Extend test case

Author: comnik

tests/bin/snapshot.bin

@@ -55,8 +55,20 @@
       (output :snapshot2 :snapshot2)
       (output :snapshot3 :snapshot3)))
 
-  ;; Snapshot with a prefix: express that all EDBs under "database" are captured.
+  ;; Snapshot with a prefix: express that all EDBs under "lineitem" are captured.
   (epoch
     (writes
-      (snapshot ["database"]
-        ["table"] :computed))))
+      (snapshot ["lineitem"]
+        ["l_orderkey"] :my_rel
+        ["l_partkey"] :computed
+        ["l_quantity"] :big_signed)))
+
+  ;; Same snapshot with prefix redundantly included in mappings for backwards
+  ;; compatibility: an older engine that ignores the prefix field can still
+  ;; interpret the full paths.
+  (epoch
+    (writes
+      (snapshot ["lineitem"]
+        ["lineitem" "l_orderkey"] :my_rel
+        ["lineitem" "l_partkey"] :computed
+        ["lineitem" "l_quantity"] :big_signed))))

tests/lqp/snapshot.lqp

@@ -50,4 +50,17 @@
       (output :snapshot1 :snapshot1)
       (output :snapshot2 :snapshot2)
       (output :snapshot3 :snapshot3)))
-  (epoch (writes (snapshot ["database"] ["table"] :computed))))
+  (epoch
+    (writes
+      (snapshot
+        ["lineitem"]
+        ["l_orderkey"] :my_rel
+        ["l_partkey"] :computed
+        ["l_quantity"] :big_signed)))
+  (epoch
+    (writes
+      (snapshot
+        ["lineitem"]
+        ["lineitem" "l_orderkey"] :my_rel
+        ["lineitem" "l_partkey"] :computed
+        ["lineitem" "l_quantity"] :big_signed))))

tests/pretty/snapshot.lqp

@@ -55,7 +55,20 @@
       (output :snapshot1 0x3624e471390d4119e743ba2750262197)
       (output :snapshot2 0xceba74ef3d3b0152a90894dc7ae1c114)
       (output :snapshot3 0xc772efb99999f4e6a9aefdc272b64ec8)))
-  (epoch (writes (snapshot ["database"] ["table"] 0x80ad6fa1421c555c156fcefb75cfa12f))))
+  (epoch
+    (writes
+      (snapshot
+        ["lineitem"]
+        ["l_orderkey"] 0x6a1bb464a40d07263ff95ce83517a614
+        ["l_partkey"] 0x80ad6fa1421c555c156fcefb75cfa12f
+        ["l_quantity"] 0xc00744ac4c3b7e574fb72f89046b65c)))
+  (epoch
+    (writes
+      (snapshot
+        ["lineitem"]
+        ["lineitem" "l_orderkey"] 0x6a1bb464a40d07263ff95ce83517a614
+        ["lineitem" "l_partkey"] 0x80ad6fa1421c555c156fcefb75cfa12f
+        ["lineitem" "l_quantity"] 0xc00744ac4c3b7e574fb72f89046b65c))))
 
 ;; Debug information
 ;; -----------------------