Minor: Update string tests for strpos (#12739)

Author: alamb

datafusion/sqllogictest/test_files/string/large_string.slt

@@ -72,23 +72,6 @@ false false
 false true
 NULL NULL
 
-# TODO: move it back to `string_query.slt.part` after fixing the issue
-# see detail: https://github.com/apache/datafusion/issues/12670
-query IIIIII
-SELECT
-  STRPOS(ascii_1, 'e'),
-  STRPOS(ascii_1, 'ang'),
-  STRPOS(ascii_1, NULL),
-  STRPOS(unicode_1, 'и'),
-  STRPOS(unicode_1, 'ион'),
-  STRPOS(unicode_1, NULL)
-FROM test_basic_operator;
-----
-5 0 NULL 0 0 NULL
-7 3 NULL 0 0 NULL
-6 0 NULL 18 18 NULL
-NULL NULL NULL NULL NULL NULL
-
 #
 # common test for string-like functions and operators
 #

datafusion/sqllogictest/test_files/string/string.slt

@@ -63,23 +63,6 @@ Xiangpeng datafusion数据融合 false true false true
 Raphael datafusionДатаФусион false false false false
 NULL NULL NULL NULL NULL NULL
 
-# TODO: move it back to `string_query.slt.part` after fixing the issue
-# see detail: https://github.com/apache/datafusion/issues/12670
-query IIIIII
-SELECT
-  STRPOS(ascii_1, 'e'),
-  STRPOS(ascii_1, 'ang'),
-  STRPOS(ascii_1, NULL),
-  STRPOS(unicode_1, 'и'),
-  STRPOS(unicode_1, 'ион'),
-  STRPOS(unicode_1, NULL)
-FROM test_basic_operator;
-----
-5 0 NULL 0 0 NULL
-7 3 NULL 0 0 NULL
-6 0 NULL 18 18 NULL
-NULL NULL NULL NULL NULL NULL
-
 #
 # common test for string-like functions and operators
 #

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

@@ -951,22 +951,20 @@ NULL NULL
 # Test STRPOS
 # --------------------------------------
 
-# TODO: DictionaryString does not support STRPOS. Enable this after fixing the issue
-# see issue: https://github.com/apache/datafusion/issues/12670
-#query IIIIII
-#SELECT
-#  STRPOS(ascii_1, 'e'),
-#  STRPOS(ascii_1, 'ang'),
-#  STRPOS(ascii_1, NULL),
-#  STRPOS(unicode_1, 'и'),
-#  STRPOS(unicode_1, 'ион'),
-#  STRPOS(unicode_1, NULL)
-#FROM test_basic_operator;
-#----
-#5 0 NULL 0 0 NULL
-#7 3 NULL 0 0 NULL
-#6 0 NULL 18 18 NULL
-#NULL NULL NULL NULL NULL NULL
+query IIIIII
+SELECT
+  STRPOS(ascii_1, 'e'),
+  STRPOS(ascii_1, 'ang'),
+  STRPOS(ascii_1, NULL),
+  STRPOS(unicode_1, 'и'),
+  STRPOS(unicode_1, 'ион'),
+  STRPOS(unicode_1, NULL)
+FROM test_basic_operator;
+----
+5 0 NULL 0 0 NULL
+7 3 NULL 0 0 NULL
+6 0 NULL 18 18 NULL
+NULL NULL NULL NULL NULL NULL
 
 # --------------------------------------
 # Test SUBSTR_INDEX

datafusion/sqllogictest/test_files/string/string_view.slt

@@ -50,23 +50,6 @@ false false
 false true
 NULL NULL
 
-# TODO: move it back to `string_query.slt.part` after fixing the issue
-# see detail: https://github.com/apache/datafusion/issues/12670
-query IIIIII
-SELECT
-  STRPOS(ascii_1, 'e'),
-  STRPOS(ascii_1, 'ang'),
-  STRPOS(ascii_1, NULL),
-  STRPOS(unicode_1, 'и'),
-  STRPOS(unicode_1, 'ион'),
-  STRPOS(unicode_1, NULL)
-FROM test_basic_operator;
-----
-5 0 NULL 0 0 NULL
-7 3 NULL 0 0 NULL
-6 0 NULL 18 18 NULL
-NULL NULL NULL NULL NULL NULL
-
 #
 # common test for string-like functions and operators
 #