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Combine options for RangeVarGetRelidExtended() into a flags argument.

A followup patch will add a SKIP_LOCKED option. To avoid introducing
evermore arguments, breaking existing callers each time, introduce a
flags argument. This'll no doubt break a few external users...

Also change the MISSING_OK behaviour so a DEBUG1 debug message is
emitted when a relation is not found.

Author: Nathan Bossart
Reviewed-By: Michael Paquier and Andres Freund
Discussion: https://postgr.es/m/20180306005349.b65whmvj7z6hbe2y@alap3.anarazel.de
This commit is contained in:
Andres Freund
2018-03-30 16:33:42 -07:00
parent 9a895462d9
commit d87510a524
12 changed files with 45 additions and 32 deletions

View File

@@ -47,14 +47,24 @@ typedef struct OverrideSearchPath
bool addTemp; /* implicitly prepend temp schema? */
} OverrideSearchPath;
/*
* Option flag bits for RangeVarGetRelidExtended().
*/
typedef enum RVROption
{
RVR_MISSING_OK = 1 << 0, /* don't error if relation doesn't exist */
RVR_NOWAIT = 1 << 1 /* error if relation cannot be locked */
} RVROption;
typedef void (*RangeVarGetRelidCallback) (const RangeVar *relation, Oid relId,
Oid oldRelId, void *callback_arg);
#define RangeVarGetRelid(relation, lockmode, missing_ok) \
RangeVarGetRelidExtended(relation, lockmode, missing_ok, false, NULL, NULL)
RangeVarGetRelidExtended(relation, lockmode, \
(missing_ok) ? RVR_MISSING_OK : 0, NULL, NULL)
extern Oid RangeVarGetRelidExtended(const RangeVar *relation,
LOCKMODE lockmode, bool missing_ok, bool nowait,
LOCKMODE lockmode, uint32 flags,
RangeVarGetRelidCallback callback,
void *callback_arg);
extern Oid RangeVarGetCreationNamespace(const RangeVar *newRelation);