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Allow a partitioned table to have a default partition.

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Any tuples that don't route to any other partition will route to the
default partition.

Jeevan Ladhe, Beena Emerson, Ashutosh Bapat, Rahila Syed, and Robert
Haas, with review and testing at various stages by (at least) Rushabh
Lathia, Keith Fiske, Amit Langote, Amul Sul, Rajkumar Raghuanshi, Sven
Kunze, Kyotaro Horiguchi, Thom Brown, Rafia Sabih, and Dilip Kumar.

Discussion: http://postgr.es/m/CAH2L28tbN4SYyhS7YV1YBWcitkqbhSWfQCy0G=apRcC_PEO-bg@mail.gmail.com
Discussion: http://postgr.es/m/CAOG9ApEYj34fWMcvBMBQ-YtqR9fTdXhdN82QEKG0SVZ6zeL1xg@mail.gmail.com
This commit is contained in:
Robert Haas
2017-09-08 17:28:04 -04:00
parent 2cf15ec8b1
commit 6f6b99d133
31 changed files with 1369 additions and 137 deletions
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8
src/backend/utils/adt/ruleutils.c
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@ -1750,7 +1750,7 @@ pg_get_partition_constraintdef(PG_FUNCTION_ARGS)
constr_expr = get_partition_qual_relid(relationId);
/* Quick exit if not a partition */
/* Quick exit if no partition constraint */
if (constr_expr == NULL)
PG_RETURN_NULL();
@ -8699,6 +8699,12 @@ get_rule_expr(Node *node, deparse_context *context,
ListCell *cell;
char *sep;
if (spec->is_default)
{
appendStringInfoString(buf, "DEFAULT");
break;
}
switch (spec->strategy)
{
case PARTITION_STRATEGY_LIST: