psql: Add tab completion for COPY with query

From: Andreas Karlsson 

diff --git a/src/bin/psql/tab-complete.c b/src/bin/psql/tab-complete.c
index c3c77bd58765371aeebf8d0540c5be3dc415d3b8..f09e65c58ddf3eacf34690dcd1d3c1c7ecee29ef 100644 (file)
--- a/src/bin/psql/tab-complete.c
+++ b/src/bin/psql/tab-complete.c
@@ -1934,11 +1934,18 @@ psql_completion(const char *text, int start, int end)
 /* COPY */
 
    /*
-    * If we have COPY [BINARY] (which you'd have to type yourself), offer
-    * list of tables (Also cover the analogous backslash command)
+    * If we have COPY, offer list of tables or "(" (Also cover the analogous
+    * backslash command).
     */
-   else if (Matches1("COPY|\\copy") || Matches2("COPY", "BINARY"))
+   else if (Matches1("COPY|\\copy"))
+       COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables,
+                                  " UNION ALL SELECT '('");
+   /* If we have COPY BINARY, complete with list of tables */
+   else if (Matches2("COPY", "BINARY"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
+   /* If we have COPY (, complete it with legal commands */
+   else if (Matches2("COPY|\\copy", "("))
+       COMPLETE_WITH_LIST7("SELECT", "TABLE", "VALUES", "INSERT", "UPDATE", "DELETE", "WITH");
    /* If we have COPY [BINARY] , complete it with "TO" or "FROM" */
    else if (Matches2("COPY|\\copy", MatchAny) ||
             Matches3("COPY", "BINARY", MatchAny))