test(clickhouse): regen sql

Author: cpcloud

ibis/backends/clickhouse/tests/snapshots/test_functions/test_column_regexp_extract/out.sql

@@ -1,7 +1,7 @@
 SELECT
   CASE
-    WHEN notEmpty(extractGroups(CAST("t0"."string_col" AS String), CONCAT('(', '[\\d]+', ')'))[5])
-    THEN extractGroups(CAST("t0"."string_col" AS String), CONCAT('(', '[\\d]+', ')'))[5]
+    WHEN notEmpty(extractGroups(CAST("t0"."string_col" AS String), CONCAT('(', '[\\d]+', ')'))[4])
+    THEN extractGroups(CAST("t0"."string_col" AS String), CONCAT('(', '[\\d]+', ')'))[4]
     ELSE NULL
   END AS "RegexExtract(string_col, '[\\d]+', 3)"
 FROM "functional_alltypes" AS "t0"