fix: parse interval as word operator (#615)

tconbeer · Jul 25, 2024 · ee93c8d · ee93c8d
1 parent b39751c
commit ee93c8d
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -7,6 +7,7 @@ All notable changes to this project will be documented in this file.
 ### Formatting Changes and Bug Fixes
 
 - DuckDB's `union [all] by name` is now supported ([#611](https://github.com/tconbeer/sqlfmt/issues/611) - thank you [@aersam](https://github.com/aersam)!).
+- `interval` is now parsed as a word operator. Parenthesized expressions like `interval (10) days` will maintain the space after `interval`.
 
 ## [0.21.4] - 2024-07-09
 

diff --git a/src/sqlfmt/rules/__init__.py b/src/sqlfmt/rules/__init__.py
@@ -49,6 +49,7 @@
             r"filter",
             r"grouping sets",
             r"(not\s+)?in",
+            r"interval",
             r"is(\s+not)?(\s+distinct\s+from)?",
             r"isnull",
             r"(not\s+)?i?like(\s+(any|all))?",

diff --git a/tests/unit_tests/test_rule.py b/tests/unit_tests/test_rule.py
@@ -144,6 +144,7 @@ def get_rule(ruleset: List[Rule], rule_name: str) -> Rule:
         (MAIN, "word_operator", "in"),
         (MAIN, "word_operator", "not in"),
         (MAIN, "word_operator", "not\n\nin"),
+        (MAIN, "word_operator", "interval"),
         (MAIN, "word_operator", "like"),
         (MAIN, "word_operator", "not like"),
         (MAIN, "word_operator", "ilike"),