Test LENGTH, FARM_FINGERPRINT, ANSI aggregates

tests/sql/functions/README.md

@@ -15,19 +15,19 @@ generate your own version of this list by running `joinery parse
 - [x] LOWER(_)
 - [x] TO_HEX(_)
 - [x] SHA256(_)
-- [ ] LENGTH(_)
+- [x] LENGTH(_)
 - [x] CONCAT(*)
 - [x] TRIM(_)
 - [ ] ARRAY_TO_STRING(_,_)
-- [ ] SUM(_)
-- [ ] FARM_FINGERPRINT(_)
+- [x] SUM(_)
+- [x] FARM_FINGERPRINT(_)
 - [ ] ANY_VALUE(_)
 - [ ] ROW_NUMBER() OVER(..)
 - [ ] COUNTIF(_)
 - [x] UPPER(_)
 - [ ] ARRAY_AGG(_)
 - [ ] DATE_TRUNC(_,_) (special)
-- [ ] MIN(_)
+- [x] MIN(_)
 - [ ] FORMAT_DATETIME(_,_)
 - [ ] RAND()
 - [ ] RANK() OVER(..)
@@ -38,7 +38,7 @@ generate your own version of this list by running `joinery parse
 - [ ] CURRENT_DATETIME()
 - [ ] DATE_SUB(_,_)
 - [ ] EXP(_)
-- [ ] MAX(_)
+- [x] MAX(_)
 - [ ] GENERATE_UUID()
 - [ ] DATE(_)
 - [ ] LEAST(_,_)

tests/sql/functions/aggregate/ansi.sql

@@ -0,0 +1,27 @@
+-- ANSI standard aggregate functions: AVG, COUNT, MAX, MIN, SUM
+
+CREATE TEMP TABLE ints (i INT64);
+INSERT INTO ints VALUES (1), (2), (2), (3);
+
+CREATE OR REPLACE TABLE __result1 AS
+SELECT
+    -- Our Snowflake driver has trouble comparing FLOAT64s right now.
+    CAST(AVG(i) AS INT64) AS avg,
+    COUNT(i) AS count_all,
+    COUNT(DISTINCT i) AS count_distinct,
+    MAX(i) AS max,
+    MIN(i) AS min,
+    SUM(i) AS sum
+FROM ints;
+
+CREATE OR REPLACE TABLE __expected1 (
+    avg INT64,
+    count_all INT64,
+    count_distinct INT64,
+    max INT64,
+    min INT64,
+    sum INT64,
+);
+
+INSERT INTO __expected1 VALUES
+  (2.0, 4, 3, 3, 1, 8);

tests/sql/functions/simple/farm_fingerprint.sql

@@ -0,0 +1,13 @@
+-- pending: snowflake FARM_FINGERPRINT only exists on BigQuery
+-- pending: sqlite3 FARM_FINGERPRINT only exists on BigQuery
+CREATE OR REPLACE TABLE __result1 AS
+SELECT
+    FARM_FINGERPRINT('foo') AS str_farm,
+    FARM_FINGERPRINT(null) AS null_farm;
+
+CREATE OR REPLACE TABLE __expected1 (
+    str_farm INT64,
+    null_farm INT64,
+);
+INSERT INTO __expected1 VALUES
+  (6150913649986995171, NULL);

tests/sql/functions/simple/length.sql

@@ -0,0 +1,16 @@
+CREATE OR REPLACE TABLE __result1 AS
+SELECT
+    length('日本国') AS str_len,
+    -- Snowflake requires `to_binary(s, 'utf-8')`. CAST 
+    -- assumes the string is hex-encoded.
+    --
+    --length(CAST('日本国' AS BYTES)) AS bytes_len,
+    length(null) AS null_len;
+
+CREATE OR REPLACE TABLE __expected1 (
+    str_len INT64,
+    --bytes_len INT64,
+    null_len INT64,
+);
+INSERT INTO __expected1 VALUES
+  (3, /*9,*/ NULL);