diff --git a/crates/lib-dialects/test/fixtures/dialects/postgres/pgtrgm.sql b/crates/lib-dialects/test/fixtures/dialects/postgres/pgtrgm.sql
new file mode 100644
index 000000000..7ec9f5c7b
--- /dev/null
+++ b/crates/lib-dialects/test/fixtures/dialects/postgres/pgtrgm.sql
@@ -0,0 +1,10 @@
+SELECT text % text;
+SELECT text <% text;
+SELECT text %> text;
+SELECT text <<% text;
+SELECT text %>> text;
+SELECT text <-> text;
+SELECT text <<-> text;
+SELECT text <->> text;
+SELECT text <<<-> text;
+SELECT text <->>> text;
diff --git a/crates/lib-dialects/test/fixtures/dialects/postgres/pgtrgm.yml b/crates/lib-dialects/test/fixtures/dialects/postgres/pgtrgm.yml
new file mode 100644
index 000000000..0e032a56d
--- /dev/null
+++ b/crates/lib-dialects/test/fixtures/dialects/postgres/pgtrgm.yml
@@ -0,0 +1,121 @@
+file:
+- statement:
+  - select_statement:
+    - select_clause:
+      - keyword: SELECT
+      - select_clause_element:
+        - expression:
+          - column_reference:
+            - naked_identifier: text
+          - binary_operator: '%'
+          - column_reference:
+            - naked_identifier: text
+- statement_terminator: ;
+- statement:
+  - select_statement:
+    - select_clause:
+      - keyword: SELECT
+      - select_clause_element:
+        - expression:
+          - column_reference:
+            - naked_identifier: text
+          - comparison_operator: <%
+          - column_reference:
+            - naked_identifier: text
+- statement_terminator: ;
+- statement:
+  - select_statement:
+    - select_clause:
+      - keyword: SELECT
+      - select_clause_element:
+        - expression:
+          - column_reference:
+            - naked_identifier: text
+          - comparison_operator: '%>'
+          - column_reference:
+            - naked_identifier: text
+- statement_terminator: ;
+- statement:
+  - select_statement:
+    - select_clause:
+      - keyword: SELECT
+      - select_clause_element:
+        - expression:
+          - column_reference:
+            - naked_identifier: text
+          - comparison_operator: <<%
+          - column_reference:
+            - naked_identifier: text
+- statement_terminator: ;
+- statement:
+  - select_statement:
+    - select_clause:
+      - keyword: SELECT
+      - select_clause_element:
+        - expression:
+          - column_reference:
+            - naked_identifier: text
+          - comparison_operator: '%>>'
+          - column_reference:
+            - naked_identifier: text
+- statement_terminator: ;
+- statement:
+  - select_statement:
+    - select_clause:
+      - keyword: SELECT
+      - select_clause_element:
+        - expression:
+          - column_reference:
+            - naked_identifier: text
+          - comparison_operator: <->
+          - column_reference:
+            - naked_identifier: text
+- statement_terminator: ;
+- statement:
+  - select_statement:
+    - select_clause:
+      - keyword: SELECT
+      - select_clause_element:
+        - expression:
+          - column_reference:
+            - naked_identifier: text
+          - comparison_operator: <<->
+          - column_reference:
+            - naked_identifier: text
+- statement_terminator: ;
+- statement:
+  - select_statement:
+    - select_clause:
+      - keyword: SELECT
+      - select_clause_element:
+        - expression:
+          - column_reference:
+            - naked_identifier: text
+          - comparison_operator: <->>
+          - column_reference:
+            - naked_identifier: text
+- statement_terminator: ;
+- statement:
+  - select_statement:
+    - select_clause:
+      - keyword: SELECT
+      - select_clause_element:
+        - expression:
+          - column_reference:
+            - naked_identifier: text
+          - comparison_operator: <<<->
+          - column_reference:
+            - naked_identifier: text
+- statement_terminator: ;
+- statement:
+  - select_statement:
+    - select_clause:
+      - keyword: SELECT
+      - select_clause_element:
+        - expression:
+          - column_reference:
+            - naked_identifier: text
+          - comparison_operator: <->>>
+          - column_reference:
+            - naked_identifier: text
+- statement_terminator: ;