diff options
| author | Kevin Grittner | 2016-11-04 15:49:50 +0000 |
|---|---|---|
| committer | Kevin Grittner | 2016-11-04 15:49:50 +0000 |
| commit | 8c48375e5f43ebd832f93c9166d1fe0e639ff806 (patch) | |
| tree | 5115baa716b278c4dcabcf6b22fd446a17eb36d8 /src/backend/nodes/outfuncs.c | |
| parent | 69d590fffbdcfb50a31a8c78ce87e602002a869f (diff) | |
Implement syntax for transition tables in AFTER triggers.
This is infrastructure for the complete SQL standard feature. No
support is included at this point for execution nodes or PLs. The
intent is to add that soon.
As this patch leaves things, standard syntax can create tuplestores
to contain old and/or new versions of rows affected by a statement.
References to these tuplestores are in the TriggerData structure.
C triggers can access the tuplestores directly, so they are usable,
but they cannot yet be referenced within a SQL statement.
Diffstat (limited to 'src/backend/nodes/outfuncs.c')
| -rw-r--r-- | src/backend/nodes/outfuncs.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c index ae869547f35..748b6879292 100644 --- a/src/backend/nodes/outfuncs.c +++ b/src/backend/nodes/outfuncs.c @@ -2562,6 +2562,16 @@ _outXmlSerialize(StringInfo str, const XmlSerialize *node) } static void +_outTriggerTransition(StringInfo str, const TriggerTransition *node) +{ + WRITE_NODE_TYPE("TRIGGERTRANSITION"); + + WRITE_STRING_FIELD(name); + WRITE_BOOL_FIELD(isNew); + WRITE_BOOL_FIELD(isTable); +} + +static void _outColumnDef(StringInfo str, const ColumnDef *node) { WRITE_NODE_TYPE("COLUMNDEF"); @@ -3852,6 +3862,9 @@ outNode(StringInfo str, const void *obj) case T_ForeignKeyCacheInfo: _outForeignKeyCacheInfo(str, obj); break; + case T_TriggerTransition: + _outTriggerTransition(str, obj); + break; default: |