diff options
Diffstat (limited to 'src/include/executor/executor.h')
| -rw-r--r-- | src/include/executor/executor.h | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/src/include/executor/executor.h b/src/include/executor/executor.h index dbd77050c7d..f9e6bf3d4ae 100644 --- a/src/include/executor/executor.h +++ b/src/include/executor/executor.h @@ -36,6 +36,11 @@ * of startup should occur. However, error checks (such as permission checks) * should be performed. * + * EXPLAIN_GENERIC can only be used together with EXPLAIN_ONLY. It indicates + * that a generic plan is being shown using EXPLAIN (GENERIC_PLAN), which + * means that missing parameter values must be tolerated. Currently, the only + * effect is to suppress execution-time partition pruning. + * * REWIND indicates that the plan node should try to efficiently support * rescans without parameter changes. (Nodes must support ExecReScan calls * in any case, but if this flag was not given, they are at liberty to do it @@ -52,13 +57,18 @@ * AfterTriggerBeginQuery/AfterTriggerEndQuery. This does not necessarily * mean that the plan can't queue any AFTER triggers; just that the caller * is responsible for there being a trigger context for them to be queued in. + * + * WITH_NO_DATA indicates that we are performing REFRESH MATERIALIZED VIEW + * ... WITH NO DATA. Currently, the only effect is to suppress errors about + * scanning unpopulated materialized views. */ -#define EXEC_FLAG_EXPLAIN_ONLY 0x0001 /* EXPLAIN, no ANALYZE */ -#define EXEC_FLAG_REWIND 0x0002 /* need efficient rescan */ -#define EXEC_FLAG_BACKWARD 0x0004 /* need backward scan */ -#define EXEC_FLAG_MARK 0x0008 /* need mark/restore */ -#define EXEC_FLAG_SKIP_TRIGGERS 0x0010 /* skip AfterTrigger calls */ -#define EXEC_FLAG_WITH_NO_DATA 0x0020 /* rel scannability doesn't matter */ +#define EXEC_FLAG_EXPLAIN_ONLY 0x0001 /* EXPLAIN, no ANALYZE */ +#define EXEC_FLAG_EXPLAIN_GENERIC 0x0002 /* EXPLAIN (GENERIC_PLAN) */ +#define EXEC_FLAG_REWIND 0x0004 /* need efficient rescan */ +#define EXEC_FLAG_BACKWARD 0x0008 /* need backward scan */ +#define EXEC_FLAG_MARK 0x0010 /* need mark/restore */ +#define EXEC_FLAG_SKIP_TRIGGERS 0x0020 /* skip AfterTrigger setup */ +#define EXEC_FLAG_WITH_NO_DATA 0x0040 /* REFRESH ... WITH NO DATA */ /* Hook for plugins to get control in ExecutorStart() */ |