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enum PgqFields {
EV_TYPE = 0,
EV_DATA,
EV_EXTRA1,
EV_EXTRA2,
EV_EXTRA3,
EV_EXTRA4,
EV_WHEN,
EV_NFIELDS
};
/*
* Per-event temporary data.
*/
struct PgqTriggerEvent {
char op_type;
/* overridable fields */
// fixme: check proper usage
const char *table_name;
const char *queue_name;
const char *pkey_list;
/* no cache for old-style args */
const char *attkind;
int attkind_len;
/* cached per-table info */
struct PgqTableInfo *info;
/* cached per-trigger args */
struct PgqTriggerInfo *tgargs;
/* current event data */
TriggerData *tgdata;
/* result fields */
StringInfo field[EV_NFIELDS];
/* if 'when=' query fails */
bool skip_event;
};
typedef struct PgqTriggerEvent PgqTriggerEvent;
/*
* Per trigger cached info, stored under table cache,
* so that invalidate can drop it.
*/
struct PgqTriggerInfo {
struct PgqTriggerInfo *next;
Oid tgoid;
bool finalized;
bool skip;
bool backup;
bool custom_fields;
bool deny;
const char *ignore_list;
const char *pkey_list;
struct QueryBuilder *query[EV_NFIELDS];
};
/*
* Per-table cached info.
*
* Per-trigger info should be cached under tg_cache.
*/
struct PgqTableInfo {
Oid reloid; /* must be first, used by htab */
int n_pkeys; /* number of pkeys */
const char *pkey_list; /* pk column name list */
int *pkey_attno; /* pk column positions */
char *table_name; /* schema-quelified table name */
int invalid; /* set if the info was invalidated */
struct PgqTriggerInfo *tg_cache;
};
/* common.c */
void pgq_prepare_event(struct PgqTriggerEvent *ev, TriggerData *tg, bool newstyle);
void pgq_simple_insert(const char *queue_name, Datum ev_type, Datum ev_data,
Datum ev_extra1, Datum ev_extra2, Datum ev_extra3, Datum ev_extra4);
bool pgqtriga_skip_col(PgqTriggerEvent *ev, int i, int attkind_idx);
bool pgqtriga_is_pkey(PgqTriggerEvent *ev, int i, int attkind_idx);
void pgq_insert_tg_event(PgqTriggerEvent *ev);
bool pgq_is_logging_disabled(void);
/* makesql.c */
int pgqtriga_make_sql(PgqTriggerEvent *ev, StringInfo sql);
/* logutriga.c */
void pgq_urlenc_row(PgqTriggerEvent *ev, HeapTuple row, StringInfo buf);
#ifndef TRIGGER_FIRED_BY_TRUNCATE
#define TRIGGER_FIRED_BY_TRUNCATE(tg) 0
#endif
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