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Avoid creating a TOAST table for a partitioned table. 

It's useless.

Amit Langote

Discussion: http://postgr.es/m/b4c9dee6-d134-49b8-79c4-07fbd7c3b898@lab.ntt.co.jp
This commit is contained in:
Robert Haas 2018-03-22 13:49:38 -04:00
parent 8a8c4f3b32
commit 2fe6336e2d
1 changed files with 4 additions and 0 deletions
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4
src/backend/catalog/toasting.c
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@ -397,6 +397,7 @@ create_toast_table(Relation rel, Oid toastOid, Oid toastIndexOid,
* (1) there are any toastable attributes, and (2) the maximum length
* of a tuple could exceed TOAST_TUPLE_THRESHOLD. (We don't want to
* create a toast table for something like "f1 varchar(20)".)
* No need to create a TOAST table for partitioned tables.
*/
static bool
needs_toast_table(Relation rel)
@ -408,6 +409,9 @@ needs_toast_table(Relation rel)
int32 tuple_length;
int i;
if (rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
return false;
tupdesc = rel->rd_att;
for (i = 0; i < tupdesc->natts; i++)