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| author | Peter Eisentraut | 2019-03-30 07:13:09 +0000 |
|---|---|---|
| committer | Peter Eisentraut | 2019-03-30 07:15:57 +0000 |
| commit | fc22b6623b6b3bab3cb057ccd282c2bfad1a0b30 (patch) | |
| tree | cda5092955ece5d547d5517ed56a3d480f199d25 /src/include/executor/nodeModifyTable.h | |
| parent | 6b8b5364ddd0e4d882562615c6b6c28638ade9f2 (diff) | |
Generated columns
This is an SQL-standard feature that allows creating columns that are
computed from expressions rather than assigned, similar to a view or
materialized view but on a column basis.
This implements one kind of generated column: stored (computed on
write). Another kind, virtual (computed on read), is planned for the
future, and some room is left for it.
Reviewed-by: Michael Paquier <[email protected]>
Reviewed-by: Pavel Stehule <[email protected]>
Discussion: https://www.postgresql.org/message-id/flat/[email protected]
Diffstat (limited to 'src/include/executor/nodeModifyTable.h')
| -rw-r--r-- | src/include/executor/nodeModifyTable.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/include/executor/nodeModifyTable.h b/src/include/executor/nodeModifyTable.h index b8b289efc0e..891b119608b 100644 --- a/src/include/executor/nodeModifyTable.h +++ b/src/include/executor/nodeModifyTable.h @@ -15,6 +15,8 @@ #include "nodes/execnodes.h" +extern void ExecComputeStoredGenerated(EState *estate, TupleTableSlot *slot); + extern ModifyTableState *ExecInitModifyTable(ModifyTable *node, EState *estate, int eflags); extern void ExecEndModifyTable(ModifyTableState *node); extern void ExecReScanModifyTable(ModifyTableState *node); |