @@ DO $$
   BEGIN
     PERFORM assert_result(
         'Extract match index term from encrypted',
-        'SELECT eql_v2.match(''{"m": []}''::jsonb)');
+        'SELECT eql_v2.bloom_filter(''{"m": []}''::jsonb)');
 
     PERFORM assert_exception(
         'Missing match index term in encrypted raises exception',
-        'SELECT eql_v2.match(''{}''::jsonb)');
+        'SELECT eql_v2.bloom_filter(''{}''::jsonb)');
 
   END;
 $$ LANGUAGE plpgsql;

src/bloom_filter/types.sql

@@ -0,0 +1,4 @@
+-- REQUIRE: src/schema.sql
+
+CREATE DOMAIN eql_v2.bloom_filter_index AS smallint[];
+

src/match/functions.sql

@@ -9,14 +9,14 @@
 --
 --      eql_v2_encrypted ~~ eql_v2_encrypted
 --      eql_v2_encrypted ~~ jsonb
---      eql_v2_encrypted ~~ eql_v2.match_index
+--      eql_v2_encrypted ~~ eql_v2.bloom_filter_index
 --
 
 
 
 CREATE FUNCTION eql_v2.like(a eql_v2_encrypted, b eql_v2_encrypted)
 RETURNS boolean AS $$
-  SELECT eql_v2.match(a) @> eql_v2.match(b);
+  SELECT eql_v2.bloom_filter(a) @> eql_v2.bloom_filter(b);
 $$ LANGUAGE SQL;
 
 
@@ -26,7 +26,7 @@ $$ LANGUAGE SQL;
 --
 CREATE FUNCTION eql_v2.ilike(a eql_v2_encrypted, b eql_v2_encrypted)
 RETURNS boolean AS $$
-  SELECT eql_v2.match(a) @> eql_v2.match(b);
+  SELECT eql_v2.bloom_filter(a) @> eql_v2.bloom_filter(b);
 $$ LANGUAGE SQL;
 
 

src/match/types.sql

@@ -76,15 +76,15 @@ $$ LANGUAGE plpgsql;
 
 
 --
--- Match - eql_v2.match(eql_v2_encrypted, eql_v2_encrypted)
+-- Match - eql_v2.bloom_filter(eql_v2_encrypted, eql_v2_encrypted)
 --
 DO $$
 DECLARE
     e eql_v2_encrypted;
   BEGIN
 
     for i in 1..3 loop
-      e := create_encrypted_json(i, 'm');
+      e := create_encrypted_json(i, 'bf');
 
       PERFORM assert_result(
         format('eql_v2.like(eql_v2_encrypted, eql_v2_encrypted)', i),
@@ -93,7 +93,7 @@ DECLARE
     end loop;
 
     -- Partial match
-    e := create_encrypted_json('m')::jsonb || '{"m": [10, 11]}';
+    e := create_encrypted_json('bf')::jsonb || '{"bf": [10, 11]}';
 
     PERFORM assert_result(
         'eql_v2.like(eql_v2_encrypted, eql_v2_encrypted)',

src/operators/~~.sql

@@ -319,7 +319,7 @@ AS $$
           },
           "u": "unique.%s",
           "b": "blake3.%s",
-          "m": %s
+          "bf": %s
         }',
         random_key,
         random_val,