psql: Add tab completion for COPY (MERGE ...

The underlying feature for this was added in PostgreSQL 17.

Author: Jian He <jian.universality@gmail.com>
Discussion: https://www.postgresql.org/message-id/CACJufxEmNjxvf1deR1zBrJbjAMeCooooLRzZ+yaaBuqDKh_6-Q@mail.gmail.com

diff --git a/src/bin/psql/tab-complete.c b/src/bin/psql/tab-complete.c
index 2e55607b8add87bd9193bcc8a9eac7195979459c..1bd01ff865ff52fc51c7f440d4832601bc8b454c 100644 (file)
--- a/src/bin/psql/tab-complete.c
+++ b/src/bin/psql/tab-complete.c
@@ -2873,7 +2873,7 @@ psql_completion(const char *text, int start, int end)
                COMPLETE_WITH_SCHEMA_QUERY_PLUS(Query_for_list_of_tables, "(");
        /* Complete COPY ( with legal query commands */
        else if (Matches("COPY|\\copy", "("))
-               COMPLETE_WITH("SELECT", "TABLE", "VALUES", "INSERT INTO", "UPDATE", "DELETE FROM", "WITH");
+               COMPLETE_WITH("SELECT", "TABLE", "VALUES", "INSERT INTO", "UPDATE", "DELETE FROM", "MERGE INTO", "WITH");
        /* Complete COPY <sth> */
        else if (Matches("COPY|\\copy", MatchAny))
                COMPLETE_WITH("FROM", "TO");