Import SQLite 3.8.7.4.

third_party/sqlite/src/test/collate1.test

 #
 # 2001 September 15
 #
 # The author disclaims copyright to this source code.  In place of
 # a legal notice, here is a blessing:
 #
 #    May you do good and not evil.
 #    May you find forgiveness for yourself and forgive others.
 #    May you share freely, never taking more than you give.
 #
@@ skipping 286 matching lines @@
   execsql {
     SELECT (c1||'') COLLATE numeric FROM collate1t1 ORDER BY 1;
   }
 } {{} 1 12 101}
 do_test collate1-4.5 {
   execsql {
     DROP TABLE collate1t1;
   }
 } {}
 
+# A problem reported on the mailing list:  A CREATE TABLE statement
+# is allowed to have two or more COLLATE clauses on the same column.
+# That probably ought to be an error, but we allow it for backwards
+# compatibility.  Just make sure it works and doesn't leak memory.
+#
+do_test collate1-5.1 {
+  execsql {
+    CREATE TABLE c5(
+      id INTEGER PRIMARY KEY,
+      a TEXT COLLATE binary COLLATE nocase COLLATE rtrim,
+      b TEXT COLLATE nocase COLLATE binary,
+      c TEXT COLLATE rtrim COLLATE binary COLLATE rtrim COLLATE nocase
+    );
+    INSERT INTO c5 VALUES(1, 'abc','abc','abc');
+    INSERT INTO c5 VALUES(2, 'abc   ','ABC','ABC');
+    SELECT id FROM c5 WHERE a='abc' ORDER BY id;
+  }
+} {1 2}
+do_test collate1-5.2 {
+  execsql {
+    SELECT id FROM c5 WHERE b='abc' ORDER BY id;
+  }
+} {1}
+do_test collate1-5.3 {
+  execsql {
+    SELECT id FROM c5 WHERE c='abc' ORDER BY id;
+  }
+} {1 2}
+
 finish_test