diff options
Diffstat (limited to 'contrib/postgres_fdw/postgres_fdw.h')
| -rw-r--r-- | contrib/postgres_fdw/postgres_fdw.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/contrib/postgres_fdw/postgres_fdw.h b/contrib/postgres_fdw/postgres_fdw.h index a11d45bedfc..9074fa30520 100644 --- a/contrib/postgres_fdw/postgres_fdw.h +++ b/contrib/postgres_fdw/postgres_fdw.h @@ -134,6 +134,18 @@ typedef struct PgFdwConnState AsyncRequest *pendingAreq; /* pending async request */ } PgFdwConnState; +/* + * Method used by ANALYZE to sample remote rows. + */ +typedef enum PgFdwSamplingMethod +{ + ANALYZE_SAMPLE_OFF, /* no remote sampling */ + ANALYZE_SAMPLE_AUTO, /* choose by server version */ + ANALYZE_SAMPLE_RANDOM, /* remote random() */ + ANALYZE_SAMPLE_SYSTEM, /* TABLESAMPLE system */ + ANALYZE_SAMPLE_BERNOULLI /* TABLESAMPLE bernoulli */ +} PgFdwSamplingMethod; + /* in postgres_fdw.c */ extern int set_transmission_modes(void); extern void reset_transmission_modes(int nestlevel); @@ -211,7 +223,10 @@ extern void deparseDirectDeleteSql(StringInfo buf, PlannerInfo *root, List *returningList, List **retrieved_attrs); extern void deparseAnalyzeSizeSql(StringInfo buf, Relation rel); +extern void deparseAnalyzeTuplesSql(StringInfo buf, Relation rel); extern void deparseAnalyzeSql(StringInfo buf, Relation rel, + PgFdwSamplingMethod sample_method, + double sample_frac, List **retrieved_attrs); extern void deparseTruncateSql(StringInfo buf, List *rels, |