diff options
Diffstat (limited to 'src/backend/access/common/tupdesc.c')
| -rw-r--r-- | src/backend/access/common/tupdesc.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/backend/access/common/tupdesc.c b/src/backend/access/common/tupdesc.c index 4436c863617..9e37ca73a86 100644 --- a/src/backend/access/common/tupdesc.c +++ b/src/backend/access/common/tupdesc.c @@ -185,6 +185,22 @@ CreateTupleDescCopyConstr(TupleDesc tupdesc) } /* + * TupleDescCopy + * Copy a tuple descriptor into caller-supplied memory. + * The memory may be shared memory mapped at any address, and must + * be sufficient to hold TupleDescSize(src) bytes. + * + * !!! Constraints and defaults are not copied !!! + */ +void +TupleDescCopy(TupleDesc dst, TupleDesc src) +{ + memcpy(dst, src, TupleDescSize(src)); + dst->constr = NULL; + dst->tdrefcount = -1; +} + +/* * TupleDescCopyEntry * This function copies a single attribute structure from one tuple * descriptor to another. |