diff options
Diffstat (limited to 'src/backend/utils/cache/lsyscache.c')
| -rw-r--r-- | src/backend/utils/cache/lsyscache.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/backend/utils/cache/lsyscache.c b/src/backend/utils/cache/lsyscache.c index 6a398638906..1dc293297d9 100644 --- a/src/backend/utils/cache/lsyscache.c +++ b/src/backend/utils/cache/lsyscache.c @@ -24,12 +24,14 @@ #include "catalog/pg_amproc.h" #include "catalog/pg_collation.h" #include "catalog/pg_constraint.h" +#include "catalog/pg_language.h" #include "catalog/pg_namespace.h" #include "catalog/pg_opclass.h" #include "catalog/pg_operator.h" #include "catalog/pg_proc.h" #include "catalog/pg_range.h" #include "catalog/pg_statistic.h" +#include "catalog/pg_transform.h" #include "catalog/pg_type.h" #include "miscadmin.h" #include "nodes/makefuncs.h" @@ -977,6 +979,30 @@ get_constraint_name(Oid conoid) return NULL; } +/* ---------- LANGUAGE CACHE ---------- */ + +char * +get_language_name(Oid langoid, bool missing_ok) +{ + HeapTuple tp; + + tp = SearchSysCache1(LANGOID, ObjectIdGetDatum(langoid)); + if (HeapTupleIsValid(tp)) + { + Form_pg_language lantup = (Form_pg_language) GETSTRUCT(tp); + char *result; + + result = pstrdup(NameStr(lantup->lanname)); + ReleaseSysCache(tp); + return result; + } + + if (!missing_ok) + elog(ERROR, "cache lookup failed for language %u", + langoid); + return NULL; +} + /* ---------- OPCLASS CACHE ---------- */ /* @@ -1743,6 +1769,51 @@ get_rel_tablespace(Oid relid) } +/* ---------- TRANSFORM CACHE ---------- */ + +Oid +get_transform_fromsql(Oid typid, Oid langid, List *trftypes) +{ + HeapTuple tup; + + if (!list_member_oid(trftypes, typid)) + return InvalidOid; + + tup = SearchSysCache2(TRFTYPELANG, typid, langid); + if (HeapTupleIsValid(tup)) + { + Oid funcid; + + funcid = ((Form_pg_transform) GETSTRUCT(tup))->trffromsql; + ReleaseSysCache(tup); + return funcid; + } + else + return InvalidOid; +} + +Oid +get_transform_tosql(Oid typid, Oid langid, List *trftypes) +{ + HeapTuple tup; + + if (!list_member_oid(trftypes, typid)) + return InvalidOid; + + tup = SearchSysCache2(TRFTYPELANG, typid, langid); + if (HeapTupleIsValid(tup)) + { + Oid funcid; + + funcid = ((Form_pg_transform) GETSTRUCT(tup))->trftosql; + ReleaseSysCache(tup); + return funcid; + } + else + return InvalidOid; +} + + /* ---------- TYPE CACHE ---------- */ /* |