diff options
Diffstat (limited to 'src/backend/parser/parse_utilcmd.c')
| -rw-r--r-- | src/backend/parser/parse_utilcmd.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/backend/parser/parse_utilcmd.c b/src/backend/parser/parse_utilcmd.c index e319d57acab..a65b2977281 100644 --- a/src/backend/parser/parse_utilcmd.c +++ b/src/backend/parser/parse_utilcmd.c @@ -26,12 +26,14 @@ #include "postgres.h" +#include "access/amapi.h" #include "access/htup_details.h" #include "access/reloptions.h" #include "catalog/dependency.h" #include "catalog/heap.h" #include "catalog/index.h" #include "catalog/namespace.h" +#include "catalog/pg_am.h" #include "catalog/pg_collation.h" #include "catalog/pg_constraint.h" #include "catalog/pg_opclass.h" @@ -1072,6 +1074,7 @@ generateClonedIndexStmt(CreateStmtContext *cxt, Relation source_idx, Form_pg_attribute *attrs = RelationGetDescr(source_idx)->attrs; HeapTuple ht_idxrel; HeapTuple ht_idx; + HeapTuple ht_am; Form_pg_class idxrelrec; Form_pg_index idxrec; Form_pg_am amrec; @@ -1100,8 +1103,12 @@ generateClonedIndexStmt(CreateStmtContext *cxt, Relation source_idx, idxrec = (Form_pg_index) GETSTRUCT(ht_idx); indrelid = idxrec->indrelid; - /* Fetch pg_am tuple for source index from relcache entry */ - amrec = source_idx->rd_am; + /* Fetch the pg_am tuple of the index' access method */ + ht_am = SearchSysCache1(AMOID, ObjectIdGetDatum(idxrelrec->relam)); + if (!HeapTupleIsValid(ht_am)) + elog(ERROR, "cache lookup failed for access method %u", + idxrelrec->relam); + amrec = (Form_pg_am) GETSTRUCT(ht_am); /* Extract indcollation from the pg_index tuple */ datum = SysCacheGetAttr(INDEXRELID, ht_idx, @@ -1299,7 +1306,7 @@ generateClonedIndexStmt(CreateStmtContext *cxt, Relation source_idx, iparam->nulls_ordering = SORTBY_NULLS_DEFAULT; /* Adjust options if necessary */ - if (amrec->amcanorder) + if (source_idx->rd_amroutine->amcanorder) { /* * If it supports sort ordering, copy DESC and NULLS opts. Don't @@ -1361,6 +1368,7 @@ generateClonedIndexStmt(CreateStmtContext *cxt, Relation source_idx, /* Clean up */ ReleaseSysCache(ht_idxrel); + ReleaseSysCache(ht_am); return index; } |