Avoid different-size pointer-to-integer cast

Buildfarm member mamba is unhappy that I wrote "(Datum) NULL" in commit
28d534e2ae0a:
  https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=mamba&dt=2026-04-07%2005%3A08%3A08
Use "(Datum) 0" which is what we do everywhere else.

Discussion: https://postgr.es/m/CANWCAZaOs_+WPH13ow33Q==+FwBwVZkqzm4vND=WEB4_NBmv1Q@mail.gmail.com

diff --git a/src/backend/commands/repack.c b/src/backend/commands/repack.c
index 17b639b3b4484068c2c14edfb33e9a483b05f3ec..20dad22c4b7c344049eaaf03cc1e0c210a553024 100644 (file)
--- a/src/backend/commands/repack.c
+++ b/src/backend/commands/repack.c
@@ -2943,7 +2943,7 @@ initialize_change_context(ChangeContext *chgcxt,
                        ScanKeyInit(entry,
                                                i + 1,
                                                BTEqualStrategyNumber, opcode,
-                                               (Datum) NULL);
+                                               (Datum) 0);
                        entry->sk_collation = chgcxt->cc_ident_index->rd_indcollation[i];
                }
        }