Test for string / numeric coercion

datafusion/sqllogictest/test_files/string/string_query.slt.part

@@ -19,6 +19,10 @@
 # with standard values, but different types in string columns
 # (String, StringView, etc.)
 
+# --------------------------------------
+# Show the input data
+# --------------------------------------
+
 # select
 query TTTT
 SELECT ascii_1, ascii_2, unicode_1, unicode_2 FROM test_basic_operator
@@ -35,6 +39,41 @@ _ \_ (empty) (empty)
 NULL % NULL NULL
 NULL R NULL 🔥
 
+# --------------------------------------
+# test type coercion (compare to int)
+# queries should not error
+# --------------------------------------
+
+query BB
+select ascii_1 = 1 as col1, ascii_1 = 1 as col2 from test_basic_operator;
+----
+false false
+false false
+false false
+false false
+false false
+false false
+false false
+false false
+false false
+NULL NULL
+NULL NULL
+
+query BB
+select ascii_1 <> 1 as col1, ascii_1 <> 1 as col2 from test_basic_operator;
+----
+true true
+true true
+true true
+true true
+true true
+true true
+true true
+true true
+true true
+NULL NULL
+NULL NULL
+
 # --------------------------------------
 # column comparison as filters
 # --------------------------------------